privacy: remove external data transmissions & add GitHub release workflow

Remove three active external data transmission paths:

1. WebFetch domain blocklist (api.anthropic.com/api/web/domain_info)
   - src/tools/WebFetchTool/utils.ts
   - Was sending every domain a user tried to fetch to Anthropic
   - Replaced with always-allowed stub; tool permission dialog is
     the primary security boundary

2. Codex API router (chatgpt.com/backend-api/codex/responses)
   - src/services/api/codex-fetch-adapter.ts
   - Would have forwarded full conversation content to OpenAI
   - createCodexFetch now returns HTTP 403 stub

3. OpenAI API adapter (api.openai.com/v1/chat/completions)
   - src/utils/codex-fetch-adapter.ts
   - Would have forwarded messages to OpenAI
   - fetchCodexResponse now throws immediately

Already-disabled paths (no changes needed):
- Analytics logEvent/logEventAsync: empty stubs in services/analytics/index.ts
- GrowthBook/Statsig: local cache only, no outbound requests
- Auto-updater GCS: already guarded by CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC
- MCP registry: already guarded by CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC
- Release notes GitHub: already guarded by isEssentialTrafficOnly()

Add .github/workflows/release.yml:
- Builds self-contained binaries for macOS (x64+arm64), Linux (x64+arm64),
  Windows (x64) using bun compile on each native runner
- Triggers on version tags (v*.*.*) or manual workflow_dispatch
- Publishes binaries + SHA256SUMS.txt as a GitHub Release with
  per-platform install instructions

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.github/workflows/release.yml

@@ -0,0 +1,169 @@
+name: Build & Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Release tag (e.g. v2.1.88)'
+        required: false
+        default: ''
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    name: Build (${{ matrix.os }})
+    runs-on: ${{ matrix.runner }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: linux-x64
+            runner: ubuntu-latest
+            artifact: claude-linux-x64
+          - os: linux-arm64
+            runner: ubuntu-24.04-arm
+            artifact: claude-linux-arm64
+          - os: macos-x64
+            runner: macos-13
+            artifact: claude-macos-x64
+          - os: macos-arm64
+            runner: macos-latest
+            artifact: claude-macos-arm64
+          - os: windows-x64
+            runner: windows-latest
+            artifact: claude-windows-x64.exe
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: '1.3.11'
+
+      - name: Install dependencies
+        run: bun install --frozen-lockfile
+
+      - name: Build binary
+        run: bun run compile
+
+      - name: Rename binary (Unix)
+        if: runner.os != 'Windows'
+        run: |
+          mkdir -p release
+          cp dist/cli release/${{ matrix.artifact }}
+          chmod +x release/${{ matrix.artifact }}
+
+      - name: Rename binary (Windows)
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          New-Item -ItemType Directory -Force -Path release
+          Copy-Item dist/cli.exe release/${{ matrix.artifact }}
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.artifact }}
+          path: release/${{ matrix.artifact }}
+          retention-days: 7
+
+  release:
+    name: Create GitHub Release
+    needs: build
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: release/
+
+      - name: Flatten release directory
+        run: |
+          find release/ -type f | while read f; do
+            mv "$f" release/$(basename "$f")
+          done
+          find release/ -type d -empty -delete
+
+      - name: Determine release tag
+        id: tag
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ] && [ -n "${{ github.event.inputs.tag }}" ]; then
+            echo "tag=${{ github.event.inputs.tag }}" >> $GITHUB_OUTPUT
+          else
+            echo "tag=${GITHUB_REF_NAME}" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Generate checksums
+        run: |
+          cd release
+          sha256sum claude-linux-x64 claude-linux-arm64 claude-macos-x64 claude-macos-arm64 claude-windows-x64.exe > SHA256SUMS.txt 2>/dev/null || true
+          cat SHA256SUMS.txt
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ steps.tag.outputs.tag }}
+          name: Claude Code ${{ steps.tag.outputs.tag }}
+          draft: false
+          prerelease: false
+          generate_release_notes: true
+          body: |
+            ## 安装说明 / Installation
+
+            ### macOS (Apple Silicon)
+            ```bash
+            curl -L https://github.com/${{ github.repository }}/releases/download/${{ steps.tag.outputs.tag }}/claude-macos-arm64 -o claude
+            chmod +x claude && sudo mv claude /usr/local/bin/claude
+            ```
+
+            ### macOS (Intel)
+            ```bash
+            curl -L https://github.com/${{ github.repository }}/releases/download/${{ steps.tag.outputs.tag }}/claude-macos-x64 -o claude
+            chmod +x claude && sudo mv claude /usr/local/bin/claude
+            ```
+
+            ### Linux (x64)
+            ```bash
+            curl -L https://github.com/${{ github.repository }}/releases/download/${{ steps.tag.outputs.tag }}/claude-linux-x64 -o claude
+            chmod +x claude && sudo mv claude /usr/local/bin/claude
+            ```
+
+            ### Linux (ARM64)
+            ```bash
+            curl -L https://github.com/${{ github.repository }}/releases/download/${{ steps.tag.outputs.tag }}/claude-linux-arm64 -o claude
+            chmod +x claude && sudo mv claude /usr/local/bin/claude
+            ```
+
+            ### Windows (x64)
+            下载 `claude-windows-x64.exe`，将其重命名为 `claude.exe` 并添加到 PATH。
+
+            ### 验证 / Verify
+            ```bash
+            claude --version
+            ```
+
+            ### 隐私说明 / Privacy
+            本构建已移除以下外部数据传输：
+            - ✅ 已删除 WebFetch 域名检查（不再向 Anthropic 上报访问域名）
+            - ✅ 已禁用 Codex API 路由（不再将对话转发至 OpenAI chatgpt.com）
+            - ✅ Analytics/遥测已为空存根（无实际数据发送）
+            - ✅ GrowthBook/Statsig 仅使用本地缓存（无远程请求）
+          files: |
+            release/claude-linux-x64
+            release/claude-linux-arm64
+            release/claude-macos-x64
+            release/claude-macos-arm64
+            release/claude-windows-x64.exe
+            release/SHA256SUMS.txt

README.md

@@ -33,3 +33,25 @@ bun run compile
 
 - `node_modules/`, `dist/`, and generated CLI binaries are ignored by Git.
 - `bun.lock` is kept in the repository for reproducible installs.
+
+## Local Info Egress Status
+
+This fork has removed several local system and project metadata egress paths that existed in the recovered upstream code.
+
+Removed in this repository:
+
+- Model-request context injection of working directory, git status/history, `CLAUDE.md`, current date, platform, shell, and OS version.
+- Feedback upload and transcript-share upload paths.
+- Remote Control / Bridge registration fields that sent machine name, git branch, and git repository URL, plus git source/outcome data in bridge session creation.
+- Trusted-device enrollment and trusted-device token header emission for bridge requests.
+- `/insights` automatic S3 upload; reports now stay local via `file://` paths only.
+- Datadog analytics and Anthropic 1P event-logging egress.
+- GrowthBook remote evaluation/network fetches; local env/config overrides and cached values remain available for compatibility.
+- OpenTelemetry initialization and event export paths.
+- Perfetto local trace-file output paths that could persist request/tool metadata to disk.
+- Extra dead telemetry scaffolding tied to the removed egress paths, including startup/session analytics fanout, logout telemetry flush, and remote GrowthBook metadata collectors.
+
+Still present:
+
+- Normal Claude API requests are still part of product functionality; this fork only removes extra local metadata injection, not core model/network access.
+- Minimal compatibility helpers for analytics and GrowthBook still exist in the tree as local no-op or cache-only code.

docs/free-code-main-diff-analysis.md

@@ -0,0 +1,366 @@
+# `/Users/yovinchen/project/claude` 与 `/Users/yovinchen/Downloads/free-code-main` 差异分析
+
+## 1. 分析目标
+
+本文档用于比较当前工作区：
+
+- `/Users/yovinchen/project/claude`
+
+与参考项目：
+
+- `/Users/yovinchen/Downloads/free-code-main`
+
+重点回答三个问题：
+
+1. 当前项目相对参考项目改了什么。
+2. 哪些改动属于“恢复后为保证可运行而做的必要修复”。
+3. 哪些差异仍然值得继续收敛或补做验证。
+
+## 2. 总体结论
+
+当前项目不是简单复制参考项目，而是一个“基于参考快照恢复后可运行化”的工作副本。
+
+核心判断如下：
+
+1. 工程配置层与参考项目总体高度接近。
+2. 当前项目为了恢复 `bun run dev`、`build`、`compile` 能力，加入了一层运行时补丁和仓库管理文件。
+3. 源码层存在较多文件差异，主要集中在 CLI 启动链路、遥测、认证、模型配置、LogoV2、Claude in Chrome、MCP/SDK 辅助代码等区域。
+4. 当前项目额外引入了一批 `.js` 文件，明显属于“补齐运行时依赖/类型生成产物/兼容层”的恢复性文件。
+5. 参考项目仍然保留一些当前仓库没有带入的资源文件、说明文件和脚本文件，这些不一定影响运行，但会影响“与参考仓库完全一致”的完整度。
+
+## 3. 差异概览
+
+### 3.1 顶层目录差异
+
+当前项目独有的顶层内容：
+
+- `.gitattributes`
+- `docs/`
+- `vendor/`
+- `cli.js.map`
+- `.DS_Store`
+
+参考项目独有的顶层内容：
+
+- `.env`
+- `CLAUDE.md`
+- `FEATURES.md`
+- `assets/`
+- `changes.md`
+- `install.sh`
+- `run.sh`
+
+说明：
+
+1. 当前项目更像“已接入 Git 管理、可持续维护”的开发仓库。
+2. 参考项目更像“恢复快照 + 使用说明 + 辅助资源”的完整分发目录。
+3. `assets/`、`CLAUDE.md`、`FEATURES.md`、`changes.md` 当前未带入，功能上未必是阻塞，但文档与资源完整度低于参考项目。
+
+### 3.2 源码文件差异规模
+
+通过目录级比较可见：
+
+1. `src/` 下有约 `55` 个同名文件内容不同。
+2. 参考项目在 `src/` 下没有发现当前缺失而参考独有的源码文件。
+3. 当前项目反而额外多出一批源码/运行时补丁文件。
+
+这说明当前项目的主体源码骨架已经基本补齐，但很多文件内容已经偏离参考项目，不再是“原样恢复”。
+
+## 4. 工程配置差异
+
+### 4.1 `package.json`
+
+文件：
+
+- `/Users/yovinchen/project/claude/package.json`
+- `/Users/yovinchen/Downloads/free-code-main/package.json`
+
+关键差异：
+
+1. 包身份不同
+   - 当前：`name = "claude-code-recover"`
+   - 参考：`name = "claude-code-source-snapshot"`
+
+2. 版本号不同
+   - 当前：`2.1.88`
+   - 参考：`2.1.87`
+
+3. 当前项目增加了 `main: "./cli"`
+
+4. `bin` 被精简
+   - 当前只保留 `claude`
+   - 参考同时暴露 `claude` 和 `claude-source`
+
+5. `scripts` 被精简
+   - 当前保留：`build`、`compile`、`dev`
+   - 参考还包含：`build:dev`、`build:dev:full`
+
+6. 当前 `dev` 脚本加入了 `MACRO` 注入
+   - 当前：通过 `bun run -d 'MACRO:...' ./src/entrypoints/cli.tsx`
+   - 参考：直接 `bun run ./src/entrypoints/cli.tsx`
+
+7. 当前额外声明了依赖：
+   - `scheduler`
+
+分析：
+
+1. 这些差异不是随机漂移，而是为了让恢复后的工作区更适合直接运行。
+2. `MACRO` 注入是本项目最关键的运行性修复之一，因为当前源码曾出现 `MACRO is not defined` 的实际故障。
+3. 删除 `claude-source` 和精简 `scripts` 会降低与参考项目的“接口一致性”，但能让当前项目更聚焦于单一运行入口。
+4. 新增 `scheduler` 很像一个恢复期补依赖动作，说明当前项目在实际运行时遇到过依赖缺失。
+
+### 4.2 `tsconfig.json`
+
+文件：
+
+- `/Users/yovinchen/project/claude/tsconfig.json`
+- `/Users/yovinchen/Downloads/free-code-main/tsconfig.json`
+
+关键差异：
+
+1. 当前项目增加了：
+   - `"ignoreDeprecations": "6.0"`
+
+分析：
+
+1. 这属于 TypeScript 版本兼容调优。
+2. 它不会直接改变运行时行为，但说明当前项目更偏向“先保证开发过程稳定”。
+
+### 4.3 构建脚本
+
+文件：
+
+- `/Users/yovinchen/project/claude/scripts/build.ts`
+- `/Users/yovinchen/Downloads/free-code-main/scripts/build.ts`
+
+结论：
+
+1. 构建脚本主体保持一致。
+2. 当前工程与参考项目的差异主要不在构建逻辑本身，而在于 `package.json` 对入口和开发脚本的包装方式。
+
+## 5. 运行时恢复性差异
+
+这一类差异是当前项目最值得单独识别的部分，因为它们明显是“为了跑起来”而不是“为了贴近参考”。
+
+### 5.1 `MACRO` 兜底与注入
+
+关键文件：
+
+- `/Users/yovinchen/project/claude/src/entrypoints/cli.tsx`
+- `/Users/yovinchen/project/claude/src/main.tsx`
+
+观察到的现象：
+
+1. 当前项目与参考项目在这两个入口文件上都存在差异。
+2. 当前项目为了开发态运行，已经通过 `package.json` 的 `dev` 脚本显式注入 `MACRO`。
+3. 当前项目的 `src/main.tsx` 中还保留了一层 `MAIN_MACRO` 兜底逻辑，而参考项目直接使用 `MACRO.VERSION`。
+
+分析：
+
+1. 这是非常明确的“开发态/恢复态兼容修复”。
+2. 它解决的是参考项目默认依赖构建期注入、但恢复项目直接 `bun run` 时缺少注入的问题。
+3. 这类修复提高了当前项目的可运行性，但也让入口行为不再完全等同于参考项目。
+
+### 5.2 SDK 运行时补齐文件
+
+当前项目独有文件：
+
+- `/Users/yovinchen/project/claude/src/entrypoints/sdk/controlTypes.js`
+- `/Users/yovinchen/project/claude/src/entrypoints/sdk/coreTypes.generated.js`
+- `/Users/yovinchen/project/claude/src/entrypoints/sdk/runtimeTypes.js`
+- `/Users/yovinchen/project/claude/src/entrypoints/sdk/settingsTypes.generated.js`
+- `/Users/yovinchen/project/claude/src/entrypoints/sdk/toolTypes.js`
+
+分析：
+
+1. 参考项目只有对应的 `.ts` 类型/生成源码，而当前项目额外保留了 `.js` 文件。
+2. 这些文件高概率是为了解决 Bun 运行时直接加载、模块解析或类型生成产物缺失的问题。
+3. 它们属于典型“恢复补丁文件”。
+
+风险：
+
+1. 如果这些 `.js` 文件并非由统一生成流程产出，而是手工补入，那么后续源码变更后容易和 `.ts` 文件脱节。
+2. 如果要长期维护，最好明确这些文件是“源码的一部分”还是“应由生成流程产出”。
+
+### 5.3 其他当前项目独有源码
+
+当前项目独有文件：
+
+- `/Users/yovinchen/project/claude/src/skills/bundled/verify/SKILL.md`
+- `/Users/yovinchen/project/claude/src/skills/bundled/verify/examples/cli.md`
+- `/Users/yovinchen/project/claude/src/skills/bundled/verify/examples/server.md`
+- `/Users/yovinchen/project/claude/src/tools/TungstenTool/TungstenLiveMonitor.js`
+- `/Users/yovinchen/project/claude/src/tools/TungstenTool/TungstenTool.js`
+- `/Users/yovinchen/project/claude/src/tools/WorkflowTool/constants.js`
+- `/Users/yovinchen/project/claude/src/types/connectorText.js`
+
+分析：
+
+1. 这批文件同样更像运行时补齐或恢复期追加文件，而不是参考项目原始快照的一部分。
+2. 其中 `.js` 文件的存在说明当前项目对“直接运行”做过较强适配。
+3. `verify` 技能目录属于额外内置资源，偏离参考项目，但不一定是负面差异。
+
+## 6. 同名源码文件差异分布
+
+当前与参考项目存在内容差异的主要文件区域包括：
+
+- `src/main.tsx`
+- `src/entrypoints/cli.tsx`
+- `src/entrypoints/init.ts`
+- `src/commands.ts`
+- `src/commands/release-notes/release-notes.ts`
+- `src/commands/ultraplan.tsx`
+- `src/components/ConsoleOAuthFlow.tsx`
+- `src/components/LogoV2/*`
+- `src/components/StructuredDiff/colorDiff.ts`
+- `src/constants/*`
+- `src/hooks/useApiKeyVerification.ts`
+- `src/screens/REPL.tsx`
+- `src/services/analytics/*`
+- `src/services/api/client.ts`
+- `src/services/mcp/client.ts`
+- `src/services/oauth/*`
+- `src/services/voice.ts`
+- `src/skills/bundled/claudeInChrome.ts`
+- `src/skills/bundled/verifyContent.ts`
+- `src/utils/auth.ts`
+- `src/utils/claudeInChrome/*`
+- `src/utils/config.ts`
+- `src/utils/logoV2Utils.ts`
+- `src/utils/model/*`
+- `src/utils/modifiers.ts`
+- `src/utils/releaseNotes.ts`
+- `src/utils/ripgrep.ts`
+- `src/utils/telemetry/*`
+- `src/utils/theme.ts`
+
+分析：
+
+1. 差异覆盖面很广，不像单点修复，更像恢复过程中发生过多轮替换、补抄和本地修订。
+2. 受影响的区域里，很多都属于“用户可感知行为”或“外部集成逻辑”，比如认证、OAuth、模型选择、遥测、CLI 启动参数、UI 展示。
+3. 这意味着当前项目虽然已经可运行，但和参考项目在行为层面未必完全一致。
+
+## 7. 文档、资源和仓库管理层差异
+
+### 7.1 当前项目新增的仓库管理能力
+
+当前项目比参考项目多出：
+
+- `.gitattributes`
+- 更严格的 `.gitignore`
+- `docs/`
+
+其中当前 `.gitignore` 比参考项目更偏向真实开发仓库，额外忽略了：
+
+- `.DS_Store`
+- `.idea/`
+- `.claude/`
+- `cli.js.map`
+- `*.log`
+
+分析：
+
+1. 当前项目已经从“快照目录”转向“可持续维护仓库”。
+2. 这是正向改动，但它说明当前项目的目标已经不只是还原参考仓库。
+
+### 7.2 当前缺失的参考项目文档与资源
+
+参考项目存在、当前项目没有纳入的内容：
+
+- `/Users/yovinchen/Downloads/free-code-main/CLAUDE.md`
+- `/Users/yovinchen/Downloads/free-code-main/FEATURES.md`
+- `/Users/yovinchen/Downloads/free-code-main/changes.md`
+- `/Users/yovinchen/Downloads/free-code-main/assets/`
+- `/Users/yovinchen/Downloads/free-code-main/install.sh`
+- `/Users/yovinchen/Downloads/free-code-main/run.sh`
+
+分析：
+
+1. 当前项目缺的更多是“说明性与辅助性内容”，而不是主干源码。
+2. 如果目标是“恢复可运行 CLI”，这些缺失不是第一优先级。
+3. 如果目标是“尽量贴近参考项目完整交付物”，这些内容应该补回或至少评估是否要保留。
+
+## 8. 差异定性判断
+
+### 8.1 明显合理的差异
+
+这部分差异大概率是正确且有价值的：
+
+1. `package.json` 中 `dev` 脚本注入 `MACRO`
+2. `tsconfig.json` 增加 `ignoreDeprecations`
+3. 增加 `.gitignore`、`.gitattributes`、`docs/`
+4. 将当前仓库定位为可维护的 Git 项目
+
+### 8.2 明显属于恢复补丁的差异
+
+这部分差异很可能是为了跑起来而做的临时或兼容性补丁：
+
+1. `src/main.tsx` 的 `MAIN_MACRO` 兜底
+2. `src/entrypoints/sdk/*.js`
+3. `src/tools/TungstenTool/*.js`
+4. `src/tools/WorkflowTool/constants.js`
+5. `src/types/connectorText.js`
+6. `scheduler` 依赖补入
+
+### 8.3 需要继续验证的差异
+
+这部分差异可能带来行为偏移，建议后续重点回归：
+
+1. `src/main.tsx`
+2. `src/entrypoints/cli.tsx`
+3. `src/services/oauth/*`
+4. `src/services/api/client.ts`
+5. `src/services/mcp/client.ts`
+6. `src/utils/model/*`
+7. `src/services/analytics/*`
+8. `src/components/LogoV2/*`
+9. `src/commands.ts` 与 `src/commands/ultraplan.tsx`
+
+原因：
+
+1. 这些区域要么直接影响 CLI 主流程，要么影响鉴权/模型/遥测/展示逻辑。
+2. 即使项目现在能跑，也不代表与参考项目完全同构。
+
+## 9. 建议的后续动作
+
+### 9.1 如果目标是“继续可用优先”
+
+建议：
+
+1. 保留当前 `MACRO` 注入方案。
+2. 继续把 `.js` 补丁文件当作运行时兼容层管理。
+3. 用当前仓库作为主维护仓库，不强求逐字对齐参考项目。
+
+### 9.2 如果目标是“尽量收敛到参考项目”
+
+建议：
+
+1. 逐步审计 `src/main.tsx`、`src/entrypoints/cli.tsx` 与 `package.json`。
+2. 确认 `src/entrypoints/sdk/*.js` 等补丁文件是否可以通过生成流程替代。
+3. 评估是否恢复 `claude-source`、`build:dev`、`build:dev:full`。
+4. 视需求补回 `assets/`、`CLAUDE.md`、`FEATURES.md`、`changes.md`、`install.sh`、`run.sh`。
+
+### 9.3 如果目标是“做正式恢复基线”
+
+建议：
+
+1. 把当前差异分成：
+   - `必要修复`
+   - `兼容补丁`
+   - `尚未验证的行为偏移`
+2. 为主链路建立最少一轮验证：
+   - `bun run dev -- --help`
+   - `bun run dev -- --version`
+   - `bun run build`
+   - `bun run compile`
+3. 针对鉴权、模型选择、OAuth、MCP 连接、遥测开关做专项回归。
+
+## 10. 最终结论
+
+当前项目已经不是参考项目的简单副本，而是一个“参考快照基础上恢复成功、可直接运行、带本地修补层”的工程化版本。
+
+可以用一句话概括：
+
+`/Users/yovinchen/project/claude` 的主要价值在于“已经能跑并且适合继续维护”，而 `/Users/yovinchen/Downloads/free-code-main` 的主要价值在于“作为参考基线和资源来源”。
+
+如果下一步要继续治理代码，最合理的策略不是盲目回滚当前差异，而是先把差异分类，再决定哪些保留、哪些收敛、哪些补测试。

docs/free-code-main-local-system-info-removal-report.md

@@ -0,0 +1,423 @@
+# `free-code-main` 本地系统信息外发移除实现报告
+
+- 分析时间: 2026-04-03
+- 对照文档: `docs/local-system-info-egress-audit.md`
+- 分析对象: `/Users/yovinchen/Downloads/free-code-main`
+- 对照基线: `/Users/yovinchen/project/claude`
+- 分析方式: 静态代码审计 + 关键链路比对 + 同名文件差异核查
+- 说明: 本报告只基于源码静态分析，不包含运行时抓包或服务端验证。
+
+## 结论摘要
+
+结论是: **`free-code-main` 只“部分移除”了审计文档里的本地系统信息外发链路。**
+
+更准确地说，它做的是:
+
+1. **把 telemetry / analytics / OTel 相关外发出口失活了**
+   - Datadog
+   - Anthropic 1P event logging
+   - OTel 事件与 metrics/tracing 初始化
+   - GrowthBook 远程评估链路也被间接短路
+
+2. **但没有把“所有本地信息外发”都移除**
+   - 模型请求里的环境/项目上下文注入仍在
+   - Feedback 上传仍在
+   - Transcript Share 仍在
+   - Remote Control / Bridge 上传 `hostname`、目录、分支、git remote URL 的链路仍在
+   - Trusted Device 注册仍在
+   - `/insights` 的 ant-only 上传逻辑仍在
+
+3. **移除方式不是“彻底删代码”，而是“保留兼容接口 + 启动链路短路 + sink/no-op stub 化”**
+   - 这意味着仓库里仍然保留了不少采集/导出代码。
+   - 但默认运行时，关键出口函数已经被改成空实现，导致这些链路无法真正发出请求。
+
+因此，如果问题是:
+
+> `free-code-main` 是否已经把 `docs/local-system-info-egress-audit.md` 中描述的“本地系统信息外发”整体移除？
+
+答案是:
+
+**没有整体移除，只移除了其中“遥测/观测”这一类外发；产品主链路里的上下文外发和若干用户触发上传链路仍然存在。**
+
+## 对照矩阵
+
+| 审计项 | `free-code-main` 状态 | 结论 |
+| --- | --- | --- |
+| F1 模型请求 system prompt / user context | 未移除 | 默认仍会把 cwd、git 状态、CLAUDE.md、日期，以及 prompts 里的平台/壳层/OS 版本注入到模型请求 |
+| F2 Datadog analytics | 已移除 | Datadog 初始化与上报函数被 stub 成 no-op |
+| F3 Anthropic 1P event logging | 已移除 | 1P logger 整体改为空实现，启用判断恒为 `false` |
+| F4 GrowthBook remote eval | 实际已失活 | 依赖 `is1PEventLoggingEnabled()`，而 1P 已被硬关，默认不会创建 GrowthBook client |
+| F5 Feedback | 未移除 | 用户触发后仍会 POST 到 `claude_cli_feedback` |
+| F6 Transcript Share | 未移除 | 用户触发后仍会 POST 到 `claude_code_shared_session_transcripts` |
+| F7 Remote Control / Bridge | 未移除 | 仍会采集并上送 `hostname`、目录、分支、git remote URL |
+| F8 Trusted Device | 未移除 | 仍会注册 `Claude Code on <hostname> · <platform>` |
+| F9 OpenTelemetry | 已移除 | telemetry 初始化与 `logOTelEvent()` 都被改成 no-op |
+| F10 `/insights` 内部上传 | 未移除 | ant-only S3 上传逻辑仍保留 |
+
+## 关键判断
+
+这次比对里最重要的判断有两个:
+
+1. **`README.md` 里的 “Telemetry removed” 只覆盖了“遥测/观测”语义，不等于“所有本地信息外发已删除”。**
+2. **`free-code-main` 的移除策略主要是“切断出口”，而不是“删除所有采集代码”。**
+
+这也是为什么你会看到:
+
+- `src/services/analytics/metadata.ts` 这类环境信息构造代码还在
+- `src/utils/api.ts` 里上下文统计代码还在
+- `src/services/analytics/firstPartyEventLoggingExporter.ts`、`src/utils/telemetry/bigqueryExporter.ts` 这类导出器文件也还在
+
+但是:
+
+- 事件 sink
+- telemetry bootstrap
+- OTel event logging
+- Datadog / 1P logger 初始化
+
+都已经被改成空实现或被前置条件短路掉了。
+
+## 已移除部分: 实现方式分析
+
+### 1. Analytics 公共入口被改成 compatibility boundary + no-op
+
+`/Users/yovinchen/Downloads/free-code-main/src/services/analytics/index.ts:4-40` 明确写到:
+
+- “open build intentionally ships without product telemetry”
+- 保留模块只是为了不改动现有调用点
+- `attachAnalyticsSink()`、`logEvent()`、`logEventAsync()` 都是空实现
+
+这意味着:
+
+- 各业务模块里仍然可以继续 `import { logEvent }`
+- 但这些调用不会再入队、不会再挂 sink、也不会再向任何后端发送
+
+对照 `/Users/yovinchen/project/claude/src/services/analytics/index.ts`，当前工作区版本还保留:
+
+- 事件队列
+- `attachAnalyticsSink()` 的真实绑定
+- `logEvent()` / `logEventAsync()` 的真实分发
+
+所以这里是非常明确的“出口 stub 化”。
+
+### 2. Datadog 被直接 stub 掉
+
+`/Users/yovinchen/Downloads/free-code-main/src/services/analytics/datadog.ts:1-12` 中:
+
+- `initializeDatadog()` 直接返回 `false`
+- `shutdownDatadog()` 空实现
+- `trackDatadogEvent()` 空实现
+
+而对照 `/Users/yovinchen/project/claude/src/services/analytics/datadog.ts:12-140`，基线版本仍然保留:
+
+- Datadog endpoint
+- 批量缓冲
+- `axios.post(...)`
+
+因此 F2 可以判定为**已移除**。
+
+### 3. 1P event logging 被整体空实现
+
+`/Users/yovinchen/Downloads/free-code-main/src/services/analytics/firstPartyEventLogger.ts:1-48` 中:
+
+- `is1PEventLoggingEnabled()` 恒为 `false`
+- `logEventTo1P()` 空实现
+- `initialize1PEventLogging()` 空实现
+- `reinitialize1PEventLoggingIfConfigChanged()` 空实现
+
+这和基线 `/Users/yovinchen/project/claude/src/services/analytics/firstPartyEventLogger.ts:141-220` 中真实存在的:
+
+- `getEventMetadata(...)`
+- `getCoreUserData(true)`
+- OTel logger emit
+
+形成了直接对照。
+
+需要注意的是:
+
+- `src/services/analytics/firstPartyEventLoggingExporter.ts` 文件仍然存在
+- 里面仍保留 `/api/event_logging/batch` 的完整实现
+
+但由于 logger 初始化入口已经空了，这个 exporter 在默认路径上已经不会被接上。
+
+因此 F3 的移除方式属于:
+
+**保留 exporter 源码，但把“上游 logger/provider 初始化”整体切断。**
+
+### 4. Analytics sink 初始化被清空，启动调用点保留
+
+`/Users/yovinchen/Downloads/free-code-main/src/services/analytics/sink.ts:1-10` 中:
+
+- `initializeAnalyticsGates()` 空实现
+- `initializeAnalyticsSink()` 空实现
+
+但启动链路并没有删调用点:
+
+- `/Users/yovinchen/Downloads/free-code-main/src/main.tsx:83-86,416-417` 仍然 import 并调用 `initializeAnalyticsGates()`
+- `/Users/yovinchen/Downloads/free-code-main/src/setup.ts:371` 仍然调用 `initSinks()`
+
+这说明作者的思路不是“到处改业务调用点”，而是:
+
+**保留启动顺序与依赖图，统一在 sink 层面把行为变空。**
+
+### 5. OTel 初始化被显式短路
+
+`/Users/yovinchen/Downloads/free-code-main/src/entrypoints/init.ts:207-212` 直接把:
+
+- `initializeTelemetryAfterTrust()`
+
+改成了立即 `return`。
+
+同时:
+
+- `/Users/yovinchen/Downloads/free-code-main/src/utils/telemetry/instrumentation.ts:1-24`
+  - `bootstrapTelemetry()` 空实现
+  - `isTelemetryEnabled()` 恒为 `false`
+  - `initializeTelemetry()` 返回 `null`
+  - `flushTelemetry()` 空实现
+- `/Users/yovinchen/Downloads/free-code-main/src/utils/telemetry/events.ts:1-12`
+  - `logOTelEvent()` 空实现
+  - 用户 prompt 内容默认只会被 `redactIfDisabled()` 处理成 `<REDACTED>`
+
+而调用点仍保留:
+
+- `/Users/yovinchen/Downloads/free-code-main/src/main.tsx:2595-2597` 仍会调用 `initializeTelemetryAfterTrust()`
+- 多个业务模块仍会调用 `logOTelEvent(...)`
+
+所以 F9 的移除方式也是:
+
+**不删调用点，只把 telemetry bootstrap 和 event emit 统一改成 no-op。**
+
+### 6. GrowthBook 不是“彻底删文件”，而是被前置条件短路
+
+`/Users/yovinchen/Downloads/free-code-main/src/services/analytics/growthbook.ts:420-425`:
+
+- `isGrowthBookEnabled()` 直接返回 `is1PEventLoggingEnabled()`
+
+而 1P 在 `firstPartyEventLogger.ts:26-27` 中已经被硬编码为 `false`。
+
+继续往下看:
+
+- `growthbook.ts:490-493` 在 client 创建前就会因为 `!isGrowthBookEnabled()` 返回 `null`
+- `growthbook.ts:685-691`、`748-750` 会在取 feature value 时直接返回默认值
+
+这意味着从当前源码推断:
+
+- 默认路径不会创建 GrowthBook client
+- 默认路径不会执行 remote eval 网络请求
+- 默认路径不会把 `deviceID/sessionId/platform/org/email` 发出去
+
+所以 F4 应该判定为:
+
+**远程评估外发链路实际上已失活。**
+
+这里有一个值得单独记录的点:
+
+- `README.md:58-64` 写的是 “GrowthBook feature flag evaluation still works locally but does not report back”
+- 但从当前代码看，更准确的说法应该是:
+  - **默认的远程评估链路已经被短路**
+  - 留下的是兼容性结构和本地 override/cache 框架
+
+这条判断是**基于源码的推断**。
+
+### 7. 本地采集代码仍有残留，但最终不会出网
+
+这部分很关键，容易误判。
+
+`free-code-main` 不是把所有采集逻辑都删掉了。典型例子:
+
+- `/Users/yovinchen/Downloads/free-code-main/src/services/analytics/metadata.ts:574-740`
+  - 仍会构造 `platform`、`arch`、`nodeVersion`、`terminal`、Linux distro、`process.memoryUsage()`、`process.cpuUsage()`、repo remote hash 等元数据
+- `/Users/yovinchen/Downloads/free-code-main/src/utils/api.ts:479-562`
+  - 仍会收集 `gitStatusSize`、`claudeMdSize`、项目文件数、MCP tool 数量
+  - 最后仍调用 `logEvent('tengu_context_size', ...)`
+- `/Users/yovinchen/Downloads/free-code-main/src/main.tsx:2521-2522`
+  - 启动时仍会执行 `logContextMetrics(...)`
+
+但由于 `src/services/analytics/index.ts:28-38` 中 `logEvent()` 已经是空实现，这些数据虽然可能仍在本地被计算，但不会从该链路继续发出。
+
+所以更准确的评价是:
+
+**移除的是 egress，不是所有 collection 语句。**
+
+## 未移除部分: 逐项核对
+
+### F1. 默认模型请求上下文外发未移除
+
+这部分在 `free-code-main` 里仍然存在，而且关键文件与基线高度一致。
+
+直接证据:
+
+- `/Users/yovinchen/Downloads/free-code-main/src/constants/prompts.ts:606-648`
+  - `computeEnvInfo()` 仍拼接:
+    - `Working directory`
+    - `Is directory a git repo`
+    - `Platform`
+    - `Shell`
+    - `OS Version`
+- `/Users/yovinchen/Downloads/free-code-main/src/constants/prompts.ts:651-709`
+  - `computeSimpleEnvInfo()` 仍拼接:
+    - `Primary working directory`
+    - `Platform`
+    - `Shell`
+    - `OS Version`
+- `/Users/yovinchen/Downloads/free-code-main/src/context.ts:36-109`
+  - `getGitStatus()` 仍读取:
+    - 当前分支
+    - 默认分支
+    - `git status --short`
+    - 最近 5 条提交
+    - `git config user.name`
+- `/Users/yovinchen/Downloads/free-code-main/src/context.ts:116-149`
+  - `getSystemContext()` 仍把 `gitStatus` 放入上下文
+- `/Users/yovinchen/Downloads/free-code-main/src/context.ts:155-187`
+  - `getUserContext()` 仍把 `CLAUDE.md` 内容和日期放入上下文
+- `/Users/yovinchen/Downloads/free-code-main/src/utils/api.ts:437-474`
+  - `appendSystemContext()` / `prependUserContext()` 仍会把这些内容拼进消息
+- `/Users/yovinchen/Downloads/free-code-main/src/query.ts:449-451,659-661`
+  - 查询时仍将这些上下文交给模型调用
+- `/Users/yovinchen/Downloads/free-code-main/src/services/api/claude.ts:1822-1832`
+  - 最终仍通过 `anthropic.beta.messages.create(...)` 发送
+
+补充比对:
+
+- `src/constants/prompts.ts`
+- `src/context.ts`
+- `src/utils/api.ts`
+- `src/query.ts`
+
+与基线仓库对应文件比对时，未看到针对这条链路的“移除性改造”。
+
+因此 F1 在 `free-code-main` 中**没有被移除**。
+
+### F5. Feedback 上传未移除
+
+`/Users/yovinchen/Downloads/free-code-main/src/components/Feedback.tsx:523-550` 仍会在用户触发时:
+
+- 刷新 OAuth
+- 取 auth headers
+- POST 到 `https://api.anthropic.com/api/claude_cli_feedback`
+
+这个文件与基线对应文件比对无差异。
+
+因此 F5 **未移除**。
+
+### F6. Transcript Share 上传未移除
+
+`/Users/yovinchen/Downloads/free-code-main/src/components/FeedbackSurvey/submitTranscriptShare.ts:37-94` 仍会收集:
+
+- `platform`
+- `transcript`
+- `subagentTranscripts`
+- `rawTranscriptJsonl`
+
+并 POST 到:
+
+- `https://api.anthropic.com/api/claude_code_shared_session_transcripts`
+
+这个文件与基线对应文件比对无差异。
+
+因此 F6 **未移除**。
+
+### F7. Remote Control / Bridge 未移除
+
+`/Users/yovinchen/Downloads/free-code-main/src/bridge/bridgeMain.ts:2340-2435` 仍会采集:
+
+- `branch`
+- `gitRepoUrl`
+- `machineName = hostname()`
+- `dir`
+
+随后:
+
+- `/Users/yovinchen/Downloads/free-code-main/src/bridge/bridgeApi.ts:142-178`
+
+仍会把这些字段 POST 到:
+
+- `/v1/environments/bridge`
+
+上传体中明确包含:
+
+- `machine_name`
+- `directory`
+- `branch`
+- `git_repo_url`
+
+`src/bridge/bridgeApi.ts` 与基线对应文件比对无差异。
+
+因此 F7 **未移除**。
+
+### F8. Trusted Device 未移除
+
+`/Users/yovinchen/Downloads/free-code-main/src/bridge/trustedDevice.ts:142-159` 仍会向:
+
+- `${baseUrl}/api/auth/trusted_devices`
+
+提交:
+
+- `display_name: Claude Code on ${hostname()} · ${process.platform}`
+
+这条链路虽然会受 `isEssentialTrafficOnly()` 影响，但代码并未被删除。
+
+`src/bridge/trustedDevice.ts` 与基线对应文件比对无差异。
+
+因此 F8 **未移除**。
+
+### F10. `/insights` ant-only 上传未移除
+
+`/Users/yovinchen/Downloads/free-code-main/src/commands/insights.ts:3075-3098` 仍保留:
+
+- `process.env.USER_TYPE === 'ant'` 分支
+- 使用 `ff cp` 上传 HTML report 到 S3
+
+这条链路不是默认外部版路径，但它在源码里仍然存在。
+
+因此 F10 **未移除**。
+
+## 与基线仓库的“未改动区域”总结
+
+以下文件经对比未看到差异，说明 `free-code-main` 没有在这些链路上做“移除”改造:
+
+- `src/constants/prompts.ts`
+- `src/context.ts`
+- `src/utils/api.ts`
+- `src/query.ts`
+- `src/components/Feedback.tsx`
+- `src/components/FeedbackSurvey/submitTranscriptShare.ts`
+- `src/bridge/bridgeApi.ts`
+- `src/bridge/trustedDevice.ts`
+- `src/commands/insights.ts`
+
+这也是为什么报告结论是“部分移除”，而不是“整体移除”。
+
+## 最终结论
+
+如果把 `docs/local-system-info-egress-audit.md` 中的链路拆开看，`free-code-main` 的状态可以总结为:
+
+1. **遥测类默认外发**
+   - Datadog: 已移除
+   - 1P event logging: 已移除
+   - OTel: 已移除
+   - GrowthBook remote eval: 默认已失活
+
+2. **产品主链路或用户触发上传**
+   - 模型 system/user context 外发: 未移除
+   - Feedback: 未移除
+   - Transcript Share: 未移除
+   - Remote Control / Bridge: 未移除
+   - Trusted Device: 未移除
+   - `/insights` ant-only 上传: 未移除
+
+因此，`free-code-main` 的真实定位更适合表述为:
+
+**它移除了“遥测/观测型外发实现”，但没有移除“产品功能本身依赖的本地信息外发”。**
+
+如果后续目标是做“彻底版本地信息外发移除”，还需要继续处理至少这些区域:
+
+- `src/constants/prompts.ts`
+- `src/context.ts`
+- `src/utils/api.ts`
+- `src/components/Feedback.tsx`
+- `src/components/FeedbackSurvey/submitTranscriptShare.ts`
+- `src/bridge/*`
+- `src/commands/insights.ts`
+

docs/local-system-info-egress-audit.md

@@ -0,0 +1,430 @@
+# 本地系统信息外发审计报告
+
+- 审计时间: 2026-04-03
+- 审计对象: `/Users/yovinchen/project/claude`
+- 审计方式: 静态代码扫描 + 关键数据流人工追踪
+- 说明: 本报告基于源码静态分析得出，未做运行时抓包或服务端行为验证。
+
+## 结论摘要
+
+结论是: **存在“采集本地/环境信息并向外发送”的代码路径，而且其中一部分是默认链路。**
+
+我把风险按类型拆开后，结论如下:
+
+1. **默认会发生的外发**
+   - 模型请求链路会把本地环境信息放进 system prompt / meta message 后发送给 Claude API。
+   - analytics/telemetry 链路会把平台、架构、Node 版本、终端、运行时、Linux 发行版、进程内存/CPU 指标等发送到 Datadog 和 Anthropic 1P 事件日志接口。
+
+2. **用户显式触发后才会发生的外发**
+   - Feedback / Transcript Share 会上传 transcript、平台信息、错误信息、最近 API 请求等。
+   - Remote Control / Bridge 会上传 `hostname`、本地目录、git 分支、git remote URL。
+   - Trusted Device 注册会上传 `hostname + platform` 组成的设备显示名。
+   - 可选 OpenTelemetry 在启用后会把 `user.id`、`session.id`、`organization.id`、`user.email`、`terminal.type` 等发往配置的 OTLP endpoint。
+
+3. **目前未发现的自动采集项**
+   - 未发现自动读取并外发 MAC 地址、网卡列表、IP 地址、`/etc/machine-id`、BIOS/主板序列号、硬件 UUID、`dmidecode`、`ioreg`、`system_profiler` 之类更敏感的硬件唯一标识。
+
+4. **额外重要发现**
+   - 这套代码不仅会外发“系统信息”，还会外发一部分“项目上下文”。
+   - 典型例子包括: 当前工作目录、是否 git 仓库、当前分支、main 分支、git user.name、`git status --short`、最近 5 条提交、`CLAUDE.md` 内容、当前日期。
+
+## 审计方法
+
+本次审计主要做了两件事:
+
+1. 搜索本地系统/环境信息采集点。
+   - 关键词包括 `os.*`、`process.platform`、`process.arch`、`process.env`、`hostname()`、`userInfo()`、`/etc/os-release`、`uname`、`git status`、`getCwd()` 等。
+
+2. 搜索外发点并做数据流关联。
+   - 关键词包括 `axios.post`、`fetch`、`WebSocket`、`anthropic.beta.messages.create`、`Datadog`、`event_logging`、`trusted_devices`、`/v1/environments/bridge`、`/v1/sessions` 等。
+
+## 发现清单
+
+| 编号 | 链路 | 是否默认 | 外发内容 | 目标位置 | 结论 |
+| --- | --- | --- | --- | --- | --- |
+| F1 | 模型请求 system prompt / user context | 是 | cwd、平台、shell、OS 版本、git 状态、git 用户、最近提交、`CLAUDE.md`、日期 | Claude API | 已确认 |
+| F2 | Datadog analytics | 是 | 平台、架构、Node 版本、终端、运行时、Linux 发行版/内核、进程 CPU/内存、repo remote hash | Datadog | 已确认 |
+| F3 | Anthropic 1P event logging | 是 | 与 F2 类似，外加 user/account/org 元数据与 process blob | `https://api.anthropic.com/api/event_logging/batch` | 已确认 |
+| F4 | GrowthBook remote eval | 大概率是 | deviceId、sessionId、platform、org/account、email、版本、GitHub Actions 元数据 | `https://api.anthropic.com/` 上的 GrowthBook 接口 | **推断成立概率高** |
+| F5 | Feedback | 否，用户触发 | platform、terminal、是否 git、transcript、raw transcript、errors、lastApiRequest | `https://api.anthropic.com/api/claude_cli_feedback` | 已确认 |
+| F6 | Transcript Share | 否，用户触发 | platform、transcript、subagent transcripts、raw transcript JSONL | `https://api.anthropic.com/api/claude_code_shared_session_transcripts` | 已确认 |
+| F7 | Remote Control / Bridge | 否，功能触发 | hostname、directory、branch、git_repo_url、session context | `/v1/environments/bridge`、`/v1/sessions` | 已确认 |
+| F8 | Trusted Device | 否，登录/设备注册 | `Claude Code on <hostname> · <platform>` | `/api/auth/trusted_devices` | 已确认 |
+| F9 | OpenTelemetry | 否，需启用 | user/session/account/email/terminal + OTEL 检测到的 OS/host arch | 配置的 OTLP endpoint | 已确认 |
+| F10 | `/insights` 内部上传 | 非外部版默认不可用 | username、报告文件 | S3 | 已确认，且 `ant-only` |
+
+## 详细分析
+
+### F1. 默认模型请求链路会外发本地环境和项目上下文
+
+证据链如下:
+
+1. `src/constants/prompts.ts:606-648` 的 `computeEnvInfo()` 会构造环境块，包含:
+   - `Working directory`
+   - `Is directory a git repo`
+   - `Platform`
+   - `Shell`
+   - `OS Version`
+
+2. `src/constants/prompts.ts:651-709` 的 `computeSimpleEnvInfo()` 也会构造同类信息，且包含 `Primary working directory`。
+
+3. `src/context.ts:36-103` 的 `getGitStatus()` 会进一步读取:
+   - 当前分支
+   - main 分支
+   - `git config user.name`
+   - `git status --short`
+   - 最近 5 条提交
+
+4. `src/context.ts:116-149` 的 `getSystemContext()` 会把 `gitStatus` 注入系统上下文。
+
+5. `src/context.ts:155-187` 的 `getUserContext()` 会把 `CLAUDE.md` 内容和当前日期放入用户上下文。
+
+6. `src/utils/api.ts:437-446` 的 `appendSystemContext()` 会把 `systemContext` 拼到 system prompt。
+
+7. `src/utils/api.ts:449-470` 的 `prependUserContext()` 会把 `userContext` 作为 `<system-reminder>` 前置到消息里。
+
+8. `src/query.ts:449-450`、`src/query.ts:659-661` 把这两部分上下文真正交给模型调用。
+
+9. `src/services/api/claude.ts:3213-3236` 会把 `systemPrompt` 序列化为 API 文本块，`src/services/api/claude.ts:1822-1832` 通过 `anthropic.beta.messages.create(...)` 发出请求。
+
+结论:
+
+- **这是默认链路**，不是用户额外点击“上传”后才发生。
+- 外发的不只是主机 OS 信息，还包括当前项目目录和 git 元信息。
+- 从数据敏感性看，`cwd`、`git user.name`、最近提交标题、`CLAUDE.md` 都可能包含组织或项目标识。
+
+### F2. 默认 Datadog analytics 会外发环境与进程指标
+
+证据链如下:
+
+1. `src/main.tsx:416-430` 会在启动早期初始化用户/上下文/analytics gate。
+
+2. `src/main.tsx:943-946` 会初始化 sinks，从而启用 analytics sink。
+
+3. `src/services/analytics/metadata.ts:417-467` 定义了要采集的 `EnvContext` 和 `ProcessMetrics` 字段。
+
+4. `src/services/analytics/metadata.ts:574-637` 实际构造环境信息，包含:
+   - `platform` / `platformRaw`
+   - `arch`
+   - `nodeVersion`
+   - `terminal`
+   - `packageManagers`
+   - `runtimes`
+   - `isCi`
+   - `isClaudeCodeRemote`
+   - `remoteEnvironmentType`
+   - `containerId`
+   - `github actions` 相关字段
+   - `wslVersion`
+   - `linuxDistroId`
+   - `linuxDistroVersion`
+   - `linuxKernel`
+   - `vcs`
+
+5. `src/services/analytics/metadata.ts:648-678` 采集进程指标，包含:
+   - `uptime`
+   - `rss`
+   - `heapTotal`
+   - `heapUsed`
+   - `external`
+   - `arrayBuffers`
+   - `constrainedMemory`
+   - `cpuUsage`
+   - `cpuPercent`
+
+6. `src/services/analytics/metadata.ts:701-739` 会把这些信息合并进每个 analytics event，并附加 `rh`。
+
+7. `src/utils/git.ts:329-337` 表明 `rh` 是 **git remote URL 的 SHA256 前 16 位哈希**，不是明文 remote URL。
+
+8. `src/services/analytics/datadog.ts:12-13` 指向 Datadog endpoint，`src/services/analytics/datadog.ts:108-115` 通过 `axios.post(...)` 发送。
+
+结论:
+
+- **Datadog 默认是活跃链路**，除非被隐私设置或 provider 条件关闭。
+- 这条链路没有看到把 `cwd`、源码正文、文件路径直接送去 Datadog；它主要发送环境维度与运行指标。
+- repo remote 不是明文发出，而是哈希值。
+
+### F3. 默认 Anthropic 1P event logging 也会外发环境与身份元数据
+
+证据链如下:
+
+1. `src/services/analytics/firstPartyEventLogger.ts:141-177` 表明 1P event logging 默认启用时，会把 `core_metadata`、`user_metadata`、`event_metadata` 一起记录。
+
+2. `src/services/analytics/firstPartyEventLoggingExporter.ts:114-120` 指定 1P 上报 endpoint 为:
+   - `https://api.anthropic.com/api/event_logging/batch`
+   - 或 staging 对应路径
+
+3. `src/services/analytics/firstPartyEventLoggingExporter.ts:587-609` 表明最终通过 `axios.post(this.endpoint, payload, ...)` 发送。
+
+4. `src/services/analytics/metadata.ts:796-970` 表明在 1P 格式化阶段，以下字段会进入上报内容:
+   - `platform/platform_raw`
+   - `arch`
+   - `node_version`
+   - `terminal`
+   - `package_managers`
+   - `runtimes`
+   - `is_ci`
+   - `is_github_action`
+   - `linux_distro_id`
+   - `linux_distro_version`
+   - `linux_kernel`
+   - `vcs`
+   - `process` base64 blob
+   - `account_uuid`
+   - `organization_uuid`
+   - `session_id`
+   - `client_type`
+
+结论:
+
+- **这也是默认链路**。
+- 与 Datadog 相比，1P event logging 能接收更完整的内部结构化元数据。
+
+### F4. GrowthBook 很可能会把本地/身份属性发到远端做特性分流
+
+证据链如下:
+
+1. `src/services/analytics/growthbook.ts:454-484` 构造了 `attributes`，包含:
+   - `id` / `deviceID`
+   - `sessionId`
+   - `platform`
+   - `apiBaseUrlHost`
+   - `organizationUUID`
+   - `accountUUID`
+   - `userType`
+   - `subscriptionType`
+   - `rateLimitTier`
+   - `firstTokenTime`
+   - `email`
+   - `appVersion`
+   - `githubActionsMetadata`
+
+2. `src/services/analytics/growthbook.ts:526-536` 使用:
+   - `apiHost`
+   - `attributes`
+   - `remoteEval: true`
+   创建 `GrowthBook` client。
+
+判断:
+
+- 由于真正的 HTTP 逻辑在第三方库内部，不在本仓库源码里直接展开，所以这里我不能把“已确认发送”说死。
+- 但从 `attributes + apiHost + remoteEval: true` 的组合看，**高概率**存在把这些属性发送到 GrowthBook 后端做远程特性评估的行为。
+- 这一条应标记为 **推断**，但可信度较高。
+
+### F5. Feedback 会在用户触发时上传平台、转录、错误和最近请求
+
+证据链如下:
+
+1. `src/components/Feedback.tsx:54-68` 的 `FeedbackData` 定义包含:
+   - `platform`
+   - `gitRepo`
+   - `version`
+   - `transcript`
+   - `rawTranscriptJsonl`
+
+2. `src/components/Feedback.tsx:206-224` 实际组装 `reportData` 时还加入:
+   - `terminal`
+   - `errors`
+   - `lastApiRequest`
+   - `subagentTranscripts`
+
+3. `src/components/Feedback.tsx:543-550` 发送到 `https://api.anthropic.com/api/claude_cli_feedback`。
+
+结论:
+
+- 这是 **用户显式触发** 的上传，不属于静默默认遥测。
+- 但数据面比普通 analytics 大得多，包含对话转录和最近 API 请求内容。
+
+### F6. Transcript Share 会在用户触发时上传 transcript 和平台
+
+证据链如下:
+
+1. `src/components/FeedbackSurvey/submitTranscriptShare.ts:37-70` 采集:
+   - `platform`
+   - `transcript`
+   - `subagentTranscripts`
+   - `rawTranscriptJsonl`
+
+2. `src/components/FeedbackSurvey/submitTranscriptShare.ts:87-94` 发送到 `https://api.anthropic.com/api/claude_code_shared_session_transcripts`。
+
+结论:
+
+- 这是 **显式分享链路**。
+- 风险面和 Feedback 类似，重点在 transcript 内容，而不是系统信息本身。
+
+### F7. Remote Control / Bridge 会上传 hostname、目录、分支、git remote URL
+
+证据链如下:
+
+1. `src/bridge/bridgeMain.ts:2340-2452` 与 `src/bridge/bridgeMain.ts:2874-2909` 都会在 bridge 启动时读取:
+   - `branch`
+   - `gitRepoUrl`
+   - `machineName = hostname()`
+   - `dir`
+
+2. `src/bridge/initReplBridge.ts:463-505` 也会把 `hostname()`、branch、gitRepoUrl 传入 bridge core。
+
+3. `src/bridge/bridgeApi.ts:142-183` 注册环境时 POST 到 `/v1/environments/bridge`，字段包括:
+   - `machine_name`
+   - `directory`
+   - `branch`
+   - `git_repo_url`
+   - `max_sessions`
+   - `worker_type`
+
+4. `src/bridge/createSession.ts:77-136` 创建 session 时还会把 git 仓库上下文放进 `session_context`，包括:
+   - 规范化后的 repo URL
+   - revision / branch
+   - owner/repo
+   - model
+
+结论:
+
+- 这是 **功能型外发**，不是无条件默认发生。
+- 但一旦启用 Remote Control，它会把本地主机名和项目标识信息发送出去。
+
+### F8. Trusted Device 会上传 hostname + platform
+
+证据链如下:
+
+1. `src/bridge/trustedDevice.ts:145-159` 会向 `${baseUrl}/api/auth/trusted_devices` 发送:
+   - `display_name: "Claude Code on <hostname> · <platform>"`
+
+结论:
+
+- 这是 **登录/设备注册链路**，不是普通对话请求。
+- 这里出现了明确的 `hostname()` 外发。
+
+### F9. OpenTelemetry 是可选链路，但一旦启用也会对外发送本地属性
+
+证据链如下:
+
+1. `src/utils/telemetry/instrumentation.ts:324-325` 表明只有 `CLAUDE_CODE_ENABLE_TELEMETRY=1` 时才启用。
+
+2. `src/utils/telemetry/instrumentation.ts:458-510` 会组装 OTEL resource，包含:
+   - service/version
+   - WSL version
+   - OS detector 结果
+   - host arch detector 结果
+   - env detector 结果
+
+3. `src/utils/telemetry/instrumentation.ts:575-607` 会初始化 log exporter 并对外发送。
+
+4. `src/utils/telemetryAttributes.ts:29-68` 还会加入:
+   - `user.id`
+   - `session.id`
+   - `app.version`
+   - `organization.id`
+   - `user.email`
+   - `user.account_uuid`
+   - `user.account_id`
+   - `terminal.type`
+
+结论:
+
+- 这是 **可选链路**，默认不是强制开启。
+- 但如果启用并配置了 OTLP endpoint，确实会把本地身份/终端/会话属性发到外部。
+
+### F10. `/insights` 还存在内部版上传链路
+
+证据链如下:
+
+1. `src/commands/insights.ts:2721-2736` 报告元数据包含:
+   - `username`
+   - 生成时间
+   - 版本
+   - 远程 homespace 信息
+
+2. `src/commands/insights.ts:3075-3098` 会在 `process.env.USER_TYPE === 'ant'` 时尝试上传 HTML 报告到 S3。
+
+结论:
+
+- 这是 **内部版 ant-only** 逻辑，不应算外部公开版本默认行为。
+- 但从源码角度，确实存在上传用户名和报告的链路。
+
+## 未发现项
+
+本次静态审计中，**没有发现**以下类型的自动采集/外发实现:
+
+- `os.networkInterfaces()`
+- `os.userInfo()` 用于遥测/外发
+- `/etc/machine-id`
+- `node-machine-id`
+- `dmidecode`
+- `ioreg`
+- `system_profiler`
+- `wmic bios`
+- `getmac`
+- `ifconfig` / `ip addr` / `ipconfig /all` 被程序主动执行用于遥测
+- MAC 地址、IP 地址、硬件序列号、主板 UUID、BIOS UUID 等硬件唯一标识
+
+补充说明:
+
+- 搜到的 `ip addr`、`ipconfig`、`hostname` 主要出现在 Bash/PowerShell 工具的只读命令校验规则里，不是程序自身自动采集再上报。
+- `hostname()` 的真实外发点主要集中在 Remote Control / Trusted Device。
+
+## 开关与缓解建议
+
+### 1. 如果你的目标是关闭默认 analytics/telemetry
+
+源码里明确支持以下限制:
+
+- `src/utils/privacyLevel.ts:1-55`
+- `src/services/analytics/config.ts:11-26`
+
+建议:
+
+- 设置 `DISABLE_TELEMETRY=1`
+  - 会进入 `no-telemetry`
+  - Datadog / 1P analytics 会被关闭
+- 设置 `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1`
+  - 会进入 `essential-traffic`
+  - 非必要网络流量会被进一步压缩
+
+### 2. 如果你的目标是避免把本地目录和 git 信息送入模型
+
+需要重点关注默认 prompt 链路，因为这部分不是传统“遥测”，而是模型上下文本身。
+
+缓解思路:
+
+- 在不敏感目录中运行，而不是直接在真实业务仓库根目录运行
+- 避免在 `git user.name`、commit message、`CLAUDE.md` 中放入敏感标识
+- 禁用或清理 `CLAUDE.md`
+- 不启用 Remote Control / Bridge / Transcript Share / Feedback
+
+### 3. 如果你的目标是避免 hostname 外发
+
+避免使用:
+
+- Remote Control / Bridge
+- Trusted Device 注册 / 某些登录设备绑定流程
+
+## 最终判断
+
+从“是否采集本地系统信息并向外发送”这个问题本身看，答案是:
+
+**是，存在，并且不止一条。**
+
+但需要区分严重程度:
+
+- **默认自动发生** 的，主要是:
+  - 模型请求中的环境/项目上下文
+  - analytics 中的环境/进程元数据
+
+- **需要用户显式动作或特定功能开启** 才发生的，主要是:
+  - Feedback / Transcript Share
+  - Remote Control / Bridge
+  - Trusted Device
+  - OpenTelemetry
+  - ant-only `/insights`
+
+- **未发现** 自动采集 MAC/IP/硬件序列号/机器唯一硬件 ID 的实现。
+
+## 审计局限
+
+- 本报告只基于本仓库源码，不包含第三方依赖内部实现的完全展开。
+- 因此 GrowthBook `remoteEval` 被标为“高概率推断”，不是 100% 抓包确认。
+- 如果你需要，我下一步可以继续补一版:
+  - 运行时抓包建议
+  - 外发域名清单
+  - 按“默认开启 / 可关闭 / 必须用户触发”生成一张更适合合规审查的表

src/bridge/bridgeApi.ts

@@ -23,16 +23,6 @@ type BridgeApiDeps = {
    * tokens don't refresh, so 401 goes straight to BridgeFatalError.
    */
   onAuth401?: (staleAccessToken: string) => Promise<boolean>
-  /**
-   * Returns the trusted device token to send as X-Trusted-Device-Token on
-   * bridge API calls. Bridge sessions have SecurityTier=ELEVATED on the
-   * server (CCR v2); when the server's enforcement flag is on,
-   * ConnectBridgeWorker requires a trusted device at JWT-issuance.
-   * Optional — when absent or returning undefined, the header is omitted
-   * and the server falls through to its flag-off/no-op path. The CLI-side
-   * gate is tengu_sessions_elevated_auth_enforcement (see trustedDevice.ts).
-   */
-  getTrustedDeviceToken?: () => string | undefined
 }
 
 const BETA_HEADER = 'environments-2025-11-01'
@@ -65,6 +55,36 @@ export class BridgeFatalError extends Error {
   }
 }
 
+function summarizeBridgeApiPayloadForDebug(data: unknown): string {
+  if (data === null) return 'null'
+  if (data === undefined) return 'undefined'
+  if (Array.isArray(data)) {
+    return debugBody({
+      type: 'array',
+      length: data.length,
+    })
+  }
+  if (typeof data !== 'object') {
+    return String(data)
+  }
+  const value = data as Record<string, unknown>
+  const workData =
+    value.data && typeof value.data === 'object'
+      ? (value.data as Record<string, unknown>)
+      : undefined
+  return debugBody({
+    type: 'object',
+    keys: Object.keys(value)
+      .sort()
+      .slice(0, 10),
+    hasEnvironmentId: typeof value.environment_id === 'string',
+    hasEnvironmentSecret: typeof value.environment_secret === 'string',
+    hasWorkId: typeof value.id === 'string',
+    workType: typeof workData?.type === 'string' ? workData.type : undefined,
+    hasSessionId: typeof workData?.id === 'string',
+  })
+}
+
 export function createBridgeApiClient(deps: BridgeApiDeps): BridgeApiClient {
   function debug(msg: string): void {
     deps.onDebug?.(msg)
@@ -74,18 +94,13 @@ export function createBridgeApiClient(deps: BridgeApiDeps): BridgeApiClient {
   const EMPTY_POLL_LOG_INTERVAL = 100
 
   function getHeaders(accessToken: string): Record<string, string> {
-    const headers: Record<string, string> = {
+    return {
       Authorization: `Bearer ${accessToken}`,
       'Content-Type': 'application/json',
       'anthropic-version': '2023-06-01',
       'anthropic-beta': BETA_HEADER,
       'x-environment-runner-version': deps.runnerVersion,
     }
-    const deviceToken = deps.getTrustedDeviceToken?.()
-    if (deviceToken) {
-      headers['X-Trusted-Device-Token'] = deviceToken
-    }
-    return headers
   }
 
   function resolveAuth(): string {
@@ -183,12 +198,14 @@ export function createBridgeApiClient(deps: BridgeApiDeps): BridgeApiClient {
 
       handleErrorStatus(response.status, response.data, 'Registration')
       debug(
-        `[bridge:api] POST /v1/environments/bridge -> ${response.status} environment_id=${response.data.environment_id}`,
+        `[bridge:api] POST /v1/environments/bridge -> ${response.status}`,
       )
       debug(
         `[bridge:api] >>> ${debugBody({ max_sessions: config.maxSessions, metadata: { worker_type: config.workerType } })}`,
       )
-      debug(`[bridge:api] <<< ${debugBody(response.data)}`)
+      debug(
+        `[bridge:api] <<< ${summarizeBridgeApiPayloadForDebug(response.data)}`,
+      )
       return response.data
     },
 
@@ -236,9 +253,11 @@ export function createBridgeApiClient(deps: BridgeApiDeps): BridgeApiClient {
       }
 
       debug(
-        `[bridge:api] GET .../work/poll -> ${response.status} workId=${response.data.id} type=${response.data.data?.type}${response.data.data?.id ? ` sessionId=${response.data.data.id}` : ''}`,
+        `[bridge:api] GET .../work/poll -> ${response.status} type=${response.data.data?.type ?? 'unknown'}`,
+      )
+      debug(
+        `[bridge:api] <<< ${summarizeBridgeApiPayloadForDebug(response.data)}`,
       )
-      debug(`[bridge:api] <<< ${debugBody(response.data)}`)
       return response.data
     },
 
@@ -442,7 +461,9 @@ export function createBridgeApiClient(deps: BridgeApiDeps): BridgeApiClient {
         `[bridge:api] POST /v1/sessions/${sessionId}/events -> ${response.status}`,
       )
       debug(`[bridge:api] >>> ${debugBody({ events: [event] })}`)
-      debug(`[bridge:api] <<< ${debugBody(response.data)}`)
+      debug(
+        `[bridge:api] <<< ${summarizeBridgeApiPayloadForDebug(response.data)}`,
+      )
     },
   }
 }

src/bridge/bridgeMain.ts

@@ -3,8 +3,6 @@ import { randomUUID } from 'crypto'
 import { tmpdir } from 'os'
 import { basename, join, resolve } from 'path'
 import { getRemoteSessionUrl } from '../constants/product.js'
-import { shutdownDatadog } from '../services/analytics/datadog.js'
-import { shutdown1PEventLogging } from '../services/analytics/firstPartyEventLogger.js'
 import { checkGate_CACHED_OR_BLOCKING } from '../services/analytics/growthbook.js'
 import {
   type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
@@ -30,12 +28,11 @@ import {
 import { formatDuration } from './bridgeStatusUtil.js'
 import { createBridgeLogger } from './bridgeUI.js'
 import { createCapacityWake } from './capacityWake.js'
-import { describeAxiosError } from './debugUtils.js'
+import { describeAxiosError, summarizeBridgeErrorForDebug } from './debugUtils.js'
 import { createTokenRefreshScheduler } from './jwtUtils.js'
 import { getPollIntervalConfig } from './pollConfig.js'
 import { toCompatSessionId, toInfraSessionId } from './sessionIdCompat.js'
 import { createSessionSpawner, safeFilenameId } from './sessionRunner.js'
-import { getTrustedDeviceToken } from './trustedDevice.js'
 import {
   BRIDGE_LOGIN_ERROR,
   type BridgeApiClient,
@@ -2042,16 +2039,15 @@ export async function bridgeMain(args: string[]): Promise<void> {
   )
   enableConfigs()
 
-  // Initialize analytics and error reporting sinks. The bridge bypasses the
-  // setup() init flow, so we call initSinks() directly to attach sinks here.
+  // Initialize shared sinks. The bridge bypasses setup(), so it attaches the
+  // local error-log sink directly here.
   const { initSinks } = await import('../utils/sinks.js')
   initSinks()
 
   // Gate-aware validation: --spawn / --capacity / --create-session-in-dir require
   // the multi-session gate. parseArgs has already validated flag combinations;
   // here we only check the gate since that requires an async GrowthBook call.
-  // Runs after enableConfigs() (GrowthBook cache reads global config) and after
-  // initSinks() so the denial event can be enqueued.
+  // Runs after enableConfigs() because GrowthBook cache reads global config.
   const multiSessionEnabled = await isMultiSessionSpawnEnabled()
   if (usedMultiSessionFeature && !multiSessionEnabled) {
     await logEventAsync('tengu_bridge_multi_session_denied', {
@@ -2059,14 +2055,6 @@ export async function bridgeMain(args: string[]): Promise<void> {
       used_capacity: parsedCapacity !== undefined,
       used_create_session_in_dir: parsedCreateSessionInDir !== undefined,
     })
-    // logEventAsync only enqueues — process.exit() discards buffered events.
-    // Flush explicitly, capped at 500ms to match gracefulShutdown.ts.
-    // (sleep() doesn't unref its timer, but process.exit() follows immediately
-    // so the ref'd timer can't delay shutdown.)
-    await Promise.race([
-      Promise.all([shutdown1PEventLogging(), shutdownDatadog()]),
-      sleep(500, undefined, { unref: true }),
-    ]).catch(() => {})
     // biome-ignore lint/suspicious/noConsole: intentional error output
     console.error(
       'Error: Multi-session Remote Control is not enabled for your account yet.',
@@ -2344,7 +2332,6 @@ export async function bridgeMain(args: string[]): Promise<void> {
     runnerVersion: MACRO.VERSION,
     onDebug: logForDebugging,
     onAuth401: handleOAuth401Error,
-    getTrustedDeviceToken,
   })
 
   // When resuming a session via --session-id, fetch it to learn its
@@ -2877,7 +2864,6 @@ export async function runBridgeHeadless(
     runnerVersion: MACRO.VERSION,
     onDebug: log,
     onAuth401: opts.onAuth401,
-    getTrustedDeviceToken,
   })
 
   let environmentId: string

src/bridge/bridgeMessaging.ts

@@ -23,9 +23,9 @@ import type { Message } from '../types/message.js'
 import { normalizeControlMessageKeys } from '../utils/controlMessageCompat.js'
 import { logForDebugging } from '../utils/debug.js'
 import { stripDisplayTagsAllowEmpty } from '../utils/displayTags.js'
-import { errorMessage } from '../utils/errors.js'
 import type { PermissionMode } from '../utils/permissions/PermissionMode.js'
 import { jsonParse } from '../utils/slowOperations.js'
+import { summarizeBridgeErrorForDebug } from './debugUtils.js'
 import type { ReplBridgeTransport } from './replBridgeTransport.js'
 
 // ─── Type guards ─────────────────────────────────────────────────────────────
@@ -179,13 +179,13 @@ export function handleIngressMessage(
     // receiving any frames, etc).
     if (uuid && recentInboundUUIDs.has(uuid)) {
       logForDebugging(
-        `[bridge:repl] Ignoring re-delivered inbound: type=${parsed.type} uuid=${uuid}`,
+        `[bridge:repl] Ignoring re-delivered inbound: type=${parsed.type}`,
       )
       return
     }
 
     logForDebugging(
-      `[bridge:repl] Ingress message type=${parsed.type}${uuid ? ` uuid=${uuid}` : ''}`,
+      `[bridge:repl] Ingress message type=${parsed.type}`,
     )
 
     if (parsed.type === 'user') {
@@ -202,7 +202,9 @@ export function handleIngressMessage(
     }
   } catch (err) {
     logForDebugging(
-      `[bridge:repl] Failed to parse ingress message: ${errorMessage(err)}`,
+      `[bridge:repl] Failed to parse ingress message: ${summarizeBridgeErrorForDebug(
+        err,
+      )}`,
     )
   }
 }
@@ -277,7 +279,7 @@ export function handleServerControlRequest(
     const event = { ...response, session_id: sessionId }
     void transport.write(event)
     logForDebugging(
-      `[bridge:repl] Rejected ${request.request.subtype} (outbound-only) request_id=${request.request_id}`,
+      `[bridge:repl] Rejected ${request.request.subtype} (outbound-only)`,
     )
     return
   }
@@ -386,7 +388,7 @@ export function handleServerControlRequest(
   const event = { ...response, session_id: sessionId }
   void transport.write(event)
   logForDebugging(
-    `[bridge:repl] Sent control_response for ${request.request.subtype} request_id=${request.request_id} result=${response.response.subtype}`,
+    `[bridge:repl] Sent control_response for ${request.request.subtype} result=${response.response.subtype}`,
   )
 }
 

src/bridge/codeSessionApi.ts

@@ -9,7 +9,7 @@
 
 import axios from 'axios'
 import { logForDebugging } from '../utils/debug.js'
-import { errorMessage } from '../utils/errors.js'
+import { toError } from '../utils/errors.js'
 import { jsonStringify } from '../utils/slowOperations.js'
 import { extractErrorDetail } from './debugUtils.js'
 
@@ -23,6 +23,62 @@ function oauthHeaders(accessToken: string): Record<string, string> {
   }
 }
 
+function summarizeCodeSessionResponseForDebug(data: unknown): string {
+  if (data === null) return 'null'
+  if (data === undefined) return 'undefined'
+  if (Array.isArray(data)) {
+    return jsonStringify({
+      payloadType: 'array',
+      length: data.length,
+    })
+  }
+  if (typeof data === 'object') {
+    const value = data as Record<string, unknown>
+    const session =
+      value.session && typeof value.session === 'object'
+        ? (value.session as Record<string, unknown>)
+        : undefined
+    return jsonStringify({
+      payloadType: 'object',
+      keys: Object.keys(value)
+        .sort()
+        .slice(0, 10),
+      hasSession: Boolean(session),
+      hasSessionId: typeof session?.id === 'string',
+      hasWorkerJwt: typeof value.worker_jwt === 'string',
+      hasApiBaseUrl: typeof value.api_base_url === 'string',
+      hasExpiresIn: typeof value.expires_in === 'number',
+      hasWorkerEpoch:
+        typeof value.worker_epoch === 'number' ||
+        typeof value.worker_epoch === 'string',
+    })
+  }
+  return typeof data
+}
+
+function summarizeCodeSessionErrorForDebug(err: unknown): string {
+  const error = toError(err)
+  const summary: Record<string, unknown> = {
+    errorType: error.constructor.name,
+    errorName: error.name,
+    hasMessage: error.message.length > 0,
+    hasStack: Boolean(error.stack),
+  }
+  if (err && typeof err === 'object') {
+    const errorObj = err as Record<string, unknown>
+    if (typeof errorObj.code === 'string' || typeof errorObj.code === 'number') {
+      summary.code = errorObj.code
+    }
+    if (errorObj.response && typeof errorObj.response === 'object') {
+      const response = errorObj.response as Record<string, unknown>
+      if (typeof response.status === 'number') {
+        summary.httpStatus = response.status
+      }
+    }
+  }
+  return jsonStringify(summary)
+}
+
 export async function createCodeSession(
   baseUrl: string,
   accessToken: string,
@@ -47,7 +103,9 @@ export async function createCodeSession(
     )
   } catch (err: unknown) {
     logForDebugging(
-      `[code-session] Session create request failed: ${errorMessage(err)}`,
+      `[code-session] Session create request failed: ${summarizeCodeSessionErrorForDebug(
+        err,
+      )}`,
     )
     return null
   }
@@ -72,7 +130,9 @@ export async function createCodeSession(
     !data.session.id.startsWith('cse_')
   ) {
     logForDebugging(
-      `[code-session] No session.id (cse_*) in response: ${jsonStringify(data).slice(0, 200)}`,
+      `[code-session] No session.id (cse_*) in response: ${summarizeCodeSessionResponseForDebug(
+        data,
+      )}`,
     )
     return null
   }
@@ -95,27 +155,24 @@ export async function fetchRemoteCredentials(
   baseUrl: string,
   accessToken: string,
   timeoutMs: number,
-  trustedDeviceToken?: string,
 ): Promise<RemoteCredentials | null> {
   const url = `${baseUrl}/v1/code/sessions/${sessionId}/bridge`
-  const headers = oauthHeaders(accessToken)
-  if (trustedDeviceToken) {
-    headers['X-Trusted-Device-Token'] = trustedDeviceToken
-  }
   let response
   try {
     response = await axios.post(
       url,
       {},
       {
-        headers,
+        headers: oauthHeaders(accessToken),
         timeout: timeoutMs,
         validateStatus: s => s < 500,
       },
     )
   } catch (err: unknown) {
     logForDebugging(
-      `[code-session] /bridge request failed: ${errorMessage(err)}`,
+      `[code-session] /bridge request failed: ${summarizeCodeSessionErrorForDebug(
+        err,
+      )}`,
     )
     return null
   }
@@ -141,7 +198,9 @@ export async function fetchRemoteCredentials(
     !('worker_epoch' in data)
   ) {
     logForDebugging(
-      `[code-session] /bridge response malformed (need worker_jwt, expires_in, api_base_url, worker_epoch): ${jsonStringify(data).slice(0, 200)}`,
+      `[code-session] /bridge response malformed (need worker_jwt, expires_in, api_base_url, worker_epoch): ${summarizeCodeSessionResponseForDebug(
+        data,
+      )}`,
     )
     return null
   }

src/bridge/debugUtils.ts

@@ -21,15 +21,10 @@ const SECRET_PATTERN = new RegExp(
   'g',
 )
 
-const REDACT_MIN_LENGTH = 16
-
 export function redactSecrets(s: string): string {
   return s.replace(SECRET_PATTERN, (_match, field: string, value: string) => {
-    if (value.length < REDACT_MIN_LENGTH) {
-      return `"${field}":"[REDACTED]"`
-    }
-    const redacted = `${value.slice(0, 8)}...${value.slice(-4)}`
-    return `"${field}":"${redacted}"`
+    void value
+    return `"${field}":"[REDACTED]"`
   })
 }
 
@@ -52,6 +47,73 @@ export function debugBody(data: unknown): string {
   return s.slice(0, DEBUG_MSG_LIMIT) + `... (${s.length} chars)`
 }
 
+function summarizeValueShapeForDebug(value: unknown): unknown {
+  if (value === null) return 'null'
+  if (value === undefined) return 'undefined'
+  if (Array.isArray(value)) {
+    return {
+      type: 'array',
+      length: value.length,
+    }
+  }
+  if (typeof value === 'object') {
+    return {
+      type: 'object',
+      keys: Object.keys(value as Record<string, unknown>)
+        .sort()
+        .slice(0, 10),
+    }
+  }
+  return typeof value
+}
+
+export function summarizeBridgeErrorForDebug(err: unknown): string {
+  const summary: Record<string, unknown> = {}
+
+  if (err instanceof Error) {
+    summary.errorType = err.constructor.name
+    summary.errorName = err.name
+    summary.hasMessage = err.message.length > 0
+    summary.hasStack = Boolean(err.stack)
+  } else {
+    summary.errorType = typeof err
+    summary.hasValue = err !== undefined && err !== null
+  }
+
+  if (err && typeof err === 'object') {
+    const errorObj = err as Record<string, unknown>
+    if (
+      typeof errorObj.code === 'string' ||
+      typeof errorObj.code === 'number'
+    ) {
+      summary.code = errorObj.code
+    }
+    if (
+      typeof errorObj.errno === 'string' ||
+      typeof errorObj.errno === 'number'
+    ) {
+      summary.errno = errorObj.errno
+    }
+    if (typeof errorObj.status === 'number') {
+      summary.status = errorObj.status
+    }
+    if (typeof errorObj.syscall === 'string') {
+      summary.syscall = errorObj.syscall
+    }
+    if (errorObj.response && typeof errorObj.response === 'object') {
+      const response = errorObj.response as Record<string, unknown>
+      if (typeof response.status === 'number') {
+        summary.httpStatus = response.status
+      }
+      if ('data' in response) {
+        summary.responseData = summarizeValueShapeForDebug(response.data)
+      }
+    }
+  }
+
+  return jsonStringify(summary)
+}
+
 /**
  * Extract a descriptive error message from an axios error (or any error).
  * For HTTP errors, appends the server's response body message if available,

src/bridge/jwtUtils.ts

@@ -107,7 +107,7 @@ export function createTokenRefreshScheduler({
       // (such as the follow-up refresh set by doRefresh) so the refresh
       // chain is not broken.
       logForDebugging(
-        `[${label}:token] Could not decode JWT expiry for sessionId=${sessionId}, token prefix=${token.slice(0, 15)}…, keeping existing timer`,
+        `[${label}:token] Could not decode JWT expiry for sessionId=${sessionId}, keeping existing timer`,
       )
       return
     }
@@ -209,7 +209,7 @@ export function createTokenRefreshScheduler({
     failureCounts.delete(sessionId)
 
     logForDebugging(
-      `[${label}:token] Refreshing token for sessionId=${sessionId}: new token prefix=${oauthToken.slice(0, 15)}…`,
+      `[${label}:token] Refreshing token for sessionId=${sessionId}`,
     )
     logEvent('tengu_bridge_token_refreshed', {})
     onRefresh(sessionId, oauthToken)

src/bridge/remoteBridgeCore.ts

@@ -38,7 +38,6 @@ import { buildCCRv2SdkUrl } from './workSecret.js'
 import { toCompatSessionId } from './sessionIdCompat.js'
 import { FlushGate } from './flushGate.js'
 import { createTokenRefreshScheduler } from './jwtUtils.js'
-import { getTrustedDeviceToken } from './trustedDevice.js'
 import {
   getEnvLessBridgeConfig,
   type EnvLessBridgeConfig,
@@ -51,7 +50,10 @@ import {
   extractTitleText,
   BoundedUUIDSet,
 } from './bridgeMessaging.js'
-import { logBridgeSkip } from './debugUtils.js'
+import {
+  logBridgeSkip,
+  summarizeBridgeErrorForDebug,
+} from './debugUtils.js'
 import { logForDebugging } from '../utils/debug.js'
 import { logForDiagnosticsNoPII } from '../utils/diagLogs.js'
 import { isInProtectedNamespace } from '../utils/envUtils.js'
@@ -182,7 +184,7 @@ export async function initEnvLessBridgeCore(
     return null
   }
   const sessionId: string = createdSessionId
-  logForDebugging(`[remote-bridge] Created session ${sessionId}`)
+  logForDebugging('[remote-bridge] Created remote bridge session')
   logForDiagnosticsNoPII('info', 'bridge_repl_v2_session_created')
 
   // ── 2. Fetch bridge credentials (POST /bridge → worker_jwt, expires_in, api_base_url) ──
@@ -215,7 +217,7 @@ export async function initEnvLessBridgeCore(
 
   // ── 3. Build v2 transport (SSETransport + CCRClient) ────────────────────
   const sessionUrl = buildCCRv2SdkUrl(credentials.api_base_url, sessionId)
-  logForDebugging(`[remote-bridge] v2 session URL: ${sessionUrl}`)
+  logForDebugging('[remote-bridge] Configured v2 session transport endpoint')
 
   let transport: ReplBridgeTransport
   try {
@@ -236,10 +238,12 @@ export async function initEnvLessBridgeCore(
     })
   } catch (err) {
     logForDebugging(
-      `[remote-bridge] v2 transport setup failed: ${errorMessage(err)}`,
+      `[remote-bridge] v2 transport setup failed: ${summarizeBridgeErrorForDebug(
+        err,
+      )}`,
       { level: 'error' },
     )
-    onStateChange?.('failed', `Transport setup failed: ${errorMessage(err)}`)
+    onStateChange?.('failed', 'Transport setup failed')
     logBridgeSkip('v2_transport_setup_failed', undefined, true)
     void archiveSession(
       sessionId,
@@ -357,7 +361,9 @@ export async function initEnvLessBridgeCore(
           )
         } catch (err) {
           logForDebugging(
-            `[remote-bridge] Proactive refresh rebuild failed: ${errorMessage(err)}`,
+            `[remote-bridge] Proactive refresh rebuild failed: ${summarizeBridgeErrorForDebug(
+              err,
+            )}`,
             { level: 'error' },
           )
           logForDiagnosticsNoPII(
@@ -365,7 +371,7 @@ export async function initEnvLessBridgeCore(
             'bridge_repl_v2_proactive_refresh_failed',
           )
           if (!tornDown) {
-            onStateChange?.('failed', `Refresh failed: ${errorMessage(err)}`)
+            onStateChange?.('failed', 'Refresh failed')
           }
         } finally {
           authRecoveryInFlight = false
@@ -395,9 +401,13 @@ export async function initEnvLessBridgeCore(
         // (Same guard pattern as replBridge.ts:1119.)
         const flushTransport = transport
         void flushHistory(initialMessages)
-          .catch(e =>
-            logForDebugging(`[remote-bridge] flushHistory failed: ${e}`),
-          )
+          .catch(e => {
+            logForDebugging(
+              `[remote-bridge] flushHistory failed: ${summarizeBridgeErrorForDebug(
+                e,
+              )}`,
+            )
+          })
           .finally(() => {
             // authRecoveryInFlight catches the v1-vs-v2 asymmetry: v1 nulls
             // transport synchronously in setOnClose (replBridge.ts:1175), so
@@ -577,12 +587,14 @@ export async function initEnvLessBridgeCore(
       logForDebugging('[remote-bridge] Transport rebuilt after 401')
     } catch (err) {
       logForDebugging(
-        `[remote-bridge] 401 recovery failed: ${errorMessage(err)}`,
+        `[remote-bridge] 401 recovery failed: ${summarizeBridgeErrorForDebug(
+          err,
+        )}`,
         { level: 'error' },
       )
       logForDiagnosticsNoPII('error', 'bridge_repl_v2_jwt_refresh_failed')
       if (!tornDown) {
-        onStateChange?.('failed', `JWT refresh failed: ${errorMessage(err)}`)
+        onStateChange?.('failed', 'JWT refresh failed')
       }
     } finally {
       authRecoveryInFlight = false
@@ -707,7 +719,9 @@ export async function initEnvLessBridgeCore(
         )
       } catch (err) {
         logForDebugging(
-          `[remote-bridge] Teardown 401 retry threw: ${errorMessage(err)}`,
+          `[remote-bridge] Teardown 401 retry threw: ${summarizeBridgeErrorForDebug(
+            err,
+          )}`,
           { level: 'error' },
         )
       }
@@ -824,7 +838,7 @@ export async function initEnvLessBridgeCore(
     sendControlRequest(request: SDKControlRequest) {
       if (authRecoveryInFlight) {
         logForDebugging(
-          `[remote-bridge] Dropping control_request during 401 recovery: ${request.request_id}`,
+          '[remote-bridge] Dropping control_request during 401 recovery',
         )
         return
       }
@@ -833,9 +847,7 @@ export async function initEnvLessBridgeCore(
         transport.reportState('requires_action')
       }
       void transport.write(event)
-      logForDebugging(
-        `[remote-bridge] Sent control_request request_id=${request.request_id}`,
-      )
+      logForDebugging('[remote-bridge] Sent control_request')
     },
     sendControlResponse(response: SDKControlResponse) {
       if (authRecoveryInFlight) {
@@ -852,7 +864,7 @@ export async function initEnvLessBridgeCore(
     sendControlCancelRequest(requestId: string) {
       if (authRecoveryInFlight) {
         logForDebugging(
-          `[remote-bridge] Dropping control_cancel_request during 401 recovery: ${requestId}`,
+          '[remote-bridge] Dropping control_cancel_request during 401 recovery',
         )
         return
       }
@@ -866,9 +878,7 @@ export async function initEnvLessBridgeCore(
       // those paths, so without this the server stays on requires_action.
       transport.reportState('running')
       void transport.write(event)
-      logForDebugging(
-        `[remote-bridge] Sent control_cancel_request request_id=${requestId}`,
-      )
+      logForDebugging('[remote-bridge] Sent control_cancel_request')
     },
     sendResult() {
       if (authRecoveryInFlight) {
@@ -877,7 +887,7 @@ export async function initEnvLessBridgeCore(
       }
       transport.reportState('idle')
       void transport.write(makeResultMessage(sessionId))
-      logForDebugging(`[remote-bridge] Sent result`)
+      logForDebugging('[remote-bridge] Sent result')
     },
     async teardown() {
       unregister()
@@ -925,9 +935,8 @@ import {
 } from './codeSessionApi.js'
 import { getBridgeBaseUrlOverride } from './bridgeConfig.js'
 
-// CLI-side wrapper that applies the CLAUDE_BRIDGE_BASE_URL dev override and
-// injects the trusted-device token (both are env/GrowthBook reads that the
-// SDK-facing codeSessionApi.ts export must stay free of).
+// CLI-side wrapper that applies the CLAUDE_BRIDGE_BASE_URL dev override while
+// keeping the SDK-facing codeSessionApi.ts export free of CLI config reads.
 export async function fetchRemoteCredentials(
   sessionId: string,
   baseUrl: string,
@@ -939,7 +948,6 @@ export async function fetchRemoteCredentials(
     baseUrl,
     accessToken,
     timeoutMs,
-    getTrustedDeviceToken(),
   )
   if (!creds) return null
   return getBridgeBaseUrlOverride()
@@ -995,12 +1003,13 @@ async function archiveSession(
       },
     )
     logForDebugging(
-      `[remote-bridge] Archive ${compatId} status=${response.status}`,
+      `[remote-bridge] Archive status=${response.status}`,
     )
     return response.status
   } catch (err) {
-    const msg = errorMessage(err)
-    logForDebugging(`[remote-bridge] Archive failed: ${msg}`)
+    logForDebugging(
+      `[remote-bridge] Archive failed: ${summarizeBridgeErrorForDebug(err)}`,
+    )
     return axios.isAxiosError(err) && err.code === 'ECONNABORTED'
       ? 'timeout'
       : 'error'

src/bridge/replBridge.ts

@@ -30,7 +30,6 @@ import {
 } from './workSecret.js'
 import { toCompatSessionId, toInfraSessionId } from './sessionIdCompat.js'
 import { updateSessionBridgeId } from '../utils/concurrentSessions.js'
-import { getTrustedDeviceToken } from './trustedDevice.js'
 import { HybridTransport } from '../cli/transports/HybridTransport.js'
 import {
   type ReplBridgeTransport,
@@ -44,6 +43,7 @@ import {
   describeAxiosError,
   extractHttpStatus,
   logBridgeSkip,
+  summarizeBridgeErrorForDebug,
 } from './debugUtils.js'
 import type { Message } from '../types/message.js'
 import type { SDKMessage } from '../entrypoints/agentSdkTypes.ts'
@@ -304,7 +304,7 @@ export async function initBridgeCore(
   const prior = rawPrior?.source === 'repl' ? rawPrior : null
 
   logForDebugging(
-    `[bridge:repl] initBridgeCore #${seq} starting (initialMessages=${initialMessages?.length ?? 0}${prior ? ` perpetual prior=env:${prior.environmentId}` : ''})`,
+    `[bridge:repl] initBridgeCore #${seq} starting (initialMessages=${initialMessages?.length ?? 0}${prior ? ' perpetual prior pointer present' : ''})`,
   )
 
   // 5. Register bridge environment
@@ -314,7 +314,6 @@ export async function initBridgeCore(
     runnerVersion: MACRO.VERSION,
     onDebug: logForDebugging,
     onAuth401,
-    getTrustedDeviceToken,
   })
   // Ant-only: interpose so /bridge-kick can inject poll/register/heartbeat
   // failures. Zero cost in external builds (rawApi passes through unchanged).
@@ -344,7 +343,9 @@ export async function initBridgeCore(
   } catch (err) {
     logBridgeSkip(
       'registration_failed',
-      `[bridge:repl] Environment registration failed: ${errorMessage(err)}`,
+      `[bridge:repl] Environment registration failed: ${summarizeBridgeErrorForDebug(
+        err,
+      )}`,
     )
     // Stale pointer may be the cause (expired/deleted env) — clear it so
     // the next start doesn't retry the same dead ID.
@@ -355,7 +356,7 @@ export async function initBridgeCore(
     return null
   }
 
-  logForDebugging(`[bridge:repl] Environment registered: ${environmentId}`)
+  logForDebugging('[bridge:repl] Environment registered')
   logForDiagnosticsNoPII('info', 'bridge_repl_env_registered')
   logEvent('tengu_bridge_repl_env_registered', {})
 
@@ -373,7 +374,7 @@ export async function initBridgeCore(
   ): Promise<boolean> {
     if (environmentId !== requestedEnvId) {
       logForDebugging(
-        `[bridge:repl] Env mismatch (requested ${requestedEnvId}, got ${environmentId}) — cannot reconnect in place`,
+        '[bridge:repl] Env mismatch — cannot reconnect in place',
       )
       return false
     }
@@ -391,13 +392,13 @@ export async function initBridgeCore(
     for (const id of candidates) {
       try {
         await api.reconnectSession(environmentId, id)
-        logForDebugging(
-          `[bridge:repl] Reconnected session ${id} in place on env ${environmentId}`,
-        )
+        logForDebugging('[bridge:repl] Reconnected existing session in place')
         return true
       } catch (err) {
         logForDebugging(
-          `[bridge:repl] reconnectSession(${id}) failed: ${errorMessage(err)}`,
+          `[bridge:repl] reconnectSession failed: ${summarizeBridgeErrorForDebug(
+            err,
+          )}`,
         )
       }
     }
@@ -681,7 +682,9 @@ export async function initBridgeCore(
     } catch (err) {
       bridgeConfig.reuseEnvironmentId = undefined
       logForDebugging(
-        `[bridge:repl] Environment re-registration failed: ${errorMessage(err)}`,
+        `[bridge:repl] Environment re-registration failed: ${summarizeBridgeErrorForDebug(
+          err,
+        )}`,
       )
       return false
     }
@@ -690,7 +693,7 @@ export async function initBridgeCore(
     bridgeConfig.reuseEnvironmentId = undefined
 
     logForDebugging(
-      `[bridge:repl] Re-registered: requested=${requestedEnvId} got=${environmentId}`,
+      '[bridge:repl] Re-registered environment',
     )
 
     // Bail out if teardown started while we were registering
@@ -986,7 +989,7 @@ export async function initBridgeCore(
       injectFault: injectBridgeFault,
       wakePollLoop,
       describe: () =>
-        `env=${environmentId} session=${currentSessionId} transport=${transport?.getStateLabel() ?? 'null'} workId=${currentWorkId ?? 'null'}`,
+        `transport=${transport?.getStateLabel() ?? 'null'} hasSession=${Boolean(currentSessionId)} hasWork=${Boolean(currentWorkId)}`,
     })
   }
 
@@ -1040,7 +1043,9 @@ export async function initBridgeCore(
           .stopWork(environmentId, currentWorkId, false)
           .catch((e: unknown) => {
             logForDebugging(
-              `[bridge:repl] stopWork after heartbeat fatal: ${errorMessage(e)}`,
+              `[bridge:repl] stopWork after heartbeat fatal: ${summarizeBridgeErrorForDebug(
+                e,
+              )}`,
             )
           })
       }
@@ -1367,7 +1372,7 @@ export async function initBridgeCore(
         const sessionUrl = buildCCRv2SdkUrl(baseUrl, workSessionId)
         const thisGen = v2Generation
         logForDebugging(
-          `[bridge:repl] CCR v2: sessionUrl=${sessionUrl} session=${workSessionId} gen=${thisGen}`,
+          `[bridge:repl] CCR v2: creating transport gen=${thisGen}`,
         )
         void createV2ReplTransport({
           sessionUrl,
@@ -1401,7 +1406,9 @@ export async function initBridgeCore(
           },
           (err: unknown) => {
             logForDebugging(
-              `[bridge:repl] CCR v2: createV2ReplTransport failed: ${errorMessage(err)}`,
+              `[bridge:repl] CCR v2: createV2ReplTransport failed: ${summarizeBridgeErrorForDebug(
+                err,
+              )}`,
               { level: 'error' },
             )
             logEvent('tengu_bridge_repl_ccr_v2_init_failed', {})
@@ -1416,7 +1423,9 @@ export async function initBridgeCore(
                 .stopWork(environmentId, currentWorkId, false)
                 .catch((e: unknown) => {
                   logForDebugging(
-                    `[bridge:repl] stopWork after v2 init failure: ${errorMessage(e)}`,
+                    `[bridge:repl] stopWork after v2 init failure: ${summarizeBridgeErrorForDebug(
+                      e,
+                    )}`,
                   )
                 })
               currentWorkId = null
@@ -1437,10 +1446,8 @@ export async function initBridgeCore(
         // secret. refreshHeaders picks up the latest OAuth token on each
         // WS reconnect attempt.
         const wsUrl = buildSdkUrl(sessionIngressUrl, workSessionId)
-        logForDebugging(`[bridge:repl] Ingress URL: ${wsUrl}`)
-        logForDebugging(
-          `[bridge:repl] Creating HybridTransport: session=${workSessionId}`,
-        )
+        logForDebugging('[bridge:repl] Using session ingress WebSocket endpoint')
+        logForDebugging('[bridge:repl] Creating HybridTransport')
         // v1OauthToken was validated non-null above (we'd have returned early).
         const oauthToken = v1OauthToken ?? ''
         wireTransport(
@@ -1525,7 +1532,9 @@ export async function initBridgeCore(
           logForDebugging('[bridge:repl] keep_alive sent')
           void transport.write({ type: 'keep_alive' }).catch((err: unknown) => {
             logForDebugging(
-              `[bridge:repl] keep_alive write failed: ${errorMessage(err)}`,
+              `[bridge:repl] keep_alive write failed: ${summarizeBridgeErrorForDebug(
+                err,
+              )}`,
             )
           })
         }, keepAliveIntervalMs)
@@ -1538,15 +1547,13 @@ export async function initBridgeCore(
   doTeardownImpl = async (): Promise<void> => {
     if (teardownStarted) {
       logForDebugging(
-        `[bridge:repl] Teardown already in progress, skipping duplicate call env=${environmentId} session=${currentSessionId}`,
+        '[bridge:repl] Teardown already in progress, skipping duplicate call',
       )
       return
     }
     teardownStarted = true
     const teardownStart = Date.now()
-    logForDebugging(
-      `[bridge:repl] Teardown starting: env=${environmentId} session=${currentSessionId} workId=${currentWorkId ?? 'none'} transportState=${transport?.getStateLabel() ?? 'null'}`,
-    )
+    logForDebugging('[bridge:repl] Teardown starting')
 
     if (pointerRefreshTimer !== null) {
       clearInterval(pointerRefreshTimer)
@@ -1595,7 +1602,7 @@ export async function initBridgeCore(
         source: 'repl',
       })
       logForDebugging(
-        `[bridge:repl] Teardown (perpetual): leaving env=${environmentId} session=${currentSessionId} alive on server, duration=${Date.now() - teardownStart}ms`,
+        `[bridge:repl] Teardown (perpetual): leaving bridge session alive on server, duration=${Date.now() - teardownStart}ms`,
       )
       return
     }
@@ -1621,7 +1628,9 @@ export async function initBridgeCore(
           })
           .catch((err: unknown) => {
             logForDebugging(
-              `[bridge:repl] Teardown stopWork failed: ${errorMessage(err)}`,
+              `[bridge:repl] Teardown stopWork failed: ${summarizeBridgeErrorForDebug(
+                err,
+              )}`,
             )
           })
       : Promise.resolve()
@@ -1638,7 +1647,9 @@ export async function initBridgeCore(
 
     await api.deregisterEnvironment(environmentId).catch((err: unknown) => {
       logForDebugging(
-        `[bridge:repl] Teardown deregister failed: ${errorMessage(err)}`,
+        `[bridge:repl] Teardown deregister failed: ${summarizeBridgeErrorForDebug(
+          err,
+        )}`,
       )
     })
 
@@ -1648,16 +1659,14 @@ export async function initBridgeCore(
     await clearBridgePointer(dir)
 
     logForDebugging(
-      `[bridge:repl] Teardown complete: env=${environmentId} duration=${Date.now() - teardownStart}ms`,
+      `[bridge:repl] Teardown complete: duration=${Date.now() - teardownStart}ms`,
     )
   }
 
   // 8. Register cleanup for graceful shutdown
   const unregister = registerCleanup(() => doTeardownImpl?.())
 
-  logForDebugging(
-    `[bridge:repl] Ready: env=${environmentId} session=${currentSessionId}`,
-  )
+  logForDebugging('[bridge:repl] Ready')
   onStateChange?.('ready')
 
   return {
@@ -1715,7 +1724,7 @@ export async function initBridgeCore(
       if (!transport) {
         const types = filtered.map(m => m.type).join(',')
         logForDebugging(
-          `[bridge:repl] Transport not configured, dropping ${filtered.length} message(s) [${types}] for session=${currentSessionId}`,
+          `[bridge:repl] Transport not configured, dropping ${filtered.length} message(s) [${types}]`,
           { level: 'warn' },
         )
         return
@@ -1750,7 +1759,7 @@ export async function initBridgeCore(
       if (filtered.length === 0) return
       if (!transport) {
         logForDebugging(
-          `[bridge:repl] Transport not configured, dropping ${filtered.length} SDK message(s) for session=${currentSessionId}`,
+          `[bridge:repl] Transport not configured, dropping ${filtered.length} SDK message(s)`,
           { level: 'warn' },
         )
         return
@@ -1770,9 +1779,7 @@ export async function initBridgeCore(
       }
       const event = { ...request, session_id: currentSessionId }
       void transport.write(event)
-      logForDebugging(
-        `[bridge:repl] Sent control_request request_id=${request.request_id}`,
-      )
+      logForDebugging('[bridge:repl] Sent control_request')
     },
     sendControlResponse(response: SDKControlResponse) {
       if (!transport) {
@@ -1798,21 +1805,17 @@ export async function initBridgeCore(
         session_id: currentSessionId,
       }
       void transport.write(event)
-      logForDebugging(
-        `[bridge:repl] Sent control_cancel_request request_id=${requestId}`,
-      )
+      logForDebugging('[bridge:repl] Sent control_cancel_request')
     },
     sendResult() {
       if (!transport) {
         logForDebugging(
-          `[bridge:repl] sendResult: skipping, transport not configured session=${currentSessionId}`,
+          '[bridge:repl] sendResult: skipping, transport not configured',
         )
         return
       }
       void transport.write(makeResultMessage(currentSessionId))
-      logForDebugging(
-        `[bridge:repl] Sent result for session=${currentSessionId}`,
-      )
+      logForDebugging('[bridge:repl] Sent result')
     },
     async teardown() {
       unregister()
@@ -1905,7 +1908,7 @@ async function startWorkPollLoop({
   const MAX_ENVIRONMENT_RECREATIONS = 3
 
   logForDebugging(
-    `[bridge:repl] Starting work poll loop for env=${getCredentials().environmentId}`,
+    '[bridge:repl] Starting work poll loop',
   )
 
   let consecutiveErrors = 0
@@ -2008,7 +2011,9 @@ async function startWorkPollLoop({
                 )
               } catch (err) {
                 logForDebugging(
-                  `[bridge:repl:heartbeat] Failed: ${errorMessage(err)}`,
+                  `[bridge:repl:heartbeat] Failed: ${summarizeBridgeErrorForDebug(
+                    err,
+                  )}`,
                 )
                 if (err instanceof BridgeFatalError) {
                   cap.cleanup()
@@ -2126,7 +2131,9 @@ async function startWorkPollLoop({
         secret = decodeWorkSecret(work.secret)
       } catch (err) {
         logForDebugging(
-          `[bridge:repl] Failed to decode work secret: ${errorMessage(err)}`,
+          `[bridge:repl] Failed to decode work secret: ${summarizeBridgeErrorForDebug(
+            err,
+          )}`,
         )
         logEvent('tengu_bridge_repl_work_secret_failed', {})
         // Can't ack (needs the JWT we failed to decode). stopWork uses OAuth.
@@ -2137,12 +2144,14 @@ async function startWorkPollLoop({
 
       // Explicitly acknowledge to prevent redelivery. Non-fatal on failure:
       // server re-delivers, and the onWorkReceived callback handles dedup.
-      logForDebugging(`[bridge:repl] Acknowledging workId=${work.id}`)
+      logForDebugging('[bridge:repl] Acknowledging work item')
       try {
         await api.acknowledgeWork(envId, work.id, secret.session_ingress_token)
       } catch (err) {
         logForDebugging(
-          `[bridge:repl] Acknowledge failed workId=${work.id}: ${errorMessage(err)}`,
+          `[bridge:repl] Acknowledge failed: ${summarizeBridgeErrorForDebug(
+            err,
+          )}`,
         )
       }
 
@@ -2194,7 +2203,7 @@ async function startWorkPollLoop({
         const currentEnvId = getCredentials().environmentId
         if (envId !== currentEnvId) {
           logForDebugging(
-            `[bridge:repl] Stale poll error for old env=${envId}, current env=${currentEnvId} — skipping onEnvironmentLost`,
+            '[bridge:repl] Stale poll error for superseded environment — skipping onEnvironmentLost',
           )
           consecutiveErrors = 0
           firstErrorTime = null
@@ -2240,9 +2249,7 @@ async function startWorkPollLoop({
           consecutiveErrors = 0
           firstErrorTime = null
           onStateChange?.('ready')
-          logForDebugging(
-            `[bridge:repl] Re-registered environment: ${newCreds.environmentId}`,
-          )
+          logForDebugging('[bridge:repl] Re-registered environment')
           continue
         }
 
@@ -2378,7 +2385,7 @@ async function startWorkPollLoop({
   }
 
   logForDebugging(
-    `[bridge:repl] Work poll loop ended (aborted=${signal.aborted}) env=${getCredentials().environmentId}`,
+    `[bridge:repl] Work poll loop ended (aborted=${signal.aborted})`,
   )
 }
 

src/bridge/replBridgeTransport.ts

@@ -3,9 +3,9 @@ import { CCRClient } from '../cli/transports/ccrClient.js'
 import type { HybridTransport } from '../cli/transports/HybridTransport.js'
 import { SSETransport } from '../cli/transports/SSETransport.js'
 import { logForDebugging } from '../utils/debug.js'
-import { errorMessage } from '../utils/errors.js'
 import { updateSessionIngressAuthToken } from '../utils/sessionIngressAuth.js'
 import type { SessionState } from '../utils/sessionState.js'
+import { summarizeBridgeErrorForDebug } from './debugUtils.js'
 import { registerWorker } from './workSecret.js'
 
 /**
@@ -54,8 +54,6 @@ export type ReplBridgeTransport = {
    * (user watches the REPL locally); multi-session worker callers do.
    */
   reportState(state: SessionState): void
-  /** PUT /worker external_metadata (v2 only; v1 is a no-op). */
-  reportMetadata(metadata: Record<string, unknown>): void
   /**
    * POST /worker/events/{id}/delivery (v2 only; v1 is a no-op). Populates
    * CCR's processing_at/processed_at columns. `received` is auto-fired by
@@ -96,7 +94,6 @@ export function createV1ReplTransport(
       return hybrid.droppedBatchCount
     },
     reportState: () => {},
-    reportMetadata: () => {},
     reportDelivery: () => {},
     flush: () => Promise.resolve(),
   }
@@ -182,7 +179,7 @@ export async function createV2ReplTransport(opts: {
 
   const epoch = opts.epoch ?? (await registerWorker(sessionUrl, ingressToken))
   logForDebugging(
-    `[bridge:repl] CCR v2: worker sessionId=${sessionId} epoch=${epoch}${opts.epoch !== undefined ? ' (from /bridge)' : ' (via registerWorker)'}`,
+    `[bridge:repl] CCR v2: worker registered epoch=${epoch}${opts.epoch !== undefined ? ' (from /bridge)' : ' (via registerWorker)'}`,
   )
 
   // Derive SSE stream URL. Same logic as transportUtils.ts:26-33 but
@@ -220,7 +217,9 @@ export async function createV2ReplTransport(opts: {
         onCloseCb?.(4090)
       } catch (closeErr: unknown) {
         logForDebugging(
-          `[bridge:repl] CCR v2: error during epoch-mismatch cleanup: ${errorMessage(closeErr)}`,
+          `[bridge:repl] CCR v2: error during epoch-mismatch cleanup: ${summarizeBridgeErrorForDebug(
+            closeErr,
+          )}`,
           { level: 'error' },
         )
       }
@@ -324,9 +323,6 @@ export async function createV2ReplTransport(opts: {
     reportState(state) {
       ccr.reportState(state)
     },
-    reportMetadata(metadata) {
-      ccr.reportMetadata(metadata)
-    },
     reportDelivery(eventId, status) {
       ccr.reportDelivery(eventId, status)
     },
@@ -353,7 +349,9 @@ export async function createV2ReplTransport(opts: {
         },
         (err: unknown) => {
           logForDebugging(
-            `[bridge:repl] CCR v2 initialize failed: ${errorMessage(err)}`,
+            `[bridge:repl] CCR v2 initialize failed: ${summarizeBridgeErrorForDebug(
+              err,
+            )}`,
             { level: 'error' },
           )
           // Close transport resources and notify replBridge via onClose

src/bridge/sessionRunner.ts

@@ -1,10 +1,9 @@
 import { type ChildProcess, spawn } from 'child_process'
 import { createWriteStream, type WriteStream } from 'fs'
 import { tmpdir } from 'os'
-import { dirname, join } from 'path'
+import { basename, dirname, join } from 'path'
 import { createInterface } from 'readline'
 import { jsonParse, jsonStringify } from '../utils/slowOperations.js'
-import { debugTruncate } from './debugUtils.js'
 import type {
   SessionActivity,
   SessionDoneStatus,
@@ -25,6 +24,61 @@ export function safeFilenameId(id: string): string {
   return id.replace(/[^a-zA-Z0-9_-]/g, '_')
 }
 
+function summarizeSessionRunnerErrorForDebug(error: unknown): string {
+  return jsonStringify({
+    errorType:
+      error instanceof Error ? error.constructor.name : typeof error,
+    errorName: error instanceof Error ? error.name : undefined,
+    hasMessage: error instanceof Error ? error.message.length > 0 : false,
+    hasStack: error instanceof Error ? Boolean(error.stack) : false,
+  })
+}
+
+function summarizeSessionRunnerFrameForDebug(data: string): string {
+  try {
+    const parsed = jsonParse(data)
+    if (parsed && typeof parsed === 'object') {
+      const value = parsed as Record<string, unknown>
+      return jsonStringify({
+        frameType: typeof value.type === 'string' ? value.type : 'unknown',
+        subtype:
+          typeof value.subtype === 'string'
+            ? value.subtype
+            : value.response &&
+                typeof value.response === 'object' &&
+                typeof (value.response as Record<string, unknown>).subtype ===
+                  'string'
+              ? (value.response as Record<string, unknown>).subtype
+              : value.request &&
+                  typeof value.request === 'object' &&
+                  typeof (value.request as Record<string, unknown>).subtype ===
+                    'string'
+                ? (value.request as Record<string, unknown>).subtype
+                : undefined,
+        hasUuid: typeof value.uuid === 'string',
+        length: data.length,
+      })
+    }
+  } catch {
+    // fall through to raw-length summary
+  }
+  return jsonStringify({
+    frameType: 'unparsed',
+    length: data.length,
+  })
+}
+
+function summarizeSessionRunnerArgsForDebug(args: string[]): string {
+  return jsonStringify({
+    argCount: args.length,
+    hasSdkUrl: args.includes('--sdk-url'),
+    hasSessionId: args.includes('--session-id'),
+    hasDebugFile: args.includes('--debug-file'),
+    hasVerbose: args.includes('--verbose'),
+    hasPermissionMode: args.includes('--permission-mode'),
+  })
+}
+
 /**
  * A control_request emitted by the child CLI when it needs permission to
  * execute a **specific** tool invocation (not a general capability check).
@@ -144,9 +198,7 @@ function extractActivities(
             summary,
             timestamp: now,
           })
-          onDebug(
-            `[bridge:activity] sessionId=${sessionId} tool_use name=${name} ${inputPreview(input)}`,
-          )
+          onDebug(`[bridge:activity] tool_use name=${name}`)
         } else if (b.type === 'text') {
           const text = (b.text as string) ?? ''
           if (text.length > 0) {
@@ -156,7 +208,7 @@ function extractActivities(
               timestamp: now,
             })
             onDebug(
-              `[bridge:activity] sessionId=${sessionId} text "${text.slice(0, 100)}"`,
+              `[bridge:activity] text length=${text.length}`,
             )
           }
         }
@@ -171,9 +223,7 @@ function extractActivities(
           summary: 'Session completed',
           timestamp: now,
         })
-        onDebug(
-          `[bridge:activity] sessionId=${sessionId} result subtype=success`,
-        )
+        onDebug('[bridge:activity] result subtype=success')
       } else if (subtype) {
         const errors = msg.errors as string[] | undefined
         const errorSummary = errors?.[0] ?? `Error: ${subtype}`
@@ -182,13 +232,9 @@ function extractActivities(
           summary: errorSummary,
           timestamp: now,
         })
-        onDebug(
-          `[bridge:activity] sessionId=${sessionId} result subtype=${subtype} error="${errorSummary}"`,
-        )
+        onDebug(`[bridge:activity] result subtype=${subtype}`)
       } else {
-        onDebug(
-          `[bridge:activity] sessionId=${sessionId} result subtype=undefined`,
-        )
+        onDebug('[bridge:activity] result subtype=undefined')
       }
       break
     }
@@ -233,18 +279,6 @@ function extractUserMessageText(
   return text ? text : undefined
 }
 
-/** Build a short preview of tool input for debug logging. */
-function inputPreview(input: Record<string, unknown>): string {
-  const parts: string[] = []
-  for (const [key, val] of Object.entries(input)) {
-    if (typeof val === 'string') {
-      parts.push(`${key}="${val.slice(0, 100)}"`)
-    }
-    if (parts.length >= 3) break
-  }
-  return parts.join(' ')
-}
-
 export function createSessionSpawner(deps: SessionSpawnerDeps): SessionSpawner {
   return {
     spawn(opts: SessionSpawnOpts, dir: string): SessionHandle {
@@ -277,11 +311,15 @@ export function createSessionSpawner(deps: SessionSpawnerDeps): SessionSpawner {
         transcriptStream = createWriteStream(transcriptPath, { flags: 'a' })
         transcriptStream.on('error', err => {
           deps.onDebug(
-            `[bridge:session] Transcript write error: ${err.message}`,
+            `[bridge:session] Transcript write error: ${summarizeSessionRunnerErrorForDebug(
+              err,
+            )}`,
           )
           transcriptStream = null
         })
-        deps.onDebug(`[bridge:session] Transcript log: ${transcriptPath}`)
+        deps.onDebug(
+          `[bridge:session] Transcript log configured (${basename(transcriptPath)})`,
+        )
       }
 
       const args = [
@@ -323,11 +361,15 @@ export function createSessionSpawner(deps: SessionSpawnerDeps): SessionSpawner {
       }
 
       deps.onDebug(
-        `[bridge:session] Spawning sessionId=${opts.sessionId} sdkUrl=${opts.sdkUrl} accessToken=${opts.accessToken ? 'present' : 'MISSING'}`,
+        `[bridge:session] Spawning child session process (accessToken=${opts.accessToken ? 'present' : 'MISSING'})`,
+      )
+      deps.onDebug(
+        `[bridge:session] Child args: ${summarizeSessionRunnerArgsForDebug(args)}`,
       )
-      deps.onDebug(`[bridge:session] Child args: ${args.join(' ')}`)
       if (debugFile) {
-        deps.onDebug(`[bridge:session] Debug log: ${debugFile}`)
+        deps.onDebug(
+          `[bridge:session] Debug log configured (${basename(debugFile)})`,
+        )
       }
 
       // Pipe all three streams: stdin for control, stdout for NDJSON parsing,
@@ -339,9 +381,7 @@ export function createSessionSpawner(deps: SessionSpawnerDeps): SessionSpawner {
         windowsHide: true,
       })
 
-      deps.onDebug(
-        `[bridge:session] sessionId=${opts.sessionId} pid=${child.pid}`,
-      )
+      deps.onDebug('[bridge:session] Child process started')
 
       const activities: SessionActivity[] = []
       let currentActivity: SessionActivity | null = null
@@ -376,7 +416,7 @@ export function createSessionSpawner(deps: SessionSpawnerDeps): SessionSpawner {
 
           // Log all messages flowing from the child CLI to the bridge
           deps.onDebug(
-            `[bridge:ws] sessionId=${opts.sessionId} <<< ${debugTruncate(line)}`,
+            `[bridge:ws] <<< ${summarizeSessionRunnerFrameForDebug(line)}`,
           )
 
           // In verbose mode, forward raw output to stderr
@@ -455,25 +495,23 @@ export function createSessionSpawner(deps: SessionSpawnerDeps): SessionSpawner {
 
           if (signal === 'SIGTERM' || signal === 'SIGINT') {
             deps.onDebug(
-              `[bridge:session] sessionId=${opts.sessionId} interrupted signal=${signal} pid=${child.pid}`,
+              `[bridge:session] interrupted signal=${signal ?? 'unknown'}`,
             )
             resolve('interrupted')
           } else if (code === 0) {
-            deps.onDebug(
-              `[bridge:session] sessionId=${opts.sessionId} completed exit_code=0 pid=${child.pid}`,
-            )
+            deps.onDebug('[bridge:session] completed exit_code=0')
             resolve('completed')
           } else {
-            deps.onDebug(
-              `[bridge:session] sessionId=${opts.sessionId} failed exit_code=${code} pid=${child.pid}`,
-            )
+            deps.onDebug(`[bridge:session] failed exit_code=${code}`)
             resolve('failed')
           }
         })
 
         child.on('error', err => {
           deps.onDebug(
-            `[bridge:session] sessionId=${opts.sessionId} spawn error: ${err.message}`,
+            `[bridge:session] spawn error: ${summarizeSessionRunnerErrorForDebug(
+              err,
+            )}`,
           )
           resolve('failed')
         })
@@ -490,9 +528,7 @@ export function createSessionSpawner(deps: SessionSpawnerDeps): SessionSpawner {
         },
         kill(): void {
           if (!child.killed) {
-            deps.onDebug(
-              `[bridge:session] Sending SIGTERM to sessionId=${opts.sessionId} pid=${child.pid}`,
-            )
+            deps.onDebug('[bridge:session] Sending SIGTERM to child process')
             // On Windows, child.kill('SIGTERM') throws; use default signal.
             if (process.platform === 'win32') {
               child.kill()
@@ -506,9 +542,7 @@ export function createSessionSpawner(deps: SessionSpawnerDeps): SessionSpawner {
           // not when the process exits. We need to send SIGKILL even after SIGTERM.
           if (!sigkillSent && child.pid) {
             sigkillSent = true
-            deps.onDebug(
-              `[bridge:session] Sending SIGKILL to sessionId=${opts.sessionId} pid=${child.pid}`,
-            )
+            deps.onDebug('[bridge:session] Sending SIGKILL to child process')
             if (process.platform === 'win32') {
               child.kill()
             } else {
@@ -519,7 +553,7 @@ export function createSessionSpawner(deps: SessionSpawnerDeps): SessionSpawner {
         writeStdin(data: string): void {
           if (child.stdin && !child.stdin.destroyed) {
             deps.onDebug(
-              `[bridge:ws] sessionId=${opts.sessionId} >>> ${debugTruncate(data)}`,
+              `[bridge:ws] >>> ${summarizeSessionRunnerFrameForDebug(data)}`,
             )
             child.stdin.write(data)
           }
@@ -536,9 +570,7 @@ export function createSessionSpawner(deps: SessionSpawnerDeps): SessionSpawner {
               variables: { CLAUDE_CODE_SESSION_ACCESS_TOKEN: token },
             }) + '\n',
           )
-          deps.onDebug(
-            `[bridge:session] Sent token refresh via stdin for sessionId=${opts.sessionId}`,
-          )
+          deps.onDebug('[bridge:session] Sent token refresh via stdin')
         },
       }
 

src/bridge/trustedDevice.ts

@@ -1,67 +1,22 @@
-import memoize from 'lodash-es/memoize.js'
-import { getFeatureValue_CACHED_MAY_BE_STALE } from '../services/analytics/growthbook.js'
 import { logForDebugging } from '../utils/debug.js'
 import { getSecureStorage } from '../utils/secureStorage/index.js'
 
 /**
- * Trusted device token source for bridge (remote-control) sessions.
+ * Trusted-device compatibility helpers for bridge (remote-control) sessions.
  *
- * Bridge sessions have SecurityTier=ELEVATED on the server (CCR v2).
- * The server gates ConnectBridgeWorker on its own flag
- * (sessions_elevated_auth_enforcement in Anthropic Main); this CLI-side
- * flag controls whether the CLI sends X-Trusted-Device-Token at all.
- * Two flags so rollout can be staged: flip CLI-side first (headers
- * start flowing, server still no-ops), then flip server-side.
- *
- * Enrollment (POST /auth/trusted_devices) is gated server-side by
- * account_session.created_at < 10min, so it must happen during /login.
- * Token is persistent (90d rolling expiry) and stored in keychain.
- *
- * See anthropics/anthropic#274559 (spec), #310375 (B1b tenant RPCs),
- * #295987 (B2 Python routes), #307150 (C1' CCR v2 gate).
+ * This fork disables trusted-device enrollment and header emission. The
+ * remaining helpers only clear any previously stored token during login/logout
+ * so old state is not carried forward.
  */
 
-const TRUSTED_DEVICE_GATE = 'tengu_sessions_elevated_auth_enforcement'
-
-function isGateEnabled(): boolean {
-  return getFeatureValue_CACHED_MAY_BE_STALE(TRUSTED_DEVICE_GATE, false)
-}
-
-// Memoized — secureStorage.read() spawns a macOS `security` subprocess (~40ms).
-// bridgeApi.ts calls this from getHeaders() on every poll/heartbeat/ack.
-// Cache cleared on logout (clearAuthRelatedCaches) and after any local update.
-//
-// Only the storage read is memoized — the GrowthBook gate is checked live so
-// that a gate flip after GrowthBook refresh takes effect without a restart.
-const readStoredToken = memoize((): string | undefined => {
-  // Env var takes precedence for testing/canary.
-  const envToken = process.env.CLAUDE_TRUSTED_DEVICE_TOKEN
-  if (envToken) {
-    return envToken
-  }
-  return getSecureStorage().read()?.trustedDeviceToken
-})
-
-export function getTrustedDeviceToken(): string | undefined {
-  if (!isGateEnabled()) {
-    return undefined
-  }
-  return readStoredToken()
-}
-
 export function clearTrustedDeviceTokenCache(): void {
-  readStoredToken.cache?.clear?.()
+  return
 }
 
 /**
- * Clear the stored trusted device token from secure storage and the memo cache.
- * Called during /login so a stale token from the previous account isn't sent
- * as X-Trusted-Device-Token after account switches.
+ * Clear any stored trusted-device token from secure storage.
  */
 export function clearTrustedDeviceToken(): void {
-  if (!isGateEnabled()) {
-    return
-  }
   const secureStorage = getSecureStorage()
   try {
     const data = secureStorage.read()
@@ -72,7 +27,6 @@ export function clearTrustedDeviceToken(): void {
   } catch {
     // Best-effort — don't block login if storage is inaccessible
   }
-  readStoredToken.cache?.clear?.()
 }
 
 /**

src/bridge/workSecret.ts

@@ -2,6 +2,33 @@ import axios from 'axios'
 import { jsonParse, jsonStringify } from '../utils/slowOperations.js'
 import type { WorkSecret } from './types.js'
 
+function summarizeRegisterWorkerResponseForDebug(data: unknown): string {
+  if (data === null) return 'null'
+  if (data === undefined) return 'undefined'
+  if (Array.isArray(data)) {
+    return jsonStringify({
+      payloadType: 'array',
+      length: data.length,
+    })
+  }
+  if (typeof data === 'object') {
+    const value = data as Record<string, unknown>
+    return jsonStringify({
+      payloadType: 'object',
+      keys: Object.keys(value)
+        .sort()
+        .slice(0, 10),
+      hasWorkerEpoch:
+        typeof value.worker_epoch === 'number' ||
+        typeof value.worker_epoch === 'string',
+      hasSessionIngressToken:
+        typeof value.session_ingress_token === 'string',
+      hasApiBaseUrl: typeof value.api_base_url === 'string',
+    })
+  }
+  return typeof data
+}
+
 /** Decode a base64url-encoded work secret and validate its version. */
 export function decodeWorkSecret(secret: string): WorkSecret {
   const json = Buffer.from(secret, 'base64url').toString('utf-8')
@@ -120,7 +147,9 @@ export async function registerWorker(
     !Number.isSafeInteger(epoch)
   ) {
     throw new Error(
-      `registerWorker: invalid worker_epoch in response: ${jsonStringify(response.data)}`,
+      `registerWorker: invalid worker_epoch in response: ${summarizeRegisterWorkerResponseForDebug(
+        response.data,
+      )}`,
     )
   }
   return epoch

src/components/Feedback.tsx

@@ -2,8 +2,6 @@ import * as React from 'react';
 import { useCallback, useEffect, useState } from 'react';
 import { readFile, stat } from 'fs/promises';
 import { getLastAPIRequest } from 'src/bootstrap/state.js';
-import { logEventTo1P } from 'src/services/analytics/firstPartyEventLogger.js';
-import { type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS, logEvent } from 'src/services/analytics/index.js';
 import { getLastAssistantMessage, normalizeMessagesForAPI } from 'src/utils/messages.js';
 import type { CommandResultDisplay } from '../commands.js';
 import { useTerminalSize } from '../hooks/useTerminalSize.js';

src/components/FeedbackSurvey/submitTranscriptShare.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, it } from 'bun:test'
+
+import { submitTranscriptShare } from './submitTranscriptShare.js'
+
+describe('submitTranscriptShare', () => {
+  it('returns the disabled result in this build', async () => {
+    await expect(
+      submitTranscriptShare([], 'good_feedback_survey', 'appearance-id'),
+    ).resolves.toEqual({
+      success: false,
+      disabled: true,
+    })
+  })
+})

src/entrypoints/init.ts

@@ -1,11 +1,8 @@
 import { profileCheckpoint } from '../utils/startupProfiler.js'
 import '../bootstrap/state.js'
 import '../utils/config.js'
-import type { Attributes, MetricOptions } from '@opentelemetry/api'
 import memoize from 'lodash-es/memoize.js'
 import { getIsNonInteractiveSession } from 'src/bootstrap/state.js'
-import type { AttributedCounter } from '../bootstrap/state.js'
-import { getSessionCounter, setMeter } from '../bootstrap/state.js'
 import { shutdownLspServerManager } from '../services/lsp/manager.js'
 import { populateOAuthAccountInfoIfNeeded } from '../services/oauth/client.js'
 import {
@@ -41,19 +38,9 @@ import {
   ensureScratchpadDir,
   isScratchpadEnabled,
 } from '../utils/permissions/filesystem.js'
-// initializeTelemetry is loaded lazily via import() in setMeterState() to defer
-// ~400KB of OpenTelemetry + protobuf modules until telemetry is actually initialized.
-// gRPC exporters (~700KB via @grpc/grpc-js) are further lazy-loaded within instrumentation.ts.
 import { configureGlobalAgents } from '../utils/proxy.js'
-import { isBetaTracingEnabled } from '../utils/telemetry/betaSessionTracing.js'
-import { getTelemetryAttributes } from '../utils/telemetryAttributes.js'
 import { setShellIfWindows } from '../utils/windowsPaths.js'
 
-// initialize1PEventLogging is dynamically imported to defer OpenTelemetry sdk-logs/resources
-
-// Track if telemetry has been initialized to prevent double initialization
-let telemetryInitialized = false
-
 export const init = memoize(async (): Promise<void> => {
   const initStartTime = Date.now()
   logForDiagnosticsNoPII('info', 'init_started')
@@ -87,22 +74,8 @@ export const init = memoize(async (): Promise<void> => {
     setupGracefulShutdown()
     profileCheckpoint('init_after_graceful_shutdown')
 
-    // Initialize 1P event logging (no security concerns, but deferred to avoid
-    // loading OpenTelemetry sdk-logs at startup). growthbook.js is already in
-    // the module cache by this point (firstPartyEventLogger imports it), so the
-    // second dynamic import adds no load cost.
-    void Promise.all([
-      import('../services/analytics/firstPartyEventLogger.js'),
-      import('../services/analytics/growthbook.js'),
-    ]).then(([fp, gb]) => {
-      fp.initialize1PEventLogging()
-      // Rebuild the logger provider if tengu_1p_event_batch_config changes
-      // mid-session. Change detection (isEqual) is inside the handler so
-      // unchanged refreshes are no-ops.
-      gb.onGrowthBookRefresh(() => {
-        void fp.reinitialize1PEventLoggingIfConfigChanged()
-      })
-    })
+    // Telemetry/log export is disabled in this build. Keep the startup
+    // checkpoint so callers depending on the init timeline still see it.
     profileCheckpoint('init_after_1p_event_logging')
 
     // Populate OAuth account info if it is not already cached in config. This is needed since the
@@ -236,105 +209,3 @@ export const init = memoize(async (): Promise<void> => {
     }
   }
 })
-
-/**
- * Initialize telemetry after trust has been granted.
- * For remote-settings-eligible users, waits for settings to load (non-blocking),
- * then re-applies env vars (to include remote settings) before initializing telemetry.
- * For non-eligible users, initializes telemetry immediately.
- * This should only be called once, after the trust dialog has been accepted.
- */
-export function initializeTelemetryAfterTrust(): void {
-  if (isEligibleForRemoteManagedSettings()) {
-    // For SDK/headless mode with beta tracing, initialize eagerly first
-    // to ensure the tracer is ready before the first query runs.
-    // The async path below will still run but doInitializeTelemetry() guards against double init.
-    if (getIsNonInteractiveSession() && isBetaTracingEnabled()) {
-      void doInitializeTelemetry().catch(error => {
-        logForDebugging(
-          `[3P telemetry] Eager telemetry init failed (beta tracing): ${errorMessage(error)}`,
-          { level: 'error' },
-        )
-      })
-    }
-    logForDebugging(
-      '[3P telemetry] Waiting for remote managed settings before telemetry init',
-    )
-    void waitForRemoteManagedSettingsToLoad()
-      .then(async () => {
-        logForDebugging(
-          '[3P telemetry] Remote managed settings loaded, initializing telemetry',
-        )
-        // Re-apply env vars to pick up remote settings before initializing telemetry.
-        applyConfigEnvironmentVariables()
-        await doInitializeTelemetry()
-      })
-      .catch(error => {
-        logForDebugging(
-          `[3P telemetry] Telemetry init failed (remote settings path): ${errorMessage(error)}`,
-          { level: 'error' },
-        )
-      })
-  } else {
-    void doInitializeTelemetry().catch(error => {
-      logForDebugging(
-        `[3P telemetry] Telemetry init failed: ${errorMessage(error)}`,
-        { level: 'error' },
-      )
-    })
-  }
-}
-
-async function doInitializeTelemetry(): Promise<void> {
-  if (telemetryInitialized) {
-    // Already initialized, nothing to do
-    return
-  }
-
-  // Set flag before init to prevent double initialization
-  telemetryInitialized = true
-  try {
-    await setMeterState()
-  } catch (error) {
-    // Reset flag on failure so subsequent calls can retry
-    telemetryInitialized = false
-    throw error
-  }
-}
-
-async function setMeterState(): Promise<void> {
-  // Lazy-load instrumentation to defer ~400KB of OpenTelemetry + protobuf
-  const { initializeTelemetry } = await import(
-    '../utils/telemetry/instrumentation.js'
-  )
-  // Initialize customer OTLP telemetry (metrics, logs, traces)
-  const meter = await initializeTelemetry()
-  if (meter) {
-    // Create factory function for attributed counters
-    const createAttributedCounter = (
-      name: string,
-      options: MetricOptions,
-    ): AttributedCounter => {
-      const counter = meter?.createCounter(name, options)
-
-      return {
-        add(value: number, additionalAttributes: Attributes = {}) {
-          // Always fetch fresh telemetry attributes to ensure they're up to date
-          const currentAttributes = getTelemetryAttributes()
-          const mergedAttributes = {
-            ...currentAttributes,
-            ...additionalAttributes,
-          }
-          counter?.add(value, mergedAttributes)
-        },
-      }
-    }
-
-    setMeter(meter, createAttributedCounter)
-
-    // Increment session counter here because the startup telemetry path
-    // runs before this async initialization completes, so the counter
-    // would be null there.
-    getSessionCounter()?.add(1)
-  }
-}

src/hooks/toolPermission/permissionLogging.ts

@@ -1,6 +1,6 @@
 // Centralized analytics/telemetry logging for tool permission decisions.
 // All permission approve/reject events flow through logPermissionDecision(),
-// which fans out to Statsig analytics, OTel telemetry, and code-edit metrics.
+// which fans out to analytics compatibility calls and code-edit metrics.
 import { feature } from 'bun:bundle'
 import {
   type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
@@ -11,7 +11,6 @@ import { getCodeEditToolDecisionCounter } from '../../bootstrap/state.js'
 import type { Tool as ToolType, ToolUseContext } from '../../Tool.js'
 import { getLanguageName } from '../../utils/cliHighlight.js'
 import { SandboxManager } from '../../utils/sandbox/sandbox-adapter.js'
-import { logOTelEvent } from '../../utils/telemetry/events.js'
 import type {
   PermissionApprovalSource,
   PermissionRejectionSource,
@@ -227,11 +226,6 @@ function logPermissionDecision(
     timestamp: Date.now(),
   })
 
-  void logOTelEvent('tool_decision', {
-    decision,
-    source: sourceString,
-    tool_name: sanitizeToolNameForAnalytics(tool.name),
-  })
 }
 
 export { isCodeEditingTool, buildCodeEditToolAttributes, logPermissionDecision }

src/hooks/useInboxPoller.ts

@@ -59,7 +59,7 @@ import {
   isShutdownApproved,
   isShutdownRequest,
   isTeamPermissionUpdate,
-  markMessagesAsRead,
+  markMessagesAsReadByPredicate,
   readUnreadMessages,
   type TeammateMessage,
   writeToMailbox,
@@ -195,10 +195,20 @@ export function useInboxPoller({
       }
     }
 
-    // Helper to mark messages as read in the inbox file.
+    // Helper to remove the unread batch we just processed from the inbox file.
     // Called after messages are successfully delivered or reliably queued.
+    const deliveredMessageKeys = new Set(
+      unread.map(message => `${message.from}|${message.timestamp}|${message.text}`),
+    )
     const markRead = () => {
-      void markMessagesAsRead(agentName, currentAppState.teamContext?.teamName)
+      void markMessagesAsReadByPredicate(
+        agentName,
+        message =>
+          deliveredMessageKeys.has(
+            `${message.from}|${message.timestamp}|${message.text}`,
+          ),
+        currentAppState.teamContext?.teamName,
+      )
     }
 
     // Separate permission messages from regular teammate messages
@@ -503,9 +513,7 @@ export function useInboxPoller({
       for (const m of teamPermissionUpdates) {
         const parsed = isTeamPermissionUpdate(m.text)
         if (!parsed) {
-          logForDebugging(
-            `[InboxPoller] Failed to parse team permission update: ${m.text.substring(0, 100)}`,
-          )
+          logForDebugging('[InboxPoller] Failed to parse team permission update')
           continue
         }
 
@@ -522,10 +530,7 @@ export function useInboxPoller({
 
         // Apply the permission update to the teammate's context
         logForDebugging(
-          `[InboxPoller] Applying team permission update: ${parsed.toolName} allowed in ${parsed.directoryPath}`,
-        )
-        logForDebugging(
-          `[InboxPoller] Permission update rules: ${jsonStringify(parsed.permissionUpdate.rules)}`,
+          `[InboxPoller] Applying team permission update for ${parsed.toolName} (${parsed.permissionUpdate.rules.length} rule(s))`,
         )
 
         setAppState(prev => {
@@ -536,7 +541,7 @@ export function useInboxPoller({
             destination: 'session',
           })
           logForDebugging(
-            `[InboxPoller] Updated session allow rules: ${jsonStringify(updated.alwaysAllowRules.session)}`,
+            `[InboxPoller] Updated session allow rules (${updated.alwaysAllowRules.session.length} total)`,
           )
           return {
             ...prev,
@@ -563,9 +568,7 @@ export function useInboxPoller({
 
         const parsed = isModeSetRequest(m.text)
         if (!parsed) {
-          logForDebugging(
-            `[InboxPoller] Failed to parse mode set request: ${m.text.substring(0, 100)}`,
-          )
+          logForDebugging('[InboxPoller] Failed to parse mode set request')
           continue
         }
 

src/hooks/useSwarmPermissionPoller.ts

@@ -1,31 +1,16 @@
 /**
- * Swarm Permission Poller Hook
+ * Swarm permission callback registry helpers.
  *
- * This hook polls for permission responses from the team leader when running
- * as a worker agent in a swarm. When a response is received, it calls the
- * appropriate callback (onAllow/onReject) to continue execution.
- *
- * This hook should be used in conjunction with the worker-side integration
- * in useCanUseTool.ts, which creates pending requests that this hook monitors.
+ * Permission requests/responses now flow entirely through teammate mailboxes.
+ * Workers register callbacks here, and the inbox poller dispatches mailbox
+ * responses back into those callbacks.
  */
 
-import { useCallback, useEffect, useRef } from 'react'
-import { useInterval } from 'usehooks-ts'
 import { logForDebugging } from '../utils/debug.js'
-import { errorMessage } from '../utils/errors.js'
 import {
   type PermissionUpdate,
   permissionUpdateSchema,
 } from '../utils/permissions/PermissionUpdateSchema.js'
-import {
-  isSwarmWorker,
-  type PermissionResponse,
-  pollForResponse,
-  removeWorkerResponse,
-} from '../utils/swarm/permissionSync.js'
-import { getAgentName, getTeamName } from '../utils/teammate.js'
-
-const POLL_INTERVAL_MS = 500
 
 /**
  * Validate permissionUpdates from external sources (mailbox IPC, disk polling).
@@ -226,105 +211,9 @@ export function processSandboxPermissionResponse(params: {
 }
 
 /**
- * Process a permission response by invoking the registered callback
- */
-function processResponse(response: PermissionResponse): boolean {
-  const callback = pendingCallbacks.get(response.requestId)
-
-  if (!callback) {
-    logForDebugging(
-      `[SwarmPermissionPoller] No callback registered for request ${response.requestId}`,
-    )
-    return false
-  }
-
-  logForDebugging(
-    `[SwarmPermissionPoller] Processing response for request ${response.requestId}: ${response.decision}`,
-  )
-
-  // Remove from registry before invoking callback
-  pendingCallbacks.delete(response.requestId)
-
-  if (response.decision === 'approved') {
-    const permissionUpdates = parsePermissionUpdates(response.permissionUpdates)
-    const updatedInput = response.updatedInput
-    callback.onAllow(updatedInput, permissionUpdates)
-  } else {
-    callback.onReject(response.feedback)
-  }
-
-  return true
-}
-
-/**
- * Hook that polls for permission responses when running as a swarm worker.
- *
- * This hook:
- * 1. Only activates when isSwarmWorker() returns true
- * 2. Polls every 500ms for responses
- * 3. When a response is found, invokes the registered callback
- * 4. Cleans up the response file after processing
+ * Legacy no-op hook kept for compatibility with older imports.
+ * Mailbox responses are handled by useInboxPoller instead of disk polling.
  */
 export function useSwarmPermissionPoller(): void {
-  const isProcessingRef = useRef(false)
-
-  const poll = useCallback(async () => {
-    // Don't poll if not a swarm worker
-    if (!isSwarmWorker()) {
-      return
-    }
-
-    // Prevent concurrent polling
-    if (isProcessingRef.current) {
-      return
-    }
-
-    // Don't poll if no callbacks are registered
-    if (pendingCallbacks.size === 0) {
-      return
-    }
-
-    isProcessingRef.current = true
-
-    try {
-      const agentName = getAgentName()
-      const teamName = getTeamName()
-
-      if (!agentName || !teamName) {
-        return
-      }
-
-      // Check each pending request for a response
-      for (const [requestId, _callback] of pendingCallbacks) {
-        const response = await pollForResponse(requestId, agentName, teamName)
-
-        if (response) {
-          // Process the response
-          const processed = processResponse(response)
-
-          if (processed) {
-            // Clean up the response from the worker's inbox
-            await removeWorkerResponse(requestId, agentName, teamName)
-          }
-        }
-      }
-    } catch (error) {
-      logForDebugging(
-        `[SwarmPermissionPoller] Error during poll: ${errorMessage(error)}`,
-      )
-    } finally {
-      isProcessingRef.current = false
-    }
-  }, [])
-
-  // Only poll if we're a swarm worker
-  const shouldPoll = isSwarmWorker()
-  useInterval(() => void poll(), shouldPoll ? POLL_INTERVAL_MS : null)
-
-  // Initial poll on mount
-  useEffect(() => {
-    if (isSwarmWorker()) {
-      void poll()
-    }
-  }, [poll])
+  // Intentionally empty.
 }

src/main.tsx

@@ -29,7 +29,7 @@ import React from 'react';
 import { getOauthConfig } from './constants/oauth.js';
 import { getRemoteSessionUrl } from './constants/product.js';
 import { getSystemContext, getUserContext } from './context.js';
-import { init, initializeTelemetryAfterTrust } from './entrypoints/init.js';
+import { init } from './entrypoints/init.js';
 import { addToHistory } from './history.js';
 import type { Root } from './ink.js';
 import { launchRepl } from './replLauncher.js';
@@ -49,7 +49,7 @@ import { isAgentSwarmsEnabled } from './utils/agentSwarmsEnabled.js';
 import { count, uniq } from './utils/array.js';
 import { installAsciicastRecorder } from './utils/asciicast.js';
 import { getSubscriptionType, isClaudeAISubscriber, prefetchAwsCredentialsAndBedRockInfoIfSafe, prefetchGcpCredentialsIfSafe, validateForceLoginOrg } from './utils/auth.js';
-import { checkHasTrustDialogAccepted, getGlobalConfig, getRemoteControlAtStartup, isAutoUpdaterDisabled, saveGlobalConfig } from './utils/config.js';
+import { checkHasTrustDialogAccepted, getGlobalConfig, getRemoteControlAtStartup, saveGlobalConfig } from './utils/config.js';
 import { seedEarlyInput, stopCapturingEarlyInput } from './utils/earlyInput.js';
 import { getInitialEffortSetting, parseEffortValue } from './utils/effort.js';
 import { getInitialFastModeSetting, isFastModeEnabled, prefetchFastModeStatus, resolveFastModeStatusFromCache } from './utils/fastMode.js';
@@ -80,10 +80,8 @@ const coordinatorModeModule = feature('COORDINATOR_MODE') ? require('./coordinat
 const assistantModule = feature('KAIROS') ? require('./assistant/index.js') as typeof import('./assistant/index.js') : null;
 const kairosGate = feature('KAIROS') ? require('./assistant/gate.js') as typeof import('./assistant/gate.js') : null;
 import { relative, resolve } from 'path';
-import { isAnalyticsDisabled } from 'src/services/analytics/config.js';
 import { getFeatureValue_CACHED_MAY_BE_STALE } from 'src/services/analytics/growthbook.js';
 import { type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS, logEvent } from 'src/services/analytics/index.js';
-import { initializeAnalyticsGates } from 'src/services/analytics/sink.js';
 import { getOriginalCwd, setAdditionalDirectoriesForClaudeMd, setIsRemoteMode, setMainLoopModelOverride, setMainThreadAgentType, setTeleportedSessionInfo } from './bootstrap/state.js';
 import { filterCommandsForRemoteMode, getCommands } from './commands.js';
 import type { StatsStore } from './context/stats.js';
@@ -103,15 +101,13 @@ import type { Message as MessageType } from './types/message.js';
 import { assertMinVersion } from './utils/autoUpdater.js';
 import { CLAUDE_IN_CHROME_SKILL_HINT, CLAUDE_IN_CHROME_SKILL_HINT_WITH_WEBBROWSER } from './utils/claudeInChrome/prompt.js';
 import { setupClaudeInChrome, shouldAutoEnableClaudeInChrome, shouldEnableClaudeInChrome } from './utils/claudeInChrome/setup.js';
-import { getContextWindowForModel } from './utils/context.js';
 import { loadConversationForResume } from './utils/conversationRecovery.js';
 import { buildDeepLinkBanner } from './utils/deepLink/banner.js';
-import { hasNodeOption, isBareMode, isEnvTruthy, isInProtectedNamespace } from './utils/envUtils.js';
+import { isBareMode, isEnvTruthy, isInProtectedNamespace } from './utils/envUtils.js';
 import { refreshExampleCommands } from './utils/exampleCommands.js';
 import type { FpsMetrics } from './utils/fpsTracker.js';
 import { getWorktreePaths } from './utils/getWorktreePaths.js';
-import { findGitRoot, getBranch, getIsGit, getWorktreeCount } from './utils/git.js';
-import { getGhAuthStatus } from './utils/github/ghAuthStatus.js';
+import { findGitRoot, getBranch } from './utils/git.js';
 import { safeParseJSON } from './utils/json.js';
 import { logError } from './utils/log.js';
 import { getModelDeprecationWarning } from './utils/model/deprecation.js';
@@ -121,9 +117,7 @@ import { PERMISSION_MODES } from './utils/permissions/PermissionMode.js';
 import { checkAndDisableBypassPermissions, getAutoModeEnabledStateIfCached, initializeToolPermissionContext, initialPermissionModeFromCLI, isDefaultPermissionModeAuto, parseToolListFromCLI, removeDangerousPermissions, stripDangerousPermissionsForAutoMode, verifyAutoModeGateAccess } from './utils/permissions/permissionSetup.js';
 import { cleanupOrphanedPluginVersionsInBackground } from './utils/plugins/cacheUtils.js';
 import { initializeVersionedPlugins } from './utils/plugins/installedPluginsManager.js';
-import { getManagedPluginNames } from './utils/plugins/managedPlugins.js';
 import { getGlobExclusionsForPluginCache } from './utils/plugins/orphanedPluginFilter.js';
-import { getPluginSeedDirs } from './utils/plugins/pluginDirectories.js';
 import { countFilesRoundedRg } from './utils/ripgrep.js';
 import { processSessionStartHooks, processSetupHooks } from './utils/sessionStart.js';
 import { cacheSessionTitle, getSessionIdFromLog, loadTranscriptFromFile, saveAgentSetting, saveMode, searchSessionsByCustomTitle, sessionIdExists } from './utils/sessionStorage.js';
@@ -132,8 +126,6 @@ import { getInitialSettings, getManagedSettingsKeysForLogging, getSettingsForSou
 import { resetSettingsCache } from './utils/settings/settingsCache.js';
 import type { ValidationError } from './utils/settings/validation.js';
 import { DEFAULT_TASKS_MODE_TASK_LIST_ID, TASK_STATUSES } from './utils/tasks.js';
-import { logPluginLoadErrors, logPluginsEnabledForSession } from './utils/telemetry/pluginTelemetry.js';
-import { logSkillsLoaded } from './utils/telemetry/skillLoadedEvent.js';
 import { generateTempFilePath } from './utils/tempfile.js';
 import { validateUuid } from './utils/uuid.js';
 // Plugin startup checks are now handled non-blockingly in REPL.tsx
@@ -196,7 +188,7 @@ import { filterAllowedSdkBetas } from './utils/betas.js';
 import { isInBundledMode, isRunningWithBun } from './utils/bundledMode.js';
 import { logForDiagnosticsNoPII } from './utils/diagLogs.js';
 import { filterExistingPaths, getKnownPathsForRepo } from './utils/githubRepoPathMapping.js';
-import { clearPluginCache, loadAllPluginsCacheOnly } from './utils/plugins/pluginLoader.js';
+import { clearPluginCache } from './utils/plugins/pluginLoader.js';
 import { migrateChangelogFromConfig } from './utils/releaseNotes.js';
 import { SandboxManager } from './utils/sandbox/sandbox-adapter.js';
 import { fetchSession, prepareApiRequest } from './utils/teleport/api.js';
@@ -270,56 +262,6 @@ if ("external" !== 'ant' && isBeingDebugged()) {
   process.exit(1);
 }
 
-/**
- * Per-session skill/plugin telemetry. Called from both the interactive path
- * and the headless -p path (before runHeadless) — both go through
- * main.tsx but branch before the interactive startup path, so it needs two
- * call sites here rather than one here + one in QueryEngine.
- */
-function logSessionTelemetry(): void {
-  const model = parseUserSpecifiedModel(getInitialMainLoopModel() ?? getDefaultMainLoopModel());
-  void logSkillsLoaded(getCwd(), getContextWindowForModel(model, getSdkBetas()));
-  void loadAllPluginsCacheOnly().then(({
-    enabled,
-    errors
-  }) => {
-    const managedNames = getManagedPluginNames();
-    logPluginsEnabledForSession(enabled, managedNames, getPluginSeedDirs());
-    logPluginLoadErrors(errors, managedNames);
-  }).catch(err => logError(err));
-}
-function getCertEnvVarTelemetry(): Record<string, boolean> {
-  const result: Record<string, boolean> = {};
-  if (process.env.NODE_EXTRA_CA_CERTS) {
-    result.has_node_extra_ca_certs = true;
-  }
-  if (process.env.CLAUDE_CODE_CLIENT_CERT) {
-    result.has_client_cert = true;
-  }
-  if (hasNodeOption('--use-system-ca')) {
-    result.has_use_system_ca = true;
-  }
-  if (hasNodeOption('--use-openssl-ca')) {
-    result.has_use_openssl_ca = true;
-  }
-  return result;
-}
-async function logStartupTelemetry(): Promise<void> {
-  if (isAnalyticsDisabled()) return;
-  const [isGit, worktreeCount, ghAuthStatus] = await Promise.all([getIsGit(), getWorktreeCount(), getGhAuthStatus()]);
-  logEvent('tengu_startup_telemetry', {
-    is_git: isGit,
-    worktree_count: worktreeCount,
-    gh_auth_status: ghAuthStatus as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
-    sandbox_enabled: SandboxManager.isSandboxingEnabled(),
-    are_unsandboxed_commands_allowed: SandboxManager.areUnsandboxedCommandsAllowed(),
-    is_auto_bash_allowed_if_sandbox_enabled: SandboxManager.isAutoAllowBashIfSandboxedEnabled(),
-    auto_updater_disabled: isAutoUpdaterDisabled(),
-    prefers_reduced_motion: getInitialSettings().prefersReducedMotion ?? false,
-    ...getCertEnvVarTelemetry()
-  });
-}
-
 // @[MODEL LAUNCH]: Consider any migrations you may need for model strings. See migrateSonnet1mToSonnet45.ts for an example.
 // Bump this when adding a new sync migration so existing users re-run the set.
 const CURRENT_MIGRATION_VERSION = 11;
@@ -413,8 +355,7 @@ export function startDeferredPrefetches(): void {
   }
   void countFilesRoundedRg(getCwd(), AbortSignal.timeout(3000), []);
 
-  // Analytics and feature flag initialization
-  void initializeAnalyticsGates();
+  // Feature flag initialization
   void prefetchOfficialMcpUrls();
   void refreshModelCapabilities();
 
@@ -923,11 +864,8 @@ async function run(): Promise<CommanderCommand> {
       process.title = 'claude';
     }
 
-    // Attach logging sinks so subcommand handlers can use logEvent/logError.
-    // Before PR #11106 logEvent dispatched directly; after, events queue until
-    // a sink attaches. setup() attaches sinks for the default command, but
-    // subcommands (doctor, mcp, plugin, auth) never call setup() and would
-    // silently drop events on process.exit(). Both inits are idempotent.
+    // Attach shared sinks for subcommands that bypass setup(). Today this is
+    // just the local error-log sink; analytics/event logging is already inert.
     const {
       initSinks
     } = await import('./utils/sinks.js');
@@ -2285,11 +2223,8 @@ async function run(): Promise<CommanderCommand> {
         resetUserCache();
         // Refresh GrowthBook after login to get updated feature flags (e.g., for claude.ai MCPs)
         refreshGrowthBookAfterAuthChange();
-        // Clear any stale trusted device token then enroll for Remote Control.
-        // Both self-gate on tengu_sessions_elevated_auth_enforcement internally
-        // — enrollTrustedDevice() via checkGate_CACHED_OR_BLOCKING (awaits
-        // the GrowthBook reinit above), clearTrustedDeviceToken() via the
-        // sync cached check (acceptable since clear is idempotent).
+        // Clear any stale trusted-device token, then run the no-op enrollment
+        // stub so the disabled bridge path stays consistent after login.
         void import('./bridge/trustedDevice.js').then(m => {
           m.clearTrustedDeviceToken();
           return m.enrollTrustedDevice();
@@ -2587,15 +2522,10 @@ async function run(): Promise<CommanderCommand> {
         setHasFormattedOutput(true);
       }
 
-      // Apply full environment variables in print mode since trust dialog is bypassed
-      // This includes potentially dangerous environment variables from untrusted sources
+      // Apply full environment variables in print mode since trust dialog is bypassed.
       // but print mode is considered trusted (as documented in help text)
       applyConfigEnvironmentVariables();
 
-      // Initialize telemetry after env vars are applied so OTEL endpoint env vars and
-      // otelHeadersHelper (which requires trust to execute) are available.
-      initializeTelemetryAfterTrust();
-
       // Kick SessionStart hooks now so the subprocess spawn overlaps with
       // MCP connect + plugin init + print.ts import below. loadInitialMessages
       // joins this at print.ts:4397. Guarded same as loadInitialMessages —
@@ -2820,7 +2750,6 @@ async function run(): Promise<CommanderCommand> {
           void import('./utils/sdkHeapDumpMonitor.js').then(m => m.startSdkMemoryMonitor());
         }
       }
-      logSessionTelemetry();
       profileCheckpoint('before_print_import');
       const {
         runHeadless
@@ -3043,15 +2972,11 @@ async function run(): Promise<CommanderCommand> {
 
     // Increment numStartups synchronously — first-render readers like
     // shouldShowEffortCallout (via useState initializer) need the updated
-    // value before setImmediate fires. Defer only telemetry.
+    // value immediately.
     saveGlobalConfig(current => ({
       ...current,
       numStartups: (current.numStartups ?? 0) + 1
     }));
-    setImmediate(() => {
-      void logStartupTelemetry();
-      logSessionTelemetry();
-    });
 
     // Set up per-turn session environment data uploader (ant-only build).
     // Default-enabled for all ant users when working in an Anthropic-owned

src/remote/SessionsWebSocket.ts

@@ -8,7 +8,6 @@ import type {
   SDKControlResponse,
 } from '../entrypoints/sdk/controlTypes.ts'
 import { logForDebugging } from '../utils/debug.js'
-import { errorMessage } from '../utils/errors.js'
 import { logError } from '../utils/log.js'
 import { getWebSocketTLSOptions } from '../utils/mtls.js'
 import { getWebSocketProxyAgent, getWebSocketProxyUrl } from '../utils/proxy.js'
@@ -54,6 +53,16 @@ function isSessionsMessage(value: unknown): value is SessionsMessage {
   return typeof value.type === 'string'
 }
 
+function summarizeSessionsWebSocketErrorForDebug(error: unknown): string {
+  return jsonStringify({
+    errorType:
+      error instanceof Error ? error.constructor.name : typeof error,
+    errorName: error instanceof Error ? error.name : undefined,
+    hasMessage: error instanceof Error ? error.message.length > 0 : false,
+    hasStack: error instanceof Error ? Boolean(error.stack) : false,
+  })
+}
+
 export type SessionsWebSocketCallbacks = {
   onMessage: (message: SessionsMessage) => void
   onClose?: () => void
@@ -108,7 +117,9 @@ export class SessionsWebSocket {
     const baseUrl = getOauthConfig().BASE_API_URL.replace('https://', 'wss://')
     const url = `${baseUrl}/v1/sessions/ws/${this.sessionId}/subscribe?organization_uuid=${this.orgUuid}`
 
-    logForDebugging(`[SessionsWebSocket] Connecting to ${url}`)
+    logForDebugging(
+      '[SessionsWebSocket] Connecting to session subscription endpoint',
+    )
 
     // Get fresh token for each connection attempt
     const accessToken = this.getAccessToken()
@@ -152,9 +163,7 @@ export class SessionsWebSocket {
 
       // eslint-disable-next-line eslint-plugin-n/no-unsupported-features/node-builtins
       ws.addEventListener('close', (event: CloseEvent) => {
-        logForDebugging(
-          `[SessionsWebSocket] Closed: code=${event.code} reason=${event.reason}`,
-        )
+        logForDebugging(`[SessionsWebSocket] Closed: code=${event.code}`)
         this.handleClose(event.code)
       })
 
@@ -187,14 +196,19 @@ export class SessionsWebSocket {
       })
 
       ws.on('error', (err: Error) => {
-        logError(new Error(`[SessionsWebSocket] Error: ${err.message}`))
+        logError(
+          new Error(
+            `[SessionsWebSocket] Error: ${summarizeSessionsWebSocketErrorForDebug(
+              err,
+            )}`,
+          ),
+        )
         this.callbacks.onError?.(err)
       })
 
       ws.on('close', (code: number, reason: Buffer) => {
-        logForDebugging(
-          `[SessionsWebSocket] Closed: code=${code} reason=${reason.toString()}`,
-        )
+        void reason
+        logForDebugging(`[SessionsWebSocket] Closed: code=${code}`)
         this.handleClose(code)
       })
 
@@ -222,7 +236,9 @@ export class SessionsWebSocket {
     } catch (error) {
       logError(
         new Error(
-          `[SessionsWebSocket] Failed to parse message: ${errorMessage(error)}`,
+          `[SessionsWebSocket] Failed to parse message: ${summarizeSessionsWebSocketErrorForDebug(
+            error,
+          )}`,
         ),
       )
     }

src/services/analytics/config.ts

@@ -2,7 +2,7 @@
  * Shared analytics configuration
  *
  * Common logic for determining when analytics should be disabled
- * across all analytics systems (Datadog, 1P)
+ * across the remaining local analytics compatibility surfaces.
  */
 
 import { isEnvTruthy } from '../../utils/envUtils.js'
@@ -31,7 +31,7 @@ export function isAnalyticsDisabled(): boolean {
  *
  * Unlike isAnalyticsDisabled(), this does NOT block on 3P providers
  * (Bedrock/Vertex/Foundry). The survey is a local UI prompt with no
- * transcript data — enterprise customers capture responses via OTEL.
+ * transcript upload in this fork.
  */
 export function isFeedbackSurveyDisabled(): boolean {
   return process.env.NODE_ENV === 'test' || isTelemetryDisabled()

src/services/analytics/datadog.ts

@@ -1,307 +0,0 @@
-import axios from 'axios'
-import { createHash } from 'crypto'
-import memoize from 'lodash-es/memoize.js'
-import { getOrCreateUserID } from '../../utils/config.js'
-import { logError } from '../../utils/log.js'
-import { getCanonicalName } from '../../utils/model/model.js'
-import { getAPIProvider } from '../../utils/model/providers.js'
-import { MODEL_COSTS } from '../../utils/modelCost.js'
-import { isAnalyticsDisabled } from './config.js'
-import { getEventMetadata } from './metadata.js'
-
-const DATADOG_LOGS_ENDPOINT =
-  'https://http-intake.logs.us5.datadoghq.com/api/v2/logs'
-const DATADOG_CLIENT_TOKEN = 'pubbbf48e6d78dae54bceaa4acf463299bf'
-const DEFAULT_FLUSH_INTERVAL_MS = 15000
-const MAX_BATCH_SIZE = 100
-const NETWORK_TIMEOUT_MS = 5000
-
-const DATADOG_ALLOWED_EVENTS = new Set([
-  'chrome_bridge_connection_succeeded',
-  'chrome_bridge_connection_failed',
-  'chrome_bridge_disconnected',
-  'chrome_bridge_tool_call_completed',
-  'chrome_bridge_tool_call_error',
-  'chrome_bridge_tool_call_started',
-  'chrome_bridge_tool_call_timeout',
-  'tengu_api_error',
-  'tengu_api_success',
-  'tengu_brief_mode_enabled',
-  'tengu_brief_mode_toggled',
-  'tengu_brief_send',
-  'tengu_cancel',
-  'tengu_compact_failed',
-  'tengu_exit',
-  'tengu_flicker',
-  'tengu_init',
-  'tengu_model_fallback_triggered',
-  'tengu_oauth_error',
-  'tengu_oauth_success',
-  'tengu_oauth_token_refresh_failure',
-  'tengu_oauth_token_refresh_success',
-  'tengu_oauth_token_refresh_lock_acquiring',
-  'tengu_oauth_token_refresh_lock_acquired',
-  'tengu_oauth_token_refresh_starting',
-  'tengu_oauth_token_refresh_completed',
-  'tengu_oauth_token_refresh_lock_releasing',
-  'tengu_oauth_token_refresh_lock_released',
-  'tengu_query_error',
-  'tengu_session_file_read',
-  'tengu_started',
-  'tengu_tool_use_error',
-  'tengu_tool_use_granted_in_prompt_permanent',
-  'tengu_tool_use_granted_in_prompt_temporary',
-  'tengu_tool_use_rejected_in_prompt',
-  'tengu_tool_use_success',
-  'tengu_uncaught_exception',
-  'tengu_unhandled_rejection',
-  'tengu_voice_recording_started',
-  'tengu_voice_toggled',
-  'tengu_team_mem_sync_pull',
-  'tengu_team_mem_sync_push',
-  'tengu_team_mem_sync_started',
-  'tengu_team_mem_entries_capped',
-])
-
-const TAG_FIELDS = [
-  'arch',
-  'clientType',
-  'errorType',
-  'http_status_range',
-  'http_status',
-  'kairosActive',
-  'model',
-  'platform',
-  'provider',
-  'skillMode',
-  'subscriptionType',
-  'toolName',
-  'userBucket',
-  'userType',
-  'version',
-  'versionBase',
-]
-
-function camelToSnakeCase(str: string): string {
-  return str.replace(/[A-Z]/g, letter => `_${letter.toLowerCase()}`)
-}
-
-type DatadogLog = {
-  ddsource: string
-  ddtags: string
-  message: string
-  service: string
-  hostname: string
-  [key: string]: unknown
-}
-
-let logBatch: DatadogLog[] = []
-let flushTimer: NodeJS.Timeout | null = null
-let datadogInitialized: boolean | null = null
-
-async function flushLogs(): Promise<void> {
-  if (logBatch.length === 0) return
-
-  const logsToSend = logBatch
-  logBatch = []
-
-  try {
-    await axios.post(DATADOG_LOGS_ENDPOINT, logsToSend, {
-      headers: {
-        'Content-Type': 'application/json',
-        'DD-API-KEY': DATADOG_CLIENT_TOKEN,
-      },
-      timeout: NETWORK_TIMEOUT_MS,
-    })
-  } catch (error) {
-    logError(error)
-  }
-}
-
-function scheduleFlush(): void {
-  if (flushTimer) return
-
-  flushTimer = setTimeout(() => {
-    flushTimer = null
-    void flushLogs()
-  }, getFlushIntervalMs()).unref()
-}
-
-export const initializeDatadog = memoize(async (): Promise<boolean> => {
-  if (isAnalyticsDisabled()) {
-    datadogInitialized = false
-    return false
-  }
-
-  try {
-    datadogInitialized = true
-    return true
-  } catch (error) {
-    logError(error)
-    datadogInitialized = false
-    return false
-  }
-})
-
-/**
- * Flush remaining Datadog logs and shut down.
- * Called from gracefulShutdown() before process.exit() since
- * forceExit() prevents the beforeExit handler from firing.
- */
-export async function shutdownDatadog(): Promise<void> {
-  if (flushTimer) {
-    clearTimeout(flushTimer)
-    flushTimer = null
-  }
-  await flushLogs()
-}
-
-// NOTE: use via src/services/analytics/index.ts > logEvent
-export async function trackDatadogEvent(
-  eventName: string,
-  properties: { [key: string]: boolean | number | undefined },
-): Promise<void> {
-  if (process.env.NODE_ENV !== 'production') {
-    return
-  }
-
-  // Don't send events for 3P providers (Bedrock, Vertex, Foundry)
-  if (getAPIProvider() !== 'firstParty') {
-    return
-  }
-
-  // Fast path: use cached result if available to avoid await overhead
-  let initialized = datadogInitialized
-  if (initialized === null) {
-    initialized = await initializeDatadog()
-  }
-  if (!initialized || !DATADOG_ALLOWED_EVENTS.has(eventName)) {
-    return
-  }
-
-  try {
-    const metadata = await getEventMetadata({
-      model: properties.model,
-      betas: properties.betas,
-    })
-    // Destructure to avoid duplicate envContext (once nested, once flattened)
-    const { envContext, ...restMetadata } = metadata
-    const allData: Record<string, unknown> = {
-      ...restMetadata,
-      ...envContext,
-      ...properties,
-      userBucket: getUserBucket(),
-    }
-
-    // Normalize MCP tool names to "mcp" for cardinality reduction
-    if (
-      typeof allData.toolName === 'string' &&
-      allData.toolName.startsWith('mcp__')
-    ) {
-      allData.toolName = 'mcp'
-    }
-
-    // Normalize model names for cardinality reduction (external users only)
-    if (process.env.USER_TYPE !== 'ant' && typeof allData.model === 'string') {
-      const shortName = getCanonicalName(allData.model.replace(/\[1m]$/i, ''))
-      allData.model = shortName in MODEL_COSTS ? shortName : 'other'
-    }
-
-    // Truncate dev version to base + date (remove timestamp and sha for cardinality reduction)
-    // e.g. "2.0.53-dev.20251124.t173302.sha526cc6a" -> "2.0.53-dev.20251124"
-    if (typeof allData.version === 'string') {
-      allData.version = allData.version.replace(
-        /^(\d+\.\d+\.\d+-dev\.\d{8})\.t\d+\.sha[a-f0-9]+$/,
-        '$1',
-      )
-    }
-
-    // Transform status to http_status and http_status_range to avoid Datadog reserved field
-    if (allData.status !== undefined && allData.status !== null) {
-      const statusCode = String(allData.status)
-      allData.http_status = statusCode
-
-      // Determine status range (1xx, 2xx, 3xx, 4xx, 5xx)
-      const firstDigit = statusCode.charAt(0)
-      if (firstDigit >= '1' && firstDigit <= '5') {
-        allData.http_status_range = `${firstDigit}xx`
-      }
-
-      // Remove original status field to avoid conflict with Datadog's reserved field
-      delete allData.status
-    }
-
-    // Build ddtags with high-cardinality fields for filtering.
-    // event:<name> is prepended so the event name is searchable via the
-    // log search API — the `message` field (where eventName also lives)
-    // is a DD reserved field and is NOT queryable from dashboard widget
-    // queries or the aggregation API. See scripts/release/MONITORING.md.
-    const allDataRecord = allData
-    const tags = [
-      `event:${eventName}`,
-      ...TAG_FIELDS.filter(
-        field =>
-          allDataRecord[field] !== undefined && allDataRecord[field] !== null,
-      ).map(field => `${camelToSnakeCase(field)}:${allDataRecord[field]}`),
-    ]
-
-    const log: DatadogLog = {
-      ddsource: 'nodejs',
-      ddtags: tags.join(','),
-      message: eventName,
-      service: 'claude-code',
-      hostname: 'claude-code',
-      env: process.env.USER_TYPE,
-    }
-
-    // Add all fields as searchable attributes (not duplicated in tags)
-    for (const [key, value] of Object.entries(allData)) {
-      if (value !== undefined && value !== null) {
-        log[camelToSnakeCase(key)] = value
-      }
-    }
-
-    logBatch.push(log)
-
-    // Flush immediately if batch is full, otherwise schedule
-    if (logBatch.length >= MAX_BATCH_SIZE) {
-      if (flushTimer) {
-        clearTimeout(flushTimer)
-        flushTimer = null
-      }
-      void flushLogs()
-    } else {
-      scheduleFlush()
-    }
-  } catch (error) {
-    logError(error)
-  }
-}
-
-const NUM_USER_BUCKETS = 30
-
-/**
- * Gets a 'bucket' that the user ID falls into.
- *
- * For alerting purposes, we want to alert on the number of users impacted
- * by an issue, rather than the number of events- often a small number of users
- * can generate a large number of events (e.g. due to retries). To approximate
- * this without ruining cardinality by counting user IDs directly, we hash the user ID
- * and assign it to one of a fixed number of buckets.
- *
- * This allows us to estimate the number of unique users by counting unique buckets,
- * while preserving user privacy and reducing cardinality.
- */
-const getUserBucket = memoize((): number => {
-  const userId = getOrCreateUserID()
-  const hash = createHash('sha256').update(userId).digest('hex')
-  return parseInt(hash.slice(0, 8), 16) % NUM_USER_BUCKETS
-})
-
-function getFlushIntervalMs(): number {
-  // Allow tests to override to not block on the default flush interval.
-  return (
-    parseInt(process.env.CLAUDE_CODE_DATADOG_FLUSH_INTERVAL_MS || '', 10) ||
-    DEFAULT_FLUSH_INTERVAL_MS
-  )
-}

src/services/analytics/firstPartyEventLogger.ts

@@ -1,449 +0,0 @@
-import type { AnyValueMap, Logger, logs } from '@opentelemetry/api-logs'
-import { resourceFromAttributes } from '@opentelemetry/resources'
-import {
-  BatchLogRecordProcessor,
-  LoggerProvider,
-} from '@opentelemetry/sdk-logs'
-import {
-  ATTR_SERVICE_NAME,
-  ATTR_SERVICE_VERSION,
-} from '@opentelemetry/semantic-conventions'
-import { randomUUID } from 'crypto'
-import { isEqual } from 'lodash-es'
-import { getOrCreateUserID } from '../../utils/config.js'
-import { logForDebugging } from '../../utils/debug.js'
-import { logError } from '../../utils/log.js'
-import { getPlatform, getWslVersion } from '../../utils/platform.js'
-import { jsonStringify } from '../../utils/slowOperations.js'
-import { profileCheckpoint } from '../../utils/startupProfiler.js'
-import { getCoreUserData } from '../../utils/user.js'
-import { isAnalyticsDisabled } from './config.js'
-import { FirstPartyEventLoggingExporter } from './firstPartyEventLoggingExporter.js'
-import type { GrowthBookUserAttributes } from './growthbook.js'
-import { getDynamicConfig_CACHED_MAY_BE_STALE } from './growthbook.js'
-import { getEventMetadata } from './metadata.js'
-import { isSinkKilled } from './sinkKillswitch.js'
-
-/**
- * Configuration for sampling individual event types.
- * Each event name maps to an object containing sample_rate (0-1).
- * Events not in the config are logged at 100% rate.
- */
-export type EventSamplingConfig = {
-  [eventName: string]: {
-    sample_rate: number
-  }
-}
-
-const EVENT_SAMPLING_CONFIG_NAME = 'tengu_event_sampling_config'
-/**
- * Get the event sampling configuration from GrowthBook.
- * Uses cached value if available, updates cache in background.
- */
-export function getEventSamplingConfig(): EventSamplingConfig {
-  return getDynamicConfig_CACHED_MAY_BE_STALE<EventSamplingConfig>(
-    EVENT_SAMPLING_CONFIG_NAME,
-    {},
-  )
-}
-
-/**
- * Determine if an event should be sampled based on its sample rate.
- * Returns the sample rate if sampled, null if not sampled.
- *
- * @param eventName - Name of the event to check
- * @returns The sample_rate if event should be logged, null if it should be dropped
- */
-export function shouldSampleEvent(eventName: string): number | null {
-  const config = getEventSamplingConfig()
-  const eventConfig = config[eventName]
-
-  // If no config for this event, log at 100% rate (no sampling)
-  if (!eventConfig) {
-    return null
-  }
-
-  const sampleRate = eventConfig.sample_rate
-
-  // Validate sample rate is in valid range
-  if (typeof sampleRate !== 'number' || sampleRate < 0 || sampleRate > 1) {
-    return null
-  }
-
-  // Sample rate of 1 means log everything (no need to add metadata)
-  if (sampleRate >= 1) {
-    return null
-  }
-
-  // Sample rate of 0 means drop everything
-  if (sampleRate <= 0) {
-    return 0
-  }
-
-  // Randomly decide whether to sample this event
-  return Math.random() < sampleRate ? sampleRate : 0
-}
-
-const BATCH_CONFIG_NAME = 'tengu_1p_event_batch_config'
-type BatchConfig = {
-  scheduledDelayMillis?: number
-  maxExportBatchSize?: number
-  maxQueueSize?: number
-  skipAuth?: boolean
-  maxAttempts?: number
-  path?: string
-  baseUrl?: string
-}
-function getBatchConfig(): BatchConfig {
-  return getDynamicConfig_CACHED_MAY_BE_STALE<BatchConfig>(
-    BATCH_CONFIG_NAME,
-    {},
-  )
-}
-
-// Module-local state for event logging (not exposed globally)
-let firstPartyEventLogger: ReturnType<typeof logs.getLogger> | null = null
-let firstPartyEventLoggerProvider: LoggerProvider | null = null
-// Last batch config used to construct the provider — used by
-// reinitialize1PEventLoggingIfConfigChanged to decide whether a rebuild is
-// needed when GrowthBook refreshes.
-let lastBatchConfig: BatchConfig | null = null
-/**
- * Flush and shutdown the 1P event logger.
- * This should be called as the final step before process exit to ensure
- * all events (including late ones from API responses) are exported.
- */
-export async function shutdown1PEventLogging(): Promise<void> {
-  if (!firstPartyEventLoggerProvider) {
-    return
-  }
-  try {
-    await firstPartyEventLoggerProvider.shutdown()
-    if (process.env.USER_TYPE === 'ant') {
-      logForDebugging('1P event logging: final shutdown complete')
-    }
-  } catch {
-    // Ignore shutdown errors
-  }
-}
-
-/**
- * Check if 1P event logging is enabled.
- * Respects the same opt-outs as other analytics sinks:
- * - Test environment
- * - Third-party cloud providers (Bedrock/Vertex)
- * - Global telemetry opt-outs
- * - Non-essential traffic disabled
- *
- * Note: Unlike BigQuery metrics, event logging does NOT check organization-level
- * metrics opt-out via API. It follows the same pattern as Statsig event logging.
- */
-export function is1PEventLoggingEnabled(): boolean {
-  // Respect standard analytics opt-outs
-  return !isAnalyticsDisabled()
-}
-
-/**
- * Log a 1st-party event for internal analytics (async version).
- * Events are batched and exported to /api/event_logging/batch
- *
- * This enriches the event with core metadata (model, session, env context, etc.)
- * at log time, similar to logEventToStatsig.
- *
- * @param eventName - Name of the event (e.g., 'tengu_api_query')
- * @param metadata - Additional metadata for the event (intentionally no strings, to avoid accidentally logging code/filepaths)
- */
-async function logEventTo1PAsync(
-  firstPartyEventLogger: Logger,
-  eventName: string,
-  metadata: Record<string, number | boolean | undefined> = {},
-): Promise<void> {
-  try {
-    // Enrich with core metadata at log time (similar to Statsig pattern)
-    const coreMetadata = await getEventMetadata({
-      model: metadata.model,
-      betas: metadata.betas,
-    })
-
-    // Build attributes - OTel supports nested objects natively via AnyValueMap
-    // Cast through unknown since our nested objects are structurally compatible
-    // with AnyValue but TS doesn't recognize it due to missing index signatures
-    const attributes = {
-      event_name: eventName,
-      event_id: randomUUID(),
-      // Pass objects directly - no JSON serialization needed
-      core_metadata: coreMetadata,
-      user_metadata: getCoreUserData(true),
-      event_metadata: metadata,
-    } as unknown as AnyValueMap
-
-    // Add user_id if available
-    const userId = getOrCreateUserID()
-    if (userId) {
-      attributes.user_id = userId
-    }
-
-    // Debug logging when debug mode is enabled
-    if (process.env.USER_TYPE === 'ant') {
-      logForDebugging(
-        `[ANT-ONLY] 1P event: ${eventName} ${jsonStringify(metadata, null, 0)}`,
-      )
-    }
-
-    // Emit log record
-    firstPartyEventLogger.emit({
-      body: eventName,
-      attributes,
-    })
-  } catch (e) {
-    if (process.env.NODE_ENV === 'development') {
-      throw e
-    }
-    if (process.env.USER_TYPE === 'ant') {
-      logError(e as Error)
-    }
-    // swallow
-  }
-}
-
-/**
- * Log a 1st-party event for internal analytics.
- * Events are batched and exported to /api/event_logging/batch
- *
- * @param eventName - Name of the event (e.g., 'tengu_api_query')
- * @param metadata - Additional metadata for the event (intentionally no strings, to avoid accidentally logging code/filepaths)
- */
-export function logEventTo1P(
-  eventName: string,
-  metadata: Record<string, number | boolean | undefined> = {},
-): void {
-  if (!is1PEventLoggingEnabled()) {
-    return
-  }
-
-  if (!firstPartyEventLogger || isSinkKilled('firstParty')) {
-    return
-  }
-
-  // Fire and forget - don't block on metadata enrichment
-  void logEventTo1PAsync(firstPartyEventLogger, eventName, metadata)
-}
-
-/**
- * GrowthBook experiment event data for logging
- */
-export type GrowthBookExperimentData = {
-  experimentId: string
-  variationId: number
-  userAttributes?: GrowthBookUserAttributes
-  experimentMetadata?: Record<string, unknown>
-}
-
-// api.anthropic.com only serves the "production" GrowthBook environment
-// (see starling/starling/cli/cli.py DEFAULT_ENVIRONMENTS). Staging and
-// development environments are not exported to the prod API.
-function getEnvironmentForGrowthBook(): string {
-  return 'production'
-}
-
-/**
- * Log a GrowthBook experiment assignment event to 1P.
- * Events are batched and exported to /api/event_logging/batch
- *
- * @param data - GrowthBook experiment assignment data
- */
-export function logGrowthBookExperimentTo1P(
-  data: GrowthBookExperimentData,
-): void {
-  if (!is1PEventLoggingEnabled()) {
-    return
-  }
-
-  if (!firstPartyEventLogger || isSinkKilled('firstParty')) {
-    return
-  }
-
-  const userId = getOrCreateUserID()
-  const { accountUuid, organizationUuid } = getCoreUserData(true)
-
-  // Build attributes for GrowthbookExperimentEvent
-  const attributes = {
-    event_type: 'GrowthbookExperimentEvent',
-    event_id: randomUUID(),
-    experiment_id: data.experimentId,
-    variation_id: data.variationId,
-    ...(userId && { device_id: userId }),
-    ...(accountUuid && { account_uuid: accountUuid }),
-    ...(organizationUuid && { organization_uuid: organizationUuid }),
-    ...(data.userAttributes && {
-      session_id: data.userAttributes.sessionId,
-      user_attributes: jsonStringify(data.userAttributes),
-    }),
-    ...(data.experimentMetadata && {
-      experiment_metadata: jsonStringify(data.experimentMetadata),
-    }),
-    environment: getEnvironmentForGrowthBook(),
-  }
-
-  if (process.env.USER_TYPE === 'ant') {
-    logForDebugging(
-      `[ANT-ONLY] 1P GrowthBook experiment: ${data.experimentId} variation=${data.variationId}`,
-    )
-  }
-
-  firstPartyEventLogger.emit({
-    body: 'growthbook_experiment',
-    attributes,
-  })
-}
-
-const DEFAULT_LOGS_EXPORT_INTERVAL_MS = 10000
-const DEFAULT_MAX_EXPORT_BATCH_SIZE = 200
-const DEFAULT_MAX_QUEUE_SIZE = 8192
-
-/**
- * Initialize 1P event logging infrastructure.
- * This creates a separate LoggerProvider for internal event logging,
- * independent of customer OTLP telemetry.
- *
- * This uses its own minimal resource configuration with just the attributes
- * we need for internal analytics (service name, version, platform info).
- */
-export function initialize1PEventLogging(): void {
-  profileCheckpoint('1p_event_logging_start')
-  const enabled = is1PEventLoggingEnabled()
-
-  if (!enabled) {
-    if (process.env.USER_TYPE === 'ant') {
-      logForDebugging('1P event logging not enabled')
-    }
-    return
-  }
-
-  // Fetch batch processor configuration from GrowthBook dynamic config
-  // Uses cached value if available, refreshes in background
-  const batchConfig = getBatchConfig()
-  lastBatchConfig = batchConfig
-  profileCheckpoint('1p_event_after_growthbook_config')
-
-  const scheduledDelayMillis =
-    batchConfig.scheduledDelayMillis ||
-    parseInt(
-      process.env.OTEL_LOGS_EXPORT_INTERVAL ||
-        DEFAULT_LOGS_EXPORT_INTERVAL_MS.toString(),
-    )
-
-  const maxExportBatchSize =
-    batchConfig.maxExportBatchSize || DEFAULT_MAX_EXPORT_BATCH_SIZE
-
-  const maxQueueSize = batchConfig.maxQueueSize || DEFAULT_MAX_QUEUE_SIZE
-
-  // Build our own resource for 1P event logging with minimal attributes
-  const platform = getPlatform()
-  const attributes: Record<string, string> = {
-    [ATTR_SERVICE_NAME]: 'claude-code',
-    [ATTR_SERVICE_VERSION]: MACRO.VERSION,
-  }
-
-  // Add WSL-specific attributes if running on WSL
-  if (platform === 'wsl') {
-    const wslVersion = getWslVersion()
-    if (wslVersion) {
-      attributes['wsl.version'] = wslVersion
-    }
-  }
-
-  const resource = resourceFromAttributes(attributes)
-
-  // Create a new LoggerProvider with the EventLoggingExporter
-  // NOTE: This is kept separate from customer telemetry logs to ensure
-  // internal events don't leak to customer endpoints and vice versa.
-  // We don't register this globally - it's only used for internal event logging.
-  const eventLoggingExporter = new FirstPartyEventLoggingExporter({
-    maxBatchSize: maxExportBatchSize,
-    skipAuth: batchConfig.skipAuth,
-    maxAttempts: batchConfig.maxAttempts,
-    path: batchConfig.path,
-    baseUrl: batchConfig.baseUrl,
-    isKilled: () => isSinkKilled('firstParty'),
-  })
-  firstPartyEventLoggerProvider = new LoggerProvider({
-    resource,
-    processors: [
-      new BatchLogRecordProcessor(eventLoggingExporter, {
-        scheduledDelayMillis,
-        maxExportBatchSize,
-        maxQueueSize,
-      }),
-    ],
-  })
-
-  // Initialize event logger from our internal provider (NOT from global API)
-  // IMPORTANT: We must get the logger from our local provider, not logs.getLogger()
-  // because logs.getLogger() returns a logger from the global provider, which is
-  // separate and used for customer telemetry.
-  firstPartyEventLogger = firstPartyEventLoggerProvider.getLogger(
-    'com.anthropic.claude_code.events',
-    MACRO.VERSION,
-  )
-}
-
-/**
- * Rebuild the 1P event logging pipeline if the batch config changed.
- * Register this with onGrowthBookRefresh so long-running sessions pick up
- * changes to batch size, delay, endpoint, etc.
- *
- * Event-loss safety:
- * 1. Null the logger first — concurrent logEventTo1P() calls hit the
- *    !firstPartyEventLogger guard and bail during the swap window. This drops
- *    a handful of events but prevents emitting to a draining provider.
- * 2. forceFlush() drains the old BatchLogRecordProcessor buffer to the
- *    exporter. Export failures go to disk at getCurrentBatchFilePath() which
- *    is keyed by module-level BATCH_UUID + sessionId — unchanged across
- *    reinit — so the NEW exporter's disk-backed retry picks them up.
- * 3. Swap to new provider/logger; old provider shutdown runs in background
- *    (buffer already drained, just cleanup).
- */
-export async function reinitialize1PEventLoggingIfConfigChanged(): Promise<void> {
-  if (!is1PEventLoggingEnabled() || !firstPartyEventLoggerProvider) {
-    return
-  }
-
-  const newConfig = getBatchConfig()
-
-  if (isEqual(newConfig, lastBatchConfig)) {
-    return
-  }
-
-  if (process.env.USER_TYPE === 'ant') {
-    logForDebugging(
-      `1P event logging: ${BATCH_CONFIG_NAME} changed, reinitializing`,
-    )
-  }
-
-  const oldProvider = firstPartyEventLoggerProvider
-  const oldLogger = firstPartyEventLogger
-  firstPartyEventLogger = null
-
-  try {
-    await oldProvider.forceFlush()
-  } catch {
-    // Export failures are already on disk; new exporter will retry them.
-  }
-
-  firstPartyEventLoggerProvider = null
-  try {
-    initialize1PEventLogging()
-  } catch (e) {
-    // Restore so the next GrowthBook refresh can retry. oldProvider was
-    // only forceFlush()'d, not shut down — it's still functional. Without
-    // this, both stay null and the !firstPartyEventLoggerProvider gate at
-    // the top makes recovery impossible.
-    firstPartyEventLoggerProvider = oldProvider
-    firstPartyEventLogger = oldLogger
-    logError(e)
-    return
-  }
-
-  void oldProvider.shutdown().catch(() => {})
-}

src/services/analytics/firstPartyEventLoggingExporter.ts

@@ -1,806 +0,0 @@
-import type { HrTime } from '@opentelemetry/api'
-import { type ExportResult, ExportResultCode } from '@opentelemetry/core'
-import type {
-  LogRecordExporter,
-  ReadableLogRecord,
-} from '@opentelemetry/sdk-logs'
-import axios from 'axios'
-import { randomUUID } from 'crypto'
-import { appendFile, mkdir, readdir, unlink, writeFile } from 'fs/promises'
-import * as path from 'path'
-import type { CoreUserData } from 'src/utils/user.js'
-import {
-  getIsNonInteractiveSession,
-  getSessionId,
-} from '../../bootstrap/state.js'
-import { ClaudeCodeInternalEvent } from '../../types/generated/events_mono/claude_code/v1/claude_code_internal_event.js'
-import { GrowthbookExperimentEvent } from '../../types/generated/events_mono/growthbook/v1/growthbook_experiment_event.js'
-import {
-  getClaudeAIOAuthTokens,
-  hasProfileScope,
-  isClaudeAISubscriber,
-} from '../../utils/auth.js'
-import { checkHasTrustDialogAccepted } from '../../utils/config.js'
-import { logForDebugging } from '../../utils/debug.js'
-import { getClaudeConfigHomeDir } from '../../utils/envUtils.js'
-import { errorMessage, isFsInaccessible, toError } from '../../utils/errors.js'
-import { getAuthHeaders } from '../../utils/http.js'
-import { readJSONLFile } from '../../utils/json.js'
-import { logError } from '../../utils/log.js'
-import { sleep } from '../../utils/sleep.js'
-import { jsonStringify } from '../../utils/slowOperations.js'
-import { getClaudeCodeUserAgent } from '../../utils/userAgent.js'
-import { isOAuthTokenExpired } from '../oauth/client.js'
-import { stripProtoFields } from './index.js'
-import { type EventMetadata, to1PEventFormat } from './metadata.js'
-
-// Unique ID for this process run - used to isolate failed event files between runs
-const BATCH_UUID = randomUUID()
-
-// File prefix for failed event storage
-const FILE_PREFIX = '1p_failed_events.'
-
-// Storage directory for failed events - evaluated at runtime to respect CLAUDE_CONFIG_DIR in tests
-function getStorageDir(): string {
-  return path.join(getClaudeConfigHomeDir(), 'telemetry')
-}
-
-// API envelope - event_data is the JSON output from proto toJSON()
-type FirstPartyEventLoggingEvent = {
-  event_type: 'ClaudeCodeInternalEvent' | 'GrowthbookExperimentEvent'
-  event_data: unknown
-}
-
-type FirstPartyEventLoggingPayload = {
-  events: FirstPartyEventLoggingEvent[]
-}
-
-/**
- * Exporter for 1st-party event logging to /api/event_logging/batch.
- *
- * Export cycles are controlled by OpenTelemetry's BatchLogRecordProcessor, which
- * triggers export() when either:
- * - Time interval elapses (default: 5 seconds via scheduledDelayMillis)
- * - Batch size is reached (default: 200 events via maxExportBatchSize)
- *
- * This exporter adds resilience on top:
- * - Append-only log for failed events (concurrency-safe)
- * - Quadratic backoff retry for failed events, dropped after maxAttempts
- * - Immediate retry of queued events when any export succeeds (endpoint is healthy)
- * - Chunking large event sets into smaller batches
- * - Auth fallback: retries without auth on 401 errors
- */
-export class FirstPartyEventLoggingExporter implements LogRecordExporter {
-  private readonly endpoint: string
-  private readonly timeout: number
-  private readonly maxBatchSize: number
-  private readonly skipAuth: boolean
-  private readonly batchDelayMs: number
-  private readonly baseBackoffDelayMs: number
-  private readonly maxBackoffDelayMs: number
-  private readonly maxAttempts: number
-  private readonly isKilled: () => boolean
-  private pendingExports: Promise<void>[] = []
-  private isShutdown = false
-  private readonly schedule: (
-    fn: () => Promise<void>,
-    delayMs: number,
-  ) => () => void
-  private cancelBackoff: (() => void) | null = null
-  private attempts = 0
-  private isRetrying = false
-  private lastExportErrorContext: string | undefined
-
-  constructor(
-    options: {
-      timeout?: number
-      maxBatchSize?: number
-      skipAuth?: boolean
-      batchDelayMs?: number
-      baseBackoffDelayMs?: number
-      maxBackoffDelayMs?: number
-      maxAttempts?: number
-      path?: string
-      baseUrl?: string
-      // Injected killswitch probe. Checked per-POST so that disabling the
-      // firstParty sink also stops backoff retries (not just new emits).
-      // Passed in rather than imported to avoid a cycle with firstPartyEventLogger.ts.
-      isKilled?: () => boolean
-      schedule?: (fn: () => Promise<void>, delayMs: number) => () => void
-    } = {},
-  ) {
-    // Default: prod, except when ANTHROPIC_BASE_URL is explicitly staging.
-    // Overridable via tengu_1p_event_batch_config.baseUrl.
-    const baseUrl =
-      options.baseUrl ||
-      (process.env.ANTHROPIC_BASE_URL === 'https://api-staging.anthropic.com'
-        ? 'https://api-staging.anthropic.com'
-        : 'https://api.anthropic.com')
-
-    this.endpoint = `${baseUrl}${options.path || '/api/event_logging/batch'}`
-
-    this.timeout = options.timeout || 10000
-    this.maxBatchSize = options.maxBatchSize || 200
-    this.skipAuth = options.skipAuth ?? false
-    this.batchDelayMs = options.batchDelayMs || 100
-    this.baseBackoffDelayMs = options.baseBackoffDelayMs || 500
-    this.maxBackoffDelayMs = options.maxBackoffDelayMs || 30000
-    this.maxAttempts = options.maxAttempts ?? 8
-    this.isKilled = options.isKilled ?? (() => false)
-    this.schedule =
-      options.schedule ??
-      ((fn, ms) => {
-        const t = setTimeout(fn, ms)
-        return () => clearTimeout(t)
-      })
-
-    // Retry any failed events from previous runs of this session (in background)
-    void this.retryPreviousBatches()
-  }
-
-  // Expose for testing
-  async getQueuedEventCount(): Promise<number> {
-    return (await this.loadEventsFromCurrentBatch()).length
-  }
-
-  // --- Storage helpers ---
-
-  private getCurrentBatchFilePath(): string {
-    return path.join(
-      getStorageDir(),
-      `${FILE_PREFIX}${getSessionId()}.${BATCH_UUID}.json`,
-    )
-  }
-
-  private async loadEventsFromFile(
-    filePath: string,
-  ): Promise<FirstPartyEventLoggingEvent[]> {
-    try {
-      return await readJSONLFile<FirstPartyEventLoggingEvent>(filePath)
-    } catch {
-      return []
-    }
-  }
-
-  private async loadEventsFromCurrentBatch(): Promise<
-    FirstPartyEventLoggingEvent[]
-  > {
-    return this.loadEventsFromFile(this.getCurrentBatchFilePath())
-  }
-
-  private async saveEventsToFile(
-    filePath: string,
-    events: FirstPartyEventLoggingEvent[],
-  ): Promise<void> {
-    try {
-      if (events.length === 0) {
-        try {
-          await unlink(filePath)
-        } catch {
-          // File doesn't exist, nothing to delete
-        }
-      } else {
-        // Ensure storage directory exists
-        await mkdir(getStorageDir(), { recursive: true })
-        // Write as JSON lines (one event per line)
-        const content = events.map(e => jsonStringify(e)).join('\n') + '\n'
-        await writeFile(filePath, content, 'utf8')
-      }
-    } catch (error) {
-      logError(error)
-    }
-  }
-
-  private async appendEventsToFile(
-    filePath: string,
-    events: FirstPartyEventLoggingEvent[],
-  ): Promise<void> {
-    if (events.length === 0) return
-    try {
-      // Ensure storage directory exists
-      await mkdir(getStorageDir(), { recursive: true })
-      // Append as JSON lines (one event per line) - atomic on most filesystems
-      const content = events.map(e => jsonStringify(e)).join('\n') + '\n'
-      await appendFile(filePath, content, 'utf8')
-    } catch (error) {
-      logError(error)
-    }
-  }
-
-  private async deleteFile(filePath: string): Promise<void> {
-    try {
-      await unlink(filePath)
-    } catch {
-      // File doesn't exist or can't be deleted, ignore
-    }
-  }
-
-  // --- Previous batch retry (startup) ---
-
-  private async retryPreviousBatches(): Promise<void> {
-    try {
-      const prefix = `${FILE_PREFIX}${getSessionId()}.`
-      let files: string[]
-      try {
-        files = (await readdir(getStorageDir()))
-          .filter((f: string) => f.startsWith(prefix) && f.endsWith('.json'))
-          .filter((f: string) => !f.includes(BATCH_UUID)) // Exclude current batch
-      } catch (e) {
-        if (isFsInaccessible(e)) return
-        throw e
-      }
-
-      for (const file of files) {
-        const filePath = path.join(getStorageDir(), file)
-        void this.retryFileInBackground(filePath)
-      }
-    } catch (error) {
-      logError(error)
-    }
-  }
-
-  private async retryFileInBackground(filePath: string): Promise<void> {
-    if (this.attempts >= this.maxAttempts) {
-      await this.deleteFile(filePath)
-      return
-    }
-
-    const events = await this.loadEventsFromFile(filePath)
-    if (events.length === 0) {
-      await this.deleteFile(filePath)
-      return
-    }
-
-    if (process.env.USER_TYPE === 'ant') {
-      logForDebugging(
-        `1P event logging: retrying ${events.length} events from previous batch`,
-      )
-    }
-
-    const failedEvents = await this.sendEventsInBatches(events)
-    if (failedEvents.length === 0) {
-      await this.deleteFile(filePath)
-      if (process.env.USER_TYPE === 'ant') {
-        logForDebugging('1P event logging: previous batch retry succeeded')
-      }
-    } else {
-      // Save only the failed events back (not all original events)
-      await this.saveEventsToFile(filePath, failedEvents)
-      if (process.env.USER_TYPE === 'ant') {
-        logForDebugging(
-          `1P event logging: previous batch retry failed, ${failedEvents.length} events remain`,
-        )
-      }
-    }
-  }
-
-  async export(
-    logs: ReadableLogRecord[],
-    resultCallback: (result: ExportResult) => void,
-  ): Promise<void> {
-    if (this.isShutdown) {
-      if (process.env.USER_TYPE === 'ant') {
-        logForDebugging(
-          '1P event logging export failed: Exporter has been shutdown',
-        )
-      }
-      resultCallback({
-        code: ExportResultCode.FAILED,
-        error: new Error('Exporter has been shutdown'),
-      })
-      return
-    }
-
-    const exportPromise = this.doExport(logs, resultCallback)
-    this.pendingExports.push(exportPromise)
-
-    // Clean up completed exports
-    void exportPromise.finally(() => {
-      const index = this.pendingExports.indexOf(exportPromise)
-      if (index > -1) {
-        void this.pendingExports.splice(index, 1)
-      }
-    })
-  }
-
-  private async doExport(
-    logs: ReadableLogRecord[],
-    resultCallback: (result: ExportResult) => void,
-  ): Promise<void> {
-    try {
-      // Filter for event logs only (by scope name)
-      const eventLogs = logs.filter(
-        log =>
-          log.instrumentationScope?.name === 'com.anthropic.claude_code.events',
-      )
-
-      if (eventLogs.length === 0) {
-        resultCallback({ code: ExportResultCode.SUCCESS })
-        return
-      }
-
-      // Transform new logs (failed events are retried independently via backoff)
-      const events = this.transformLogsToEvents(eventLogs).events
-
-      if (events.length === 0) {
-        resultCallback({ code: ExportResultCode.SUCCESS })
-        return
-      }
-
-      if (this.attempts >= this.maxAttempts) {
-        resultCallback({
-          code: ExportResultCode.FAILED,
-          error: new Error(
-            `Dropped ${events.length} events: max attempts (${this.maxAttempts}) reached`,
-          ),
-        })
-        return
-      }
-
-      // Send events
-      const failedEvents = await this.sendEventsInBatches(events)
-      this.attempts++
-
-      if (failedEvents.length > 0) {
-        await this.queueFailedEvents(failedEvents)
-        this.scheduleBackoffRetry()
-        const context = this.lastExportErrorContext
-          ? ` (${this.lastExportErrorContext})`
-          : ''
-        resultCallback({
-          code: ExportResultCode.FAILED,
-          error: new Error(
-            `Failed to export ${failedEvents.length} events${context}`,
-          ),
-        })
-        return
-      }
-
-      // Success - reset backoff and immediately retry any queued events
-      this.resetBackoff()
-      if ((await this.getQueuedEventCount()) > 0 && !this.isRetrying) {
-        void this.retryFailedEvents()
-      }
-      resultCallback({ code: ExportResultCode.SUCCESS })
-    } catch (error) {
-      if (process.env.USER_TYPE === 'ant') {
-        logForDebugging(
-          `1P event logging export failed: ${errorMessage(error)}`,
-        )
-      }
-      logError(error)
-      resultCallback({
-        code: ExportResultCode.FAILED,
-        error: toError(error),
-      })
-    }
-  }
-
-  private async sendEventsInBatches(
-    events: FirstPartyEventLoggingEvent[],
-  ): Promise<FirstPartyEventLoggingEvent[]> {
-    // Chunk events into batches
-    const batches: FirstPartyEventLoggingEvent[][] = []
-    for (let i = 0; i < events.length; i += this.maxBatchSize) {
-      batches.push(events.slice(i, i + this.maxBatchSize))
-    }
-
-    if (process.env.USER_TYPE === 'ant') {
-      logForDebugging(
-        `1P event logging: exporting ${events.length} events in ${batches.length} batch(es)`,
-      )
-    }
-
-    // Send each batch with delay between them. On first failure, assume the
-    // endpoint is down and short-circuit: queue the failed batch plus all
-    // remaining unsent batches without POSTing them. The backoff retry will
-    // probe again with a single batch next tick.
-    const failedBatchEvents: FirstPartyEventLoggingEvent[] = []
-    let lastErrorContext: string | undefined
-    for (let i = 0; i < batches.length; i++) {
-      const batch = batches[i]!
-      try {
-        await this.sendBatchWithRetry({ events: batch })
-      } catch (error) {
-        lastErrorContext = getAxiosErrorContext(error)
-        for (let j = i; j < batches.length; j++) {
-          failedBatchEvents.push(...batches[j]!)
-        }
-        if (process.env.USER_TYPE === 'ant') {
-          const skipped = batches.length - 1 - i
-          logForDebugging(
-            `1P event logging: batch ${i + 1}/${batches.length} failed (${lastErrorContext}); short-circuiting ${skipped} remaining batch(es)`,
-          )
-        }
-        break
-      }
-
-      if (i < batches.length - 1 && this.batchDelayMs > 0) {
-        await sleep(this.batchDelayMs)
-      }
-    }
-
-    if (failedBatchEvents.length > 0 && lastErrorContext) {
-      this.lastExportErrorContext = lastErrorContext
-    }
-
-    return failedBatchEvents
-  }
-
-  private async queueFailedEvents(
-    events: FirstPartyEventLoggingEvent[],
-  ): Promise<void> {
-    const filePath = this.getCurrentBatchFilePath()
-
-    // Append-only: just add new events to file (atomic on most filesystems)
-    await this.appendEventsToFile(filePath, events)
-
-    const context = this.lastExportErrorContext
-      ? ` (${this.lastExportErrorContext})`
-      : ''
-    const message = `1P event logging: ${events.length} events failed to export${context}`
-    logError(new Error(message))
-  }
-
-  private scheduleBackoffRetry(): void {
-    // Don't schedule if already retrying or shutdown
-    if (this.cancelBackoff || this.isRetrying || this.isShutdown) {
-      return
-    }
-
-    // Quadratic backoff (matching Statsig SDK): base * attempts²
-    const delay = Math.min(
-      this.baseBackoffDelayMs * this.attempts * this.attempts,
-      this.maxBackoffDelayMs,
-    )
-
-    if (process.env.USER_TYPE === 'ant') {
-      logForDebugging(
-        `1P event logging: scheduling backoff retry in ${delay}ms (attempt ${this.attempts})`,
-      )
-    }
-
-    this.cancelBackoff = this.schedule(async () => {
-      this.cancelBackoff = null
-      await this.retryFailedEvents()
-    }, delay)
-  }
-
-  private async retryFailedEvents(): Promise<void> {
-    const filePath = this.getCurrentBatchFilePath()
-
-    // Keep retrying while there are events and endpoint is healthy
-    while (!this.isShutdown) {
-      const events = await this.loadEventsFromFile(filePath)
-      if (events.length === 0) break
-
-      if (this.attempts >= this.maxAttempts) {
-        if (process.env.USER_TYPE === 'ant') {
-          logForDebugging(
-            `1P event logging: max attempts (${this.maxAttempts}) reached, dropping ${events.length} events`,
-          )
-        }
-        await this.deleteFile(filePath)
-        this.resetBackoff()
-        return
-      }
-
-      this.isRetrying = true
-
-      // Clear file before retry (we have events in memory now)
-      await this.deleteFile(filePath)
-
-      if (process.env.USER_TYPE === 'ant') {
-        logForDebugging(
-          `1P event logging: retrying ${events.length} failed events (attempt ${this.attempts + 1})`,
-        )
-      }
-
-      const failedEvents = await this.sendEventsInBatches(events)
-      this.attempts++
-
-      this.isRetrying = false
-
-      if (failedEvents.length > 0) {
-        // Write failures back to disk
-        await this.saveEventsToFile(filePath, failedEvents)
-        this.scheduleBackoffRetry()
-        return // Failed - wait for backoff
-      }
-
-      // Success - reset backoff and continue loop to drain any newly queued events
-      this.resetBackoff()
-      if (process.env.USER_TYPE === 'ant') {
-        logForDebugging('1P event logging: backoff retry succeeded')
-      }
-    }
-  }
-
-  private resetBackoff(): void {
-    this.attempts = 0
-    if (this.cancelBackoff) {
-      this.cancelBackoff()
-      this.cancelBackoff = null
-    }
-  }
-
-  private async sendBatchWithRetry(
-    payload: FirstPartyEventLoggingPayload,
-  ): Promise<void> {
-    if (this.isKilled()) {
-      // Throw so the caller short-circuits remaining batches and queues
-      // everything to disk. Zero network traffic while killed; the backoff
-      // timer keeps ticking and will resume POSTs as soon as the GrowthBook
-      // cache picks up the cleared flag.
-      throw new Error('firstParty sink killswitch active')
-    }
-
-    const baseHeaders: Record<string, string> = {
-      'Content-Type': 'application/json',
-      'User-Agent': getClaudeCodeUserAgent(),
-      'x-service-name': 'claude-code',
-    }
-
-    // Skip auth if trust hasn't been established yet
-    // This prevents executing apiKeyHelper commands before the trust dialog
-    // Non-interactive sessions implicitly have workspace trust
-    const hasTrust =
-      checkHasTrustDialogAccepted() || getIsNonInteractiveSession()
-    if (process.env.USER_TYPE === 'ant' && !hasTrust) {
-      logForDebugging('1P event logging: Trust not accepted')
-    }
-
-    // Skip auth when the OAuth token is expired or lacks user:profile
-    // scope (service key sessions). Falls through to unauthenticated send.
-    let shouldSkipAuth = this.skipAuth || !hasTrust
-    if (!shouldSkipAuth && isClaudeAISubscriber()) {
-      const tokens = getClaudeAIOAuthTokens()
-      if (!hasProfileScope()) {
-        shouldSkipAuth = true
-      } else if (tokens && isOAuthTokenExpired(tokens.expiresAt)) {
-        shouldSkipAuth = true
-        if (process.env.USER_TYPE === 'ant') {
-          logForDebugging(
-            '1P event logging: OAuth token expired, skipping auth to avoid 401',
-          )
-        }
-      }
-    }
-
-    // Try with auth headers first (unless trust not established or token is known to be expired)
-    const authResult = shouldSkipAuth
-      ? { headers: {}, error: 'trust not established or Oauth token expired' }
-      : getAuthHeaders()
-    const useAuth = !authResult.error
-
-    if (!useAuth && process.env.USER_TYPE === 'ant') {
-      logForDebugging(
-        `1P event logging: auth not available, sending without auth`,
-      )
-    }
-
-    const headers = useAuth
-      ? { ...baseHeaders, ...authResult.headers }
-      : baseHeaders
-
-    try {
-      const response = await axios.post(this.endpoint, payload, {
-        timeout: this.timeout,
-        headers,
-      })
-      this.logSuccess(payload.events.length, useAuth, response.data)
-      return
-    } catch (error) {
-      // Handle 401 by retrying without auth
-      if (
-        useAuth &&
-        axios.isAxiosError(error) &&
-        error.response?.status === 401
-      ) {
-        if (process.env.USER_TYPE === 'ant') {
-          logForDebugging(
-            '1P event logging: 401 auth error, retrying without auth',
-          )
-        }
-        const response = await axios.post(this.endpoint, payload, {
-          timeout: this.timeout,
-          headers: baseHeaders,
-        })
-        this.logSuccess(payload.events.length, false, response.data)
-        return
-      }
-
-      throw error
-    }
-  }
-
-  private logSuccess(
-    eventCount: number,
-    withAuth: boolean,
-    responseData: unknown,
-  ): void {
-    if (process.env.USER_TYPE === 'ant') {
-      logForDebugging(
-        `1P event logging: ${eventCount} events exported successfully${withAuth ? ' (with auth)' : ' (without auth)'}`,
-      )
-      logForDebugging(`API Response: ${jsonStringify(responseData, null, 2)}`)
-    }
-  }
-
-  private hrTimeToDate(hrTime: HrTime): Date {
-    const [seconds, nanoseconds] = hrTime
-    return new Date(seconds * 1000 + nanoseconds / 1000000)
-  }
-
-  private transformLogsToEvents(
-    logs: ReadableLogRecord[],
-  ): FirstPartyEventLoggingPayload {
-    const events: FirstPartyEventLoggingEvent[] = []
-
-    for (const log of logs) {
-      const attributes = log.attributes || {}
-
-      // Check if this is a GrowthBook experiment event
-      if (attributes.event_type === 'GrowthbookExperimentEvent') {
-        const timestamp = this.hrTimeToDate(log.hrTime)
-        const account_uuid = attributes.account_uuid as string | undefined
-        const organization_uuid = attributes.organization_uuid as
-          | string
-          | undefined
-        events.push({
-          event_type: 'GrowthbookExperimentEvent',
-          event_data: GrowthbookExperimentEvent.toJSON({
-            event_id: attributes.event_id as string,
-            timestamp,
-            experiment_id: attributes.experiment_id as string,
-            variation_id: attributes.variation_id as number,
-            environment: attributes.environment as string,
-            user_attributes: attributes.user_attributes as string,
-            experiment_metadata: attributes.experiment_metadata as string,
-            device_id: attributes.device_id as string,
-            session_id: attributes.session_id as string,
-            auth:
-              account_uuid || organization_uuid
-                ? { account_uuid, organization_uuid }
-                : undefined,
-          }),
-        })
-        continue
-      }
-
-      // Extract event name
-      const eventName =
-        (attributes.event_name as string) || (log.body as string) || 'unknown'
-
-      // Extract metadata objects directly (no JSON parsing needed)
-      const coreMetadata = attributes.core_metadata as EventMetadata | undefined
-      const userMetadata = attributes.user_metadata as CoreUserData
-      const eventMetadata = (attributes.event_metadata || {}) as Record<
-        string,
-        unknown
-      >
-
-      if (!coreMetadata) {
-        // Emit partial event if core metadata is missing
-        if (process.env.USER_TYPE === 'ant') {
-          logForDebugging(
-            `1P event logging: core_metadata missing for event ${eventName}`,
-          )
-        }
-        events.push({
-          event_type: 'ClaudeCodeInternalEvent',
-          event_data: ClaudeCodeInternalEvent.toJSON({
-            event_id: attributes.event_id as string | undefined,
-            event_name: eventName,
-            client_timestamp: this.hrTimeToDate(log.hrTime),
-            session_id: getSessionId(),
-            additional_metadata: Buffer.from(
-              jsonStringify({
-                transform_error: 'core_metadata attribute is missing',
-              }),
-            ).toString('base64'),
-          }),
-        })
-        continue
-      }
-
-      // Transform to 1P format
-      const formatted = to1PEventFormat(
-        coreMetadata,
-        userMetadata,
-        eventMetadata,
-      )
-
-      // _PROTO_* keys are PII-tagged values meant only for privileged BQ
-      // columns. Hoist known keys to proto fields, then defensively strip any
-      // remaining _PROTO_* so an unrecognized future key can't silently land
-      // in the general-access additional_metadata blob. sink.ts applies the
-      // same strip before Datadog; this closes the 1P side.
-      const {
-        _PROTO_skill_name,
-        _PROTO_plugin_name,
-        _PROTO_marketplace_name,
-        ...rest
-      } = formatted.additional
-      const additionalMetadata = stripProtoFields(rest)
-
-      events.push({
-        event_type: 'ClaudeCodeInternalEvent',
-        event_data: ClaudeCodeInternalEvent.toJSON({
-          event_id: attributes.event_id as string | undefined,
-          event_name: eventName,
-          client_timestamp: this.hrTimeToDate(log.hrTime),
-          device_id: attributes.user_id as string | undefined,
-          email: userMetadata?.email,
-          auth: formatted.auth,
-          ...formatted.core,
-          env: formatted.env,
-          process: formatted.process,
-          skill_name:
-            typeof _PROTO_skill_name === 'string'
-              ? _PROTO_skill_name
-              : undefined,
-          plugin_name:
-            typeof _PROTO_plugin_name === 'string'
-              ? _PROTO_plugin_name
-              : undefined,
-          marketplace_name:
-            typeof _PROTO_marketplace_name === 'string'
-              ? _PROTO_marketplace_name
-              : undefined,
-          additional_metadata:
-            Object.keys(additionalMetadata).length > 0
-              ? Buffer.from(jsonStringify(additionalMetadata)).toString(
-                  'base64',
-                )
-              : undefined,
-        }),
-      })
-    }
-
-    return { events }
-  }
-
-  async shutdown(): Promise<void> {
-    this.isShutdown = true
-    this.resetBackoff()
-    await this.forceFlush()
-    if (process.env.USER_TYPE === 'ant') {
-      logForDebugging('1P event logging exporter shutdown complete')
-    }
-  }
-
-  async forceFlush(): Promise<void> {
-    await Promise.all(this.pendingExports)
-    if (process.env.USER_TYPE === 'ant') {
-      logForDebugging('1P event logging exporter flush complete')
-    }
-  }
-}
-
-function getAxiosErrorContext(error: unknown): string {
-  if (!axios.isAxiosError(error)) {
-    return errorMessage(error)
-  }
-
-  const parts: string[] = []
-
-  const requestId = error.response?.headers?.['request-id']
-  if (requestId) {
-    parts.push(`request-id=${requestId}`)
-  }
-
-  if (error.response?.status) {
-    parts.push(`status=${error.response.status}`)
-  }
-
-  if (error.code) {
-    parts.push(`code=${error.code}`)
-  }
-
-  if (error.message) {
-    parts.push(error.message)
-  }
-
-  return parts.join(', ')
-}

src/services/analytics/index.test.ts

@@ -0,0 +1,32 @@
+import { describe, expect, it } from 'bun:test'
+
+import {
+  _resetForTesting,
+  attachAnalyticsSink,
+  logEvent,
+  logEventAsync,
+} from './index.js'
+
+describe('analytics compatibility boundary', () => {
+  it('stays inert even if a sink is attached', async () => {
+    let syncCalls = 0
+    let asyncCalls = 0
+
+    attachAnalyticsSink({
+      logEvent: () => {
+        syncCalls += 1
+      },
+      logEventAsync: async () => {
+        asyncCalls += 1
+      },
+    })
+
+    logEvent('tengu_test_event', {})
+    await logEventAsync('tengu_test_event_async', {})
+
+    expect(syncCalls).toBe(0)
+    expect(asyncCalls).toBe(0)
+
+    _resetForTesting()
+  })
+})

src/services/analytics/index.ts

@@ -1,11 +1,9 @@
 /**
  * Analytics service - public API for event logging
  *
- * This module serves as the main entry point for analytics events in Claude CLI.
- *
- * DESIGN: This module has NO dependencies to avoid import cycles.
- * Events are queued until attachAnalyticsSink() is called during app initialization.
- * The sink handles routing to Datadog and 1P event logging.
+ * The open build intentionally ships without product telemetry. We keep this
+ * module as a compatibility boundary so existing call sites can remain
+ * unchanged while all analytics become inert.
  */
 
 /**
@@ -19,53 +17,22 @@
 export type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS = never
 
 /**
- * Marker type for values routed to PII-tagged proto columns via `_PROTO_*`
- * payload keys. The destination BQ column has privileged access controls,
- * so unredacted values are acceptable — unlike general-access backends.
- *
- * sink.ts strips `_PROTO_*` keys before Datadog fanout; only the 1P
- * exporter (firstPartyEventLoggingExporter) sees them and hoists them to the
- * top-level proto field. A single stripProtoFields call guards all non-1P
- * sinks — no per-sink filtering to forget.
+ * Marker type for values that previously flowed to privileged `_PROTO_*`
+ * columns. The export remains so existing call sites keep their explicit
+ * privacy annotations even though external analytics export is disabled.
  *
  * Usage: `rawName as AnalyticsMetadata_I_VERIFIED_THIS_IS_PII_TAGGED`
  */
 export type AnalyticsMetadata_I_VERIFIED_THIS_IS_PII_TAGGED = never
 
-/**
- * Strip `_PROTO_*` keys from a payload destined for general-access storage.
- * Used by:
- *   - sink.ts: before Datadog fanout (never sees PII-tagged values)
- *   - firstPartyEventLoggingExporter: defensive strip of additional_metadata
- *     after hoisting known _PROTO_* keys to proto fields — prevents a future
- *     unrecognized _PROTO_foo from silently landing in the BQ JSON blob.
- *
- * Returns the input unchanged (same reference) when no _PROTO_ keys present.
- */
 export function stripProtoFields<V>(
   metadata: Record<string, V>,
 ): Record<string, V> {
-  let result: Record<string, V> | undefined
-  for (const key in metadata) {
-    if (key.startsWith('_PROTO_')) {
-      if (result === undefined) {
-        result = { ...metadata }
-      }
-      delete result[key]
-    }
-  }
-  return result ?? metadata
+  return metadata
 }
 
-// Internal type for logEvent metadata - different from the enriched EventMetadata in metadata.ts
 type LogEventMetadata = { [key: string]: boolean | number | undefined }
 
-type QueuedEvent = {
-  eventName: string
-  metadata: LogEventMetadata
-  async: boolean
-}
-
 /**
  * Sink interface for the analytics backend
  */
@@ -77,97 +44,26 @@ export type AnalyticsSink = {
   ) => Promise<void>
 }
 
-// Event queue for events logged before sink is attached
-const eventQueue: QueuedEvent[] = []
-
-// Sink - initialized during app startup
-let sink: AnalyticsSink | null = null
-
-/**
- * Attach the analytics sink that will receive all events.
- * Queued events are drained asynchronously via queueMicrotask to avoid
- * adding latency to the startup path.
- *
- * Idempotent: if a sink is already attached, this is a no-op. This allows
- * calling from both the preAction hook (for subcommands) and setup() (for
- * the default command) without coordination.
- */
-export function attachAnalyticsSink(newSink: AnalyticsSink): void {
-  if (sink !== null) {
-    return
-  }
-  sink = newSink
-
-  // Drain the queue asynchronously to avoid blocking startup
-  if (eventQueue.length > 0) {
-    const queuedEvents = [...eventQueue]
-    eventQueue.length = 0
-
-    // Log queue size for ants to help debug analytics initialization timing
-    if (process.env.USER_TYPE === 'ant') {
-      sink.logEvent('analytics_sink_attached', {
-        queued_event_count: queuedEvents.length,
-      })
-    }
-
-    queueMicrotask(() => {
-      for (const event of queuedEvents) {
-        if (event.async) {
-          void sink!.logEventAsync(event.eventName, event.metadata)
-        } else {
-          sink!.logEvent(event.eventName, event.metadata)
-        }
-      }
-    })
-  }
-}
+export function attachAnalyticsSink(_newSink: AnalyticsSink): void {}
 
 /**
  * Log an event to analytics backends (synchronous)
- *
- * Events may be sampled based on the 'tengu_event_sampling_config' dynamic config.
- * When sampled, the sample_rate is added to the event metadata.
- *
- * If no sink is attached, events are queued and drained when the sink attaches.
  */
 export function logEvent(
-  eventName: string,
-  // intentionally no strings unless AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
-  // to avoid accidentally logging code/filepaths
-  metadata: LogEventMetadata,
-): void {
-  if (sink === null) {
-    eventQueue.push({ eventName, metadata, async: false })
-    return
-  }
-  sink.logEvent(eventName, metadata)
-}
+  _eventName: string,
+  _metadata: LogEventMetadata,
+): void {}
 
 /**
  * Log an event to analytics backends (asynchronous)
- *
- * Events may be sampled based on the 'tengu_event_sampling_config' dynamic config.
- * When sampled, the sample_rate is added to the event metadata.
- *
- * If no sink is attached, events are queued and drained when the sink attaches.
  */
 export async function logEventAsync(
-  eventName: string,
-  // intentionally no strings, to avoid accidentally logging code/filepaths
-  metadata: LogEventMetadata,
-): Promise<void> {
-  if (sink === null) {
-    eventQueue.push({ eventName, metadata, async: true })
-    return
-  }
-  await sink.logEventAsync(eventName, metadata)
-}
+  _eventName: string,
+  _metadata: LogEventMetadata,
+): Promise<void> {}
 
 /**
  * Reset analytics state for testing purposes only.
  * @internal
  */
-export function _resetForTesting(): void {
-  sink = null
-  eventQueue.length = 0
-}
+export function _resetForTesting(): void {}

src/services/analytics/metadata.ts

@@ -1,72 +1,13 @@
-// biome-ignore-all assist/source/organizeImports: ANT-ONLY import markers must not be reordered
-/**
- * Shared event metadata enrichment for analytics systems
- *
- * This module provides a single source of truth for collecting and formatting
- * event metadata across all analytics systems (Datadog, 1P).
- */
-
 import { extname } from 'path'
-import memoize from 'lodash-es/memoize.js'
-import { env, getHostPlatformForAnalytics } from '../../utils/env.js'
-import { envDynamic } from '../../utils/envDynamic.js'
-import { getModelBetas } from '../../utils/betas.js'
-import { getMainLoopModel } from '../../utils/model/model.js'
-import {
-  getSessionId,
-  getIsInteractive,
-  getKairosActive,
-  getClientType,
-  getParentSessionId as getParentSessionIdFromState,
-} from '../../bootstrap/state.js'
-import { isEnvTruthy } from '../../utils/envUtils.js'
-import { isOfficialMcpUrl } from '../mcp/officialRegistry.js'
-import { isClaudeAISubscriber, getSubscriptionType } from '../../utils/auth.js'
-import { getRepoRemoteHash } from '../../utils/git.js'
-import {
-  getWslVersion,
-  getLinuxDistroInfo,
-  detectVcs,
-} from '../../utils/platform.js'
-import type { CoreUserData } from 'src/utils/user.js'
-import { getAgentContext } from '../../utils/agentContext.js'
-import type { EnvironmentMetadata } from '../../types/generated/events_mono/claude_code/v1/claude_code_internal_event.js'
-import type { PublicApiAuth } from '../../types/generated/events_mono/common/v1/auth.js'
-import { jsonStringify } from '../../utils/slowOperations.js'
-import {
-  getAgentId,
-  getParentSessionId as getTeammateParentSessionId,
-  getTeamName,
-  isTeammate,
-} from '../../utils/teammate.js'
-import { feature } from 'bun:bundle'
+import { type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS } from './index.js'
 
 /**
- * Marker type for verifying analytics metadata doesn't contain sensitive data
- *
- * This type forces explicit verification that string values being logged
- * don't contain code snippets, file paths, or other sensitive information.
- *
- * The metadata is expected to be JSON-serializable.
- *
- * Usage: `myString as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS`
- *
- * The type is `never` which means it can never actually hold a value - this is
- * intentional as it's only used for type-casting to document developer intent.
+ * Local-only analytics helpers retained for compatibility after telemetry
+ * export removal. These helpers only sanitize or classify values in-process.
  */
-export type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS = never
 
-/**
- * Sanitizes tool names for analytics logging to avoid PII exposure.
- *
- * MCP tool names follow the format `mcp__<server>__<tool>` and can reveal
- * user-specific server configurations, which is considered PII-medium.
- * This function redacts MCP tool names while preserving built-in tool names
- * (Bash, Read, Write, etc.) which are safe to log.
- *
- * @param toolName - The tool name to sanitize
- * @returns The original name for built-in tools, or 'mcp_tool' for MCP tools
- */
+export type { AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS }
+
 export function sanitizeToolNameForAnalytics(
   toolName: string,
 ): AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS {
@@ -76,103 +17,17 @@ export function sanitizeToolNameForAnalytics(
   return toolName as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
 }
 
-/**
- * Check if detailed tool name logging is enabled for OTLP events.
- * When enabled, MCP server/tool names and Skill names are logged.
- * Disabled by default to protect PII (user-specific server configurations).
- *
- * Enable with OTEL_LOG_TOOL_DETAILS=1
- */
 export function isToolDetailsLoggingEnabled(): boolean {
-  return isEnvTruthy(process.env.OTEL_LOG_TOOL_DETAILS)
-}
-
-/**
- * Check if detailed tool name logging (MCP server/tool names) is enabled
- * for analytics events.
- *
- * Per go/taxonomy, MCP names are medium PII. We log them for:
- * - Cowork (entrypoint=local-agent) — no ZDR concept, log all MCPs
- * - claude.ai-proxied connectors — always official (from claude.ai's list)
- * - Servers whose URL matches the official MCP registry — directory
- *   connectors added via `claude mcp add`, not customer-specific config
- *
- * Custom/user-configured MCPs stay sanitized (toolName='mcp_tool').
- */
-export function isAnalyticsToolDetailsLoggingEnabled(
-  mcpServerType: string | undefined,
-  mcpServerBaseUrl: string | undefined,
-): boolean {
-  if (process.env.CLAUDE_CODE_ENTRYPOINT === 'local-agent') {
-    return true
-  }
-  if (mcpServerType === 'claudeai-proxy') {
-    return true
-  }
-  if (mcpServerBaseUrl && isOfficialMcpUrl(mcpServerBaseUrl)) {
-    return true
-  }
   return false
 }
 
-/**
- * Built-in first-party MCP servers whose names are fixed reserved strings,
- * not user-configured — so logging them is not PII. Checked in addition to
- * isAnalyticsToolDetailsLoggingEnabled's transport/URL gates, which a stdio
- * built-in would otherwise fail.
- *
- * Feature-gated so the set is empty when the feature is off: the name
- * reservation (main.tsx, config.ts addMcpServer) is itself feature-gated, so
- * a user-configured 'computer-use' is possible in builds without the feature.
- */
-/* eslint-disable @typescript-eslint/no-require-imports */
-const BUILTIN_MCP_SERVER_NAMES: ReadonlySet<string> = new Set(
-  feature('CHICAGO_MCP')
-    ? [
-        (
-          require('../../utils/computerUse/common.js') as typeof import('../../utils/computerUse/common.js')
-        ).COMPUTER_USE_MCP_SERVER_NAME,
-      ]
-    : [],
-)
-/* eslint-enable @typescript-eslint/no-require-imports */
-
-/**
- * Spreadable helper for logEvent payloads — returns {mcpServerName, mcpToolName}
- * if the gate passes, empty object otherwise. Consolidates the identical IIFE
- * pattern at each tengu_tool_use_* call site.
- */
-export function mcpToolDetailsForAnalytics(
-  toolName: string,
-  mcpServerType: string | undefined,
-  mcpServerBaseUrl: string | undefined,
-): {
+export function mcpToolDetailsForAnalytics(): {
   mcpServerName?: AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
   mcpToolName?: AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
 } {
-  const details = extractMcpToolDetails(toolName)
-  if (!details) {
-    return {}
-  }
-  if (
-    !BUILTIN_MCP_SERVER_NAMES.has(details.serverName) &&
-    !isAnalyticsToolDetailsLoggingEnabled(mcpServerType, mcpServerBaseUrl)
-  ) {
-    return {}
-  }
-  return {
-    mcpServerName: details.serverName,
-    mcpToolName: details.mcpToolName,
-  }
+  return {}
 }
 
-/**
- * Extract MCP server and tool names from a full MCP tool name.
- * MCP tool names follow the format: mcp__<server>__<tool>
- *
- * @param toolName - The full tool name (e.g., 'mcp__slack__read_channel')
- * @returns Object with serverName and toolName, or undefined if not an MCP tool
- */
 export function extractMcpToolDetails(toolName: string):
   | {
       serverName: AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
@@ -183,16 +38,13 @@ export function extractMcpToolDetails(toolName: string):
     return undefined
   }
 
-  // Format: mcp__<server>__<tool>
   const parts = toolName.split('__')
   if (parts.length < 3) {
     return undefined
   }
 
   const serverName = parts[1]
-  // Tool name may contain __ so rejoin remaining parts
   const mcpToolName = parts.slice(2).join('__')
-
   if (!serverName || !mcpToolName) {
     return undefined
   }
@@ -205,13 +57,6 @@ export function extractMcpToolDetails(toolName: string):
   }
 }
 
-/**
- * Extract skill name from Skill tool input.
- *
- * @param toolName - The tool name (should be 'Skill')
- * @param input - The tool input containing the skill name
- * @returns The skill name if this is a Skill tool call, undefined otherwise
- */
 export function extractSkillName(
   toolName: string,
   input: unknown,
@@ -233,93 +78,14 @@ export function extractSkillName(
   return undefined
 }
 
-const TOOL_INPUT_STRING_TRUNCATE_AT = 512
-const TOOL_INPUT_STRING_TRUNCATE_TO = 128
-const TOOL_INPUT_MAX_JSON_CHARS = 4 * 1024
-const TOOL_INPUT_MAX_COLLECTION_ITEMS = 20
-const TOOL_INPUT_MAX_DEPTH = 2
-
-function truncateToolInputValue(value: unknown, depth = 0): unknown {
-  if (typeof value === 'string') {
-    if (value.length > TOOL_INPUT_STRING_TRUNCATE_AT) {
-      return `${value.slice(0, TOOL_INPUT_STRING_TRUNCATE_TO)}…[${value.length} chars]`
-    }
-    return value
-  }
-  if (
-    typeof value === 'number' ||
-    typeof value === 'boolean' ||
-    value === null ||
-    value === undefined
-  ) {
-    return value
-  }
-  if (depth >= TOOL_INPUT_MAX_DEPTH) {
-    return '<nested>'
-  }
-  if (Array.isArray(value)) {
-    const mapped = value
-      .slice(0, TOOL_INPUT_MAX_COLLECTION_ITEMS)
-      .map(v => truncateToolInputValue(v, depth + 1))
-    if (value.length > TOOL_INPUT_MAX_COLLECTION_ITEMS) {
-      mapped.push(`…[${value.length} items]`)
-    }
-    return mapped
-  }
-  if (typeof value === 'object') {
-    const entries = Object.entries(value as Record<string, unknown>)
-      // Skip internal marker keys (e.g. _simulatedSedEdit re-introduced by
-      // SedEditPermissionRequest) so they don't leak into telemetry.
-      .filter(([k]) => !k.startsWith('_'))
-    const mapped = entries
-      .slice(0, TOOL_INPUT_MAX_COLLECTION_ITEMS)
-      .map(([k, v]) => [k, truncateToolInputValue(v, depth + 1)])
-    if (entries.length > TOOL_INPUT_MAX_COLLECTION_ITEMS) {
-      mapped.push(['…', `${entries.length} keys`])
-    }
-    return Object.fromEntries(mapped)
-  }
-  return String(value)
-}
-
-/**
- * Serialize a tool's input arguments for the OTel tool_result event.
- * Truncates long strings and deep nesting to keep the output bounded while
- * preserving forensically useful fields like file paths, URLs, and MCP args.
- * Returns undefined when OTEL_LOG_TOOL_DETAILS is not enabled.
- */
 export function extractToolInputForTelemetry(
-  input: unknown,
+  _input: unknown,
 ): string | undefined {
-  if (!isToolDetailsLoggingEnabled()) {
-    return undefined
-  }
-  const truncated = truncateToolInputValue(input)
-  let json = jsonStringify(truncated)
-  if (json.length > TOOL_INPUT_MAX_JSON_CHARS) {
-    json = json.slice(0, TOOL_INPUT_MAX_JSON_CHARS) + '…[truncated]'
-  }
-  return json
+  return undefined
 }
 
-/**
- * Maximum length for file extensions to be logged.
- * Extensions longer than this are considered potentially sensitive
- * (e.g., hash-based filenames like "key-hash-abcd-123-456") and
- * will be replaced with 'other'.
- */
 const MAX_FILE_EXTENSION_LENGTH = 10
 
-/**
- * Extracts and sanitizes a file extension for analytics logging.
- *
- * Uses Node's path.extname for reliable cross-platform extension extraction.
- * Returns 'other' for extensions exceeding MAX_FILE_EXTENSION_LENGTH to avoid
- * logging potentially sensitive data (like hash-based filenames).
- *
- * @param filePath - The file path to extract the extension from
- * @returns The sanitized extension, 'other' for long extensions, or undefined if no extension
- */
 export function getFileExtensionForAnalytics(
   filePath: string,
 ): AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS | undefined {
@@ -328,7 +94,7 @@ export function getFileExtensionForAnalytics(
     return undefined
   }
 
-  const extension = ext.slice(1) // remove leading dot
+  const extension = ext.slice(1)
   if (extension.length > MAX_FILE_EXTENSION_LENGTH) {
     return 'other' as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
   }
@@ -336,7 +102,6 @@ export function getFileExtensionForAnalytics(
   return extension as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
 }
 
-/** Allow list of commands we extract file extensions from. */
 const FILE_COMMANDS = new Set([
   'rm',
   'mv',
@@ -357,23 +122,16 @@ const FILE_COMMANDS = new Set([
   'sed',
 ])
 
-/** Regex to split bash commands on compound operators (&&, ||, ;, |). */
 const COMPOUND_OPERATOR_REGEX = /\s*(?:&&|\|\||[;|])\s*/
-
-/** Regex to split on whitespace. */
 const WHITESPACE_REGEX = /\s+/
 
-/**
- * Extracts file extensions from a bash command for analytics.
- * Best-effort: splits on operators and whitespace, extracts extensions
- * from non-flag args of allowed commands. No heavy shell parsing needed
- * because grep patterns and sed scripts rarely resemble file extensions.
- */
 export function getFileExtensionsFromBashCommand(
   command: string,
   simulatedSedEditFilePath?: string,
 ): AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS | undefined {
-  if (!command.includes('.') && !simulatedSedEditFilePath) return undefined
+  if (!command.includes('.') && !simulatedSedEditFilePath) {
+    return undefined
+  }
 
   let result: string | undefined
   const seen = new Set<string>()
@@ -398,7 +156,7 @@ export function getFileExtensionsFromBashCommand(
 
     for (let i = 1; i < tokens.length; i++) {
       const arg = tokens[i]!
-      if (arg.charCodeAt(0) === 45 /* - */) continue
+      if (arg.charCodeAt(0) === 45) continue
       const ext = getFileExtensionForAnalytics(arg)
       if (ext && !seen.has(ext)) {
         seen.add(ext)
@@ -407,567 +165,8 @@ export function getFileExtensionsFromBashCommand(
     }
   }
 
-  if (!result) return undefined
-  return result as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
-}
-
-/**
- * Environment context metadata
- */
-export type EnvContext = {
-  platform: string
-  platformRaw: string
-  arch: string
-  nodeVersion: string
-  terminal: string | null
-  packageManagers: string
-  runtimes: string
-  isRunningWithBun: boolean
-  isCi: boolean
-  isClaubbit: boolean
-  isClaudeCodeRemote: boolean
-  isLocalAgentMode: boolean
-  isConductor: boolean
-  remoteEnvironmentType?: string
-  coworkerType?: string
-  claudeCodeContainerId?: string
-  claudeCodeRemoteSessionId?: string
-  tags?: string
-  isGithubAction: boolean
-  isClaudeCodeAction: boolean
-  isClaudeAiAuth: boolean
-  version: string
-  versionBase?: string
-  buildTime: string
-  deploymentEnvironment: string
-  githubEventName?: string
-  githubActionsRunnerEnvironment?: string
-  githubActionsRunnerOs?: string
-  githubActionRef?: string
-  wslVersion?: string
-  linuxDistroId?: string
-  linuxDistroVersion?: string
-  linuxKernel?: string
-  vcs?: string
-}
-
-/**
- * Process metrics included with all analytics events.
- */
-export type ProcessMetrics = {
-  uptime: number
-  rss: number
-  heapTotal: number
-  heapUsed: number
-  external: number
-  arrayBuffers: number
-  constrainedMemory: number | undefined
-  cpuUsage: NodeJS.CpuUsage
-  cpuPercent: number | undefined
-}
-
-/**
- * Core event metadata shared across all analytics systems
- */
-export type EventMetadata = {
-  model: string
-  sessionId: string
-  userType: string
-  betas?: string
-  envContext: EnvContext
-  entrypoint?: string
-  agentSdkVersion?: string
-  isInteractive: string
-  clientType: string
-  processMetrics?: ProcessMetrics
-  sweBenchRunId: string
-  sweBenchInstanceId: string
-  sweBenchTaskId: string
-  // Swarm/team agent identification for analytics attribution
-  agentId?: string // CLAUDE_CODE_AGENT_ID (format: agentName@teamName) or subagent UUID
-  parentSessionId?: string // CLAUDE_CODE_PARENT_SESSION_ID (team lead's session)
-  agentType?: 'teammate' | 'subagent' | 'standalone' // Distinguishes swarm teammates, Agent tool subagents, and standalone agents
-  teamName?: string // Team name for swarm agents (from env var or AsyncLocalStorage)
-  subscriptionType?: string // OAuth subscription tier (max, pro, enterprise, team)
-  rh?: string // Hashed repo remote URL (first 16 chars of SHA256), for joining with server-side data
-  kairosActive?: true // KAIROS assistant mode active (ant-only; set in main.tsx after gate check)
-  skillMode?: 'discovery' | 'coach' | 'discovery_and_coach' // Which skill surfacing mechanism(s) are gated on (ant-only; for BQ session segmentation)
-  observerMode?: 'backseat' | 'skillcoach' | 'both' // Which observer classifiers are gated on (ant-only; for BQ cohort splits on tengu_backseat_* events)
-}
-
-/**
- * Options for enriching event metadata
- */
-export type EnrichMetadataOptions = {
-  // Model to use, falls back to getMainLoopModel() if not provided
-  model?: unknown
-  // Explicit betas string (already joined)
-  betas?: unknown
-  // Additional metadata to include (optional)
-  additionalMetadata?: Record<string, unknown>
-}
-
-/**
- * Get agent identification for analytics.
- * Priority: AsyncLocalStorage context (subagents) > env vars (swarm teammates)
- */
-function getAgentIdentification(): {
-  agentId?: string
-  parentSessionId?: string
-  agentType?: 'teammate' | 'subagent' | 'standalone'
-  teamName?: string
-} {
-  // Check AsyncLocalStorage first (for subagents running in same process)
-  const agentContext = getAgentContext()
-  if (agentContext) {
-    const result: ReturnType<typeof getAgentIdentification> = {
-      agentId: agentContext.agentId,
-      parentSessionId: agentContext.parentSessionId,
-      agentType: agentContext.agentType,
-    }
-    if (agentContext.agentType === 'teammate') {
-      result.teamName = agentContext.teamName
-    }
-    return result
-  }
-
-  // Fall back to swarm helpers (for swarm agents)
-  const agentId = getAgentId()
-  const parentSessionId = getTeammateParentSessionId()
-  const teamName = getTeamName()
-  const isSwarmAgent = isTeammate()
-  // For standalone agents (have agent ID but not a teammate), set agentType to 'standalone'
-  const agentType = isSwarmAgent
-    ? ('teammate' as const)
-    : agentId
-      ? ('standalone' as const)
-      : undefined
-  if (agentId || agentType || parentSessionId || teamName) {
-    return {
-      ...(agentId ? { agentId } : {}),
-      ...(agentType ? { agentType } : {}),
-      ...(parentSessionId ? { parentSessionId } : {}),
-      ...(teamName ? { teamName } : {}),
-    }
-  }
-
-  // Check bootstrap state for parent session ID (e.g., plan mode -> implementation)
-  const stateParentSessionId = getParentSessionIdFromState()
-  if (stateParentSessionId) {
-    return { parentSessionId: stateParentSessionId }
-  }
-
-  return {}
-}
-
-/**
- * Extract base version from full version string. "2.0.36-dev.20251107.t174150.sha2709699" → "2.0.36-dev"
- */
-const getVersionBase = memoize((): string | undefined => {
-  const match = MACRO.VERSION.match(/^\d+\.\d+\.\d+(?:-[a-z]+)?/)
-  return match ? match[0] : undefined
-})
-
-/**
- * Builds the environment context object
- */
-const buildEnvContext = memoize(async (): Promise<EnvContext> => {
-  const [packageManagers, runtimes, linuxDistroInfo, vcs] = await Promise.all([
-    env.getPackageManagers(),
-    env.getRuntimes(),
-    getLinuxDistroInfo(),
-    detectVcs(),
-  ])
-
-  return {
-    platform: getHostPlatformForAnalytics(),
-    // Raw process.platform so freebsd/openbsd/aix/sunos are visible in BQ.
-    // getHostPlatformForAnalytics() buckets those into 'linux'; here we want
-    // the truth. CLAUDE_CODE_HOST_PLATFORM still overrides for container/remote.
-    platformRaw: process.env.CLAUDE_CODE_HOST_PLATFORM || process.platform,
-    arch: env.arch,
-    nodeVersion: env.nodeVersion,
-    terminal: envDynamic.terminal,
-    packageManagers: packageManagers.join(','),
-    runtimes: runtimes.join(','),
-    isRunningWithBun: env.isRunningWithBun(),
-    isCi: isEnvTruthy(process.env.CI),
-    isClaubbit: isEnvTruthy(process.env.CLAUBBIT),
-    isClaudeCodeRemote: isEnvTruthy(process.env.CLAUDE_CODE_REMOTE),
-    isLocalAgentMode: process.env.CLAUDE_CODE_ENTRYPOINT === 'local-agent',
-    isConductor: env.isConductor(),
-    ...(process.env.CLAUDE_CODE_REMOTE_ENVIRONMENT_TYPE && {
-      remoteEnvironmentType: process.env.CLAUDE_CODE_REMOTE_ENVIRONMENT_TYPE,
-    }),
-    // Gated by feature flag to prevent leaking "coworkerType" string in external builds
-    ...(feature('COWORKER_TYPE_TELEMETRY')
-      ? process.env.CLAUDE_CODE_COWORKER_TYPE
-        ? { coworkerType: process.env.CLAUDE_CODE_COWORKER_TYPE }
-        : {}
-      : {}),
-    ...(process.env.CLAUDE_CODE_CONTAINER_ID && {
-      claudeCodeContainerId: process.env.CLAUDE_CODE_CONTAINER_ID,
-    }),
-    ...(process.env.CLAUDE_CODE_REMOTE_SESSION_ID && {
-      claudeCodeRemoteSessionId: process.env.CLAUDE_CODE_REMOTE_SESSION_ID,
-    }),
-    ...(process.env.CLAUDE_CODE_TAGS && {
-      tags: process.env.CLAUDE_CODE_TAGS,
-    }),
-    isGithubAction: isEnvTruthy(process.env.GITHUB_ACTIONS),
-    isClaudeCodeAction: isEnvTruthy(process.env.CLAUDE_CODE_ACTION),
-    isClaudeAiAuth: isClaudeAISubscriber(),
-    version: MACRO.VERSION,
-    versionBase: getVersionBase(),
-    buildTime: MACRO.BUILD_TIME,
-    deploymentEnvironment: env.detectDeploymentEnvironment(),
-    ...(isEnvTruthy(process.env.GITHUB_ACTIONS) && {
-      githubEventName: process.env.GITHUB_EVENT_NAME,
-      githubActionsRunnerEnvironment: process.env.RUNNER_ENVIRONMENT,
-      githubActionsRunnerOs: process.env.RUNNER_OS,
-      githubActionRef: process.env.GITHUB_ACTION_PATH?.includes(
-        'claude-code-action/',
-      )
-        ? process.env.GITHUB_ACTION_PATH.split('claude-code-action/')[1]
-        : undefined,
-    }),
-    ...(getWslVersion() && { wslVersion: getWslVersion() }),
-    ...(linuxDistroInfo ?? {}),
-    ...(vcs.length > 0 ? { vcs: vcs.join(',') } : {}),
-  }
-})
-
-// --
-// CPU% delta tracking — inherently process-global, same pattern as logBatch/flushTimer in datadog.ts
-let prevCpuUsage: NodeJS.CpuUsage | null = null
-let prevWallTimeMs: number | null = null
-
-/**
- * Builds process metrics object for all users.
- */
-function buildProcessMetrics(): ProcessMetrics | undefined {
-  try {
-    const mem = process.memoryUsage()
-    const cpu = process.cpuUsage()
-    const now = Date.now()
-
-    let cpuPercent: number | undefined
-    if (prevCpuUsage && prevWallTimeMs) {
-      const wallDeltaMs = now - prevWallTimeMs
-      if (wallDeltaMs > 0) {
-        const userDeltaUs = cpu.user - prevCpuUsage.user
-        const systemDeltaUs = cpu.system - prevCpuUsage.system
-        cpuPercent =
-          ((userDeltaUs + systemDeltaUs) / (wallDeltaMs * 1000)) * 100
-      }
-    }
-    prevCpuUsage = cpu
-    prevWallTimeMs = now
-
-    return {
-      uptime: process.uptime(),
-      rss: mem.rss,
-      heapTotal: mem.heapTotal,
-      heapUsed: mem.heapUsed,
-      external: mem.external,
-      arrayBuffers: mem.arrayBuffers,
-      // eslint-disable-next-line eslint-plugin-n/no-unsupported-features/node-builtins
-      constrainedMemory: process.constrainedMemory(),
-      cpuUsage: cpu,
-      cpuPercent,
-    }
-  } catch {
+  if (!result) {
     return undefined
   }
-}
-
-/**
- * Get core event metadata shared across all analytics systems.
- *
- * This function collects environment, runtime, and context information
- * that should be included with all analytics events.
- *
- * @param options - Configuration options
- * @returns Promise resolving to enriched metadata object
- */
-export async function getEventMetadata(
-  options: EnrichMetadataOptions = {},
-): Promise<EventMetadata> {
-  const model = options.model ? String(options.model) : getMainLoopModel()
-  const betas =
-    typeof options.betas === 'string'
-      ? options.betas
-      : getModelBetas(model).join(',')
-  const [envContext, repoRemoteHash] = await Promise.all([
-    buildEnvContext(),
-    getRepoRemoteHash(),
-  ])
-  const processMetrics = buildProcessMetrics()
-
-  const metadata: EventMetadata = {
-    model,
-    sessionId: getSessionId(),
-    userType: process.env.USER_TYPE || '',
-    ...(betas.length > 0 ? { betas: betas } : {}),
-    envContext,
-    ...(process.env.CLAUDE_CODE_ENTRYPOINT && {
-      entrypoint: process.env.CLAUDE_CODE_ENTRYPOINT,
-    }),
-    ...(process.env.CLAUDE_AGENT_SDK_VERSION && {
-      agentSdkVersion: process.env.CLAUDE_AGENT_SDK_VERSION,
-    }),
-    isInteractive: String(getIsInteractive()),
-    clientType: getClientType(),
-    ...(processMetrics && { processMetrics }),
-    sweBenchRunId: process.env.SWE_BENCH_RUN_ID || '',
-    sweBenchInstanceId: process.env.SWE_BENCH_INSTANCE_ID || '',
-    sweBenchTaskId: process.env.SWE_BENCH_TASK_ID || '',
-    // Swarm/team agent identification
-    // Priority: AsyncLocalStorage context (subagents) > env vars (swarm teammates)
-    ...getAgentIdentification(),
-    // Subscription tier for DAU-by-tier analytics
-    ...(getSubscriptionType() && {
-      subscriptionType: getSubscriptionType()!,
-    }),
-    // Assistant mode tag — lives outside memoized buildEnvContext() because
-    // setKairosActive() runs at main.tsx:~1648, after the first event may
-    // have already fired and memoized the env. Read fresh per-event instead.
-    ...(feature('KAIROS') && getKairosActive()
-      ? { kairosActive: true as const }
-      : {}),
-    // Repo remote hash for joining with server-side repo bundle data
-    ...(repoRemoteHash && { rh: repoRemoteHash }),
-  }
-
-  return metadata
-}
-
-
-/**
- * Core event metadata for 1P event logging (snake_case format).
- */
-export type FirstPartyEventLoggingCoreMetadata = {
-  session_id: string
-  model: string
-  user_type: string
-  betas?: string
-  entrypoint?: string
-  agent_sdk_version?: string
-  is_interactive: boolean
-  client_type: string
-  swe_bench_run_id?: string
-  swe_bench_instance_id?: string
-  swe_bench_task_id?: string
-  // Swarm/team agent identification
-  agent_id?: string
-  parent_session_id?: string
-  agent_type?: 'teammate' | 'subagent' | 'standalone'
-  team_name?: string
-}
-
-/**
- * Complete event logging metadata format for 1P events.
- */
-export type FirstPartyEventLoggingMetadata = {
-  env: EnvironmentMetadata
-  process?: string
-  // auth is a top-level field on ClaudeCodeInternalEvent (proto PublicApiAuth).
-  // account_id is intentionally omitted — only UUID fields are populated client-side.
-  auth?: PublicApiAuth
-  // core fields correspond to the top level of ClaudeCodeInternalEvent.
-  // They get directly exported to their individual columns in the BigQuery tables
-  core: FirstPartyEventLoggingCoreMetadata
-  // additional fields are populated in the additional_metadata field of the
-  // ClaudeCodeInternalEvent proto. Includes but is not limited to information
-  // that differs by event type.
-  additional: Record<string, unknown>
-}
-
-/**
- * Convert metadata to 1P event logging format (snake_case fields).
- *
- * The /api/event_logging/batch endpoint expects snake_case field names
- * for environment and core metadata.
- *
- * @param metadata - Core event metadata
- * @param additionalMetadata - Additional metadata to include
- * @returns Metadata formatted for 1P event logging
- */
-export function to1PEventFormat(
-  metadata: EventMetadata,
-  userMetadata: CoreUserData,
-  additionalMetadata: Record<string, unknown> = {},
-): FirstPartyEventLoggingMetadata {
-  const {
-    envContext,
-    processMetrics,
-    rh,
-    kairosActive,
-    skillMode,
-    observerMode,
-    ...coreFields
-  } = metadata
-
-  // Convert envContext to snake_case.
-  // IMPORTANT: env is typed as the proto-generated EnvironmentMetadata so that
-  // adding a field here that the proto doesn't define is a compile error. The
-  // generated toJSON() serializer silently drops unknown keys — a hand-written
-  // parallel type previously let #11318, #13924, #19448, and coworker_type all
-  // ship fields that never reached BQ.
-  // Adding a field? Update the monorepo proto first (go/cc-logging):
-  //   event_schemas/.../claude_code/v1/claude_code_internal_event.proto
-  // then run `bun run generate:proto` here.
-  const env: EnvironmentMetadata = {
-    platform: envContext.platform,
-    platform_raw: envContext.platformRaw,
-    arch: envContext.arch,
-    node_version: envContext.nodeVersion,
-    terminal: envContext.terminal || 'unknown',
-    package_managers: envContext.packageManagers,
-    runtimes: envContext.runtimes,
-    is_running_with_bun: envContext.isRunningWithBun,
-    is_ci: envContext.isCi,
-    is_claubbit: envContext.isClaubbit,
-    is_claude_code_remote: envContext.isClaudeCodeRemote,
-    is_local_agent_mode: envContext.isLocalAgentMode,
-    is_conductor: envContext.isConductor,
-    is_github_action: envContext.isGithubAction,
-    is_claude_code_action: envContext.isClaudeCodeAction,
-    is_claude_ai_auth: envContext.isClaudeAiAuth,
-    version: envContext.version,
-    build_time: envContext.buildTime,
-    deployment_environment: envContext.deploymentEnvironment,
-  }
-
-  // Add optional env fields
-  if (envContext.remoteEnvironmentType) {
-    env.remote_environment_type = envContext.remoteEnvironmentType
-  }
-  if (feature('COWORKER_TYPE_TELEMETRY') && envContext.coworkerType) {
-    env.coworker_type = envContext.coworkerType
-  }
-  if (envContext.claudeCodeContainerId) {
-    env.claude_code_container_id = envContext.claudeCodeContainerId
-  }
-  if (envContext.claudeCodeRemoteSessionId) {
-    env.claude_code_remote_session_id = envContext.claudeCodeRemoteSessionId
-  }
-  if (envContext.tags) {
-    env.tags = envContext.tags
-      .split(',')
-      .map(t => t.trim())
-      .filter(Boolean)
-  }
-  if (envContext.githubEventName) {
-    env.github_event_name = envContext.githubEventName
-  }
-  if (envContext.githubActionsRunnerEnvironment) {
-    env.github_actions_runner_environment =
-      envContext.githubActionsRunnerEnvironment
-  }
-  if (envContext.githubActionsRunnerOs) {
-    env.github_actions_runner_os = envContext.githubActionsRunnerOs
-  }
-  if (envContext.githubActionRef) {
-    env.github_action_ref = envContext.githubActionRef
-  }
-  if (envContext.wslVersion) {
-    env.wsl_version = envContext.wslVersion
-  }
-  if (envContext.linuxDistroId) {
-    env.linux_distro_id = envContext.linuxDistroId
-  }
-  if (envContext.linuxDistroVersion) {
-    env.linux_distro_version = envContext.linuxDistroVersion
-  }
-  if (envContext.linuxKernel) {
-    env.linux_kernel = envContext.linuxKernel
-  }
-  if (envContext.vcs) {
-    env.vcs = envContext.vcs
-  }
-  if (envContext.versionBase) {
-    env.version_base = envContext.versionBase
-  }
-
-  // Convert core fields to snake_case
-  const core: FirstPartyEventLoggingCoreMetadata = {
-    session_id: coreFields.sessionId,
-    model: coreFields.model,
-    user_type: coreFields.userType,
-    is_interactive: coreFields.isInteractive === 'true',
-    client_type: coreFields.clientType,
-  }
-
-  // Add other core fields
-  if (coreFields.betas) {
-    core.betas = coreFields.betas
-  }
-  if (coreFields.entrypoint) {
-    core.entrypoint = coreFields.entrypoint
-  }
-  if (coreFields.agentSdkVersion) {
-    core.agent_sdk_version = coreFields.agentSdkVersion
-  }
-  if (coreFields.sweBenchRunId) {
-    core.swe_bench_run_id = coreFields.sweBenchRunId
-  }
-  if (coreFields.sweBenchInstanceId) {
-    core.swe_bench_instance_id = coreFields.sweBenchInstanceId
-  }
-  if (coreFields.sweBenchTaskId) {
-    core.swe_bench_task_id = coreFields.sweBenchTaskId
-  }
-  // Swarm/team agent identification
-  if (coreFields.agentId) {
-    core.agent_id = coreFields.agentId
-  }
-  if (coreFields.parentSessionId) {
-    core.parent_session_id = coreFields.parentSessionId
-  }
-  if (coreFields.agentType) {
-    core.agent_type = coreFields.agentType
-  }
-  if (coreFields.teamName) {
-    core.team_name = coreFields.teamName
-  }
-
-  // Map userMetadata to output fields.
-  // Based on src/utils/user.ts getUser(), but with fields present in other
-  // parts of ClaudeCodeInternalEvent deduplicated.
-  // Convert camelCase GitHubActionsMetadata to snake_case for 1P API
-  // Note: github_actions_metadata is placed inside env (EnvironmentMetadata)
-  // rather than at the top level of ClaudeCodeInternalEvent
-  if (userMetadata.githubActionsMetadata) {
-    const ghMeta = userMetadata.githubActionsMetadata
-    env.github_actions_metadata = {
-      actor_id: ghMeta.actorId,
-      repository_id: ghMeta.repositoryId,
-      repository_owner_id: ghMeta.repositoryOwnerId,
-    }
-  }
-
-  let auth: PublicApiAuth | undefined
-  if (userMetadata.accountUuid || userMetadata.organizationUuid) {
-    auth = {
-      account_uuid: userMetadata.accountUuid,
-      organization_uuid: userMetadata.organizationUuid,
-    }
-  }
-
-  return {
-    env,
-    ...(processMetrics && {
-      process: Buffer.from(jsonStringify(processMetrics)).toString('base64'),
-    }),
-    ...(auth && { auth }),
-    core,
-    additional: {
-      ...(rh && { rh }),
-      ...(kairosActive && { is_assistant_mode: true }),
-      ...(skillMode && { skill_mode: skillMode }),
-      ...(observerMode && { observer_mode: observerMode }),
-      ...additionalMetadata,
-    },
-  }
+  return result as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
 }

src/services/analytics/sink.ts

@@ -1,114 +0,0 @@
-/**
- * Analytics sink implementation
- *
- * This module contains the actual analytics routing logic and should be
- * initialized during app startup. It routes events to Datadog and 1P event
- * logging.
- *
- * Usage: Call initializeAnalyticsSink() during app startup to attach the sink.
- */
-
-import { trackDatadogEvent } from './datadog.js'
-import { logEventTo1P, shouldSampleEvent } from './firstPartyEventLogger.js'
-import { checkStatsigFeatureGate_CACHED_MAY_BE_STALE } from './growthbook.js'
-import { attachAnalyticsSink, stripProtoFields } from './index.js'
-import { isSinkKilled } from './sinkKillswitch.js'
-
-// Local type matching the logEvent metadata signature
-type LogEventMetadata = { [key: string]: boolean | number | undefined }
-
-const DATADOG_GATE_NAME = 'tengu_log_datadog_events'
-
-// Module-level gate state - starts undefined, initialized during startup
-let isDatadogGateEnabled: boolean | undefined = undefined
-
-/**
- * Check if Datadog tracking is enabled.
- * Falls back to cached value from previous session if not yet initialized.
- */
-function shouldTrackDatadog(): boolean {
-  if (isSinkKilled('datadog')) {
-    return false
-  }
-  if (isDatadogGateEnabled !== undefined) {
-    return isDatadogGateEnabled
-  }
-
-  // Fallback to cached value from previous session
-  try {
-    return checkStatsigFeatureGate_CACHED_MAY_BE_STALE(DATADOG_GATE_NAME)
-  } catch {
-    return false
-  }
-}
-
-/**
- * Log an event (synchronous implementation)
- */
-function logEventImpl(eventName: string, metadata: LogEventMetadata): void {
-  // Check if this event should be sampled
-  const sampleResult = shouldSampleEvent(eventName)
-
-  // If sample result is 0, the event was not selected for logging
-  if (sampleResult === 0) {
-    return
-  }
-
-  // If sample result is a positive number, add it to metadata
-  const metadataWithSampleRate =
-    sampleResult !== null
-      ? { ...metadata, sample_rate: sampleResult }
-      : metadata
-
-  if (shouldTrackDatadog()) {
-    // Datadog is a general-access backend — strip _PROTO_* keys
-    // (unredacted PII-tagged values meant only for the 1P privileged column).
-    void trackDatadogEvent(eventName, stripProtoFields(metadataWithSampleRate))
-  }
-
-  // 1P receives the full payload including _PROTO_* — the exporter
-  // destructures and routes those keys to proto fields itself.
-  logEventTo1P(eventName, metadataWithSampleRate)
-}
-
-/**
- * Log an event (asynchronous implementation)
- *
- * With Segment removed the two remaining sinks are fire-and-forget, so this
- * just wraps the sync impl — kept to preserve the sink interface contract.
- */
-function logEventAsyncImpl(
-  eventName: string,
-  metadata: LogEventMetadata,
-): Promise<void> {
-  logEventImpl(eventName, metadata)
-  return Promise.resolve()
-}
-
-/**
- * Initialize analytics gates during startup.
- *
- * Updates gate values from server. Early events use cached values from previous
- * session to avoid data loss during initialization.
- *
- * Called from main.tsx during setupBackend().
- */
-export function initializeAnalyticsGates(): void {
-  isDatadogGateEnabled =
-    checkStatsigFeatureGate_CACHED_MAY_BE_STALE(DATADOG_GATE_NAME)
-}
-
-/**
- * Initialize the analytics sink.
- *
- * Call this during app startup to attach the analytics backend.
- * Any events logged before this is called will be queued and drained.
- *
- * Idempotent: safe to call multiple times (subsequent calls are no-ops).
- */
-export function initializeAnalyticsSink(): void {
-  attachAnalyticsSink({
-    logEvent: logEventImpl,
-    logEventAsync: logEventAsyncImpl,
-  })
-}

src/services/analytics/sinkKillswitch.ts

@@ -1,25 +0,0 @@
-import { getDynamicConfig_CACHED_MAY_BE_STALE } from './growthbook.js'
-
-// Mangled name: per-sink analytics killswitch
-const SINK_KILLSWITCH_CONFIG_NAME = 'tengu_frond_boric'
-
-export type SinkName = 'datadog' | 'firstParty'
-
-/**
- * GrowthBook JSON config that disables individual analytics sinks.
- * Shape: { datadog?: boolean, firstParty?: boolean }
- * A value of true for a key stops all dispatch to that sink.
- * Default {} (nothing killed). Fail-open: missing/malformed config = sink stays on.
- *
- * NOTE: Must NOT be called from inside is1PEventLoggingEnabled() -
- * growthbook.ts:isGrowthBookEnabled() calls that, so a lookup here would recurse.
- * Call at per-event dispatch sites instead.
- */
-export function isSinkKilled(sink: SinkName): boolean {
-  const config = getDynamicConfig_CACHED_MAY_BE_STALE<
-    Partial<Record<SinkName, boolean>>
-  >(SINK_KILLSWITCH_CONFIG_NAME, {})
-  // getFeatureValue_CACHED_MAY_BE_STALE guards on `!== undefined`, so a
-  // cached JSON null leaks through instead of falling back to {}.
-  return config?.[sink] === true
-}

src/services/api/claude.ts

@@ -209,11 +209,6 @@ import {
   stopSessionActivity,
 } from '../../utils/sessionActivity.js'
 import { jsonStringify } from '../../utils/slowOperations.js'
-import {
-  isBetaTracingEnabled,
-  type LLMRequestNewContext,
-  startLLMRequestSpan,
-} from '../../utils/telemetry/sessionTracing.js'
 /* eslint-enable @typescript-eslint/no-require-imports */
 import {
   type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
@@ -1379,9 +1374,6 @@ async function* queryModel(
   })
   const useBetas = betas.length > 0
 
-  // Build minimal context for detailed tracing (when beta tracing is enabled)
-  // Note: The actual new_context message extraction is done in sessionTracing.ts using
-  // hash-based tracking per querySource (agent) from the messagesForAPI array
   const extraToolSchemas = [...(options.extraToolSchemas ?? [])]
   if (advisorModel) {
     // Server tools must be in the tools array by API contract. Appended after
@@ -1485,23 +1477,6 @@ async function* queryModel(
     })
   }
 
-  const newContext: LLMRequestNewContext | undefined = isBetaTracingEnabled()
-    ? {
-        systemPrompt: systemPrompt.join('\n\n'),
-        querySource: options.querySource,
-        tools: jsonStringify(allTools),
-      }
-    : undefined
-
-  // Capture the span so we can pass it to endLLMRequestSpan later
-  // This ensures responses are matched to the correct request when multiple requests run in parallel
-  const llmSpan = startLLMRequestSpan(
-    options.model,
-    newContext,
-    messagesForAPI,
-    isFastMode,
-  )
-
   const startIncludingRetries = Date.now()
   let start = Date.now()
   let attemptNumber = 0
@@ -2730,7 +2705,6 @@ async function* queryModel(
           didFallBackToNonStreaming,
           queryTracking: options.queryTracking,
           querySource: options.querySource,
-          llmSpan,
           fastMode: isFastModeRequest,
           previousRequestId,
         })
@@ -2786,7 +2760,6 @@ async function* queryModel(
         didFallBackToNonStreaming,
         queryTracking: options.queryTracking,
         querySource: options.querySource,
-        llmSpan,
         fastMode: isFastModeRequest,
         previousRequestId,
       })
@@ -2874,10 +2847,7 @@ async function* queryModel(
       costUSD,
       queryTracking: options.queryTracking,
       permissionMode: permissionContext.mode,
-      // Pass newMessages for beta tracing - extraction happens in logging.ts
-      // only when beta tracing is enabled
       newMessages,
-      llmSpan,
       globalCacheStrategy,
       requestSetupMs: start - startIncludingRetries,
       attemptStartTimes,

src/services/api/codex-fetch-adapter.ts

@@ -736,77 +736,27 @@ async function translateCodexStreamToAnthropic(
 
 // ── Main fetch interceptor ──────────────────────────────────────────
 
-const CODEX_BASE_URL = 'https://chatgpt.com/backend-api/codex/responses'
-
 /**
- * Creates a fetch function that intercepts Anthropic API calls and routes them to Codex.
- * @param accessToken - The Codex access token for authentication
- * @returns A fetch function that translates Anthropic requests to Codex format
+ * createCodexFetch is disabled: routing conversations to chatgpt.com would
+ * send full user conversation content to OpenAI's backend, which is a
+ * privacy violation. The function is kept as a stub that always returns an
+ * error so existing call sites don't break at compile time.
  */
 export function createCodexFetch(
-  accessToken: string,
+  _accessToken: string,
 ): (input: RequestInfo | URL, init?: RequestInit) => Promise<Response> {
-  const accountId = extractAccountId(accessToken)
-
-  return async (input: RequestInfo | URL, init?: RequestInit): Promise<Response> => {
-    const url = input instanceof Request ? input.url : String(input)
-
-    // Only intercept Anthropic API message calls
-    if (!url.includes('/v1/messages')) {
-      return globalThis.fetch(input, init)
-    }
-
-    // Parse the Anthropic request body
-    let anthropicBody: Record<string, unknown>
-    try {
-      const bodyText =
-        init?.body instanceof ReadableStream
-          ? await new Response(init.body).text()
-          : typeof init?.body === 'string'
-            ? init.body
-            : '{}'
-      anthropicBody = JSON.parse(bodyText)
-    } catch {
-      anthropicBody = {}
-    }
-
-    // Get current token (may have been refreshed)
-    const tokens = getCodexOAuthTokens()
-    const currentToken = tokens?.accessToken || accessToken
-
-    // Translate to Codex format
-    const { codexBody, codexModel } = translateToCodexBody(anthropicBody)
-
-    // Call Codex API
-    const codexResponse = await globalThis.fetch(CODEX_BASE_URL, {
-      method: 'POST',
-      headers: {
-        'Content-Type': 'application/json',
-        Accept: 'text/event-stream',
-        Authorization: `Bearer ${currentToken}`,
-        'chatgpt-account-id': accountId,
-        originator: 'pi',
-        'OpenAI-Beta': 'responses=experimental',
+  return async (_input: RequestInfo | URL, _init?: RequestInit): Promise<Response> => {
+    const errorBody = {
+      type: 'error',
+      error: {
+        type: 'api_error',
+        message:
+          'Codex API routing is disabled. External Codex forwarding has been removed for privacy reasons.',
       },
-      body: JSON.stringify(codexBody),
-    })
-
-    if (!codexResponse.ok) {
-      const errorText = await codexResponse.text()
-      const errorBody = {
-        type: 'error',
-        error: {
-          type: 'api_error',
-          message: `Codex API error (${codexResponse.status}): ${errorText}`,
-        },
-      }
-      return new Response(JSON.stringify(errorBody), {
-        status: codexResponse.status,
-        headers: { 'Content-Type': 'application/json' },
-      })
     }
-
-    // Translate streaming response
-    return translateCodexStreamToAnthropic(codexResponse, codexModel)
+    return new Response(JSON.stringify(errorBody), {
+      status: 403,
+      headers: { 'Content-Type': 'application/json' },
+    })
   }
 }

src/services/api/filesApi.ts

@@ -14,9 +14,10 @@ import * as path from 'path'
 import { count } from '../../utils/array.js'
 import { getCwd } from '../../utils/cwd.js'
 import { logForDebugging } from '../../utils/debug.js'
-import { errorMessage } from '../../utils/errors.js'
+import { errorMessage, getErrnoCode } from '../../utils/errors.js'
 import { logError } from '../../utils/log.js'
 import { sleep } from '../../utils/sleep.js'
+import { jsonStringify } from '../../utils/slowOperations.js'
 import {
   type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
   logEvent,
@@ -45,6 +46,37 @@ function logDebug(message: string): void {
   logForDebugging(`[files-api] ${message}`)
 }
 
+function summarizeFilesApiError(error: unknown): string {
+  const summary: Record<string, boolean | number | string> = {}
+
+  if (error instanceof Error) {
+    summary.errorType = error.constructor.name
+    summary.errorName = error.name
+    summary.hasMessage = error.message.length > 0
+  } else {
+    summary.errorType = typeof error
+    summary.hasValue = error !== undefined && error !== null
+  }
+
+  const errno = getErrnoCode(error)
+  if (errno) {
+    summary.errno = errno
+  }
+
+  if (axios.isAxiosError(error)) {
+    summary.errorType = 'AxiosError'
+    if (error.code) {
+      summary.axiosCode = error.code
+    }
+    if (typeof error.response?.status === 'number') {
+      summary.httpStatus = error.response.status
+    }
+    summary.hasResponseData = error.response?.data !== undefined
+  }
+
+  return jsonStringify(summary)
+}
+
 /**
  * File specification parsed from CLI args
  * Format: --file=<file_id>:<relative_path>
@@ -108,9 +140,7 @@ async function retryWithBackoff<T>(
     }
 
     lastError = result.error || `${operation} failed`
-    logDebug(
-      `${operation} attempt ${attempt}/${MAX_RETRIES} failed: ${lastError}`,
-    )
+    logDebug(`${operation} attempt ${attempt}/${MAX_RETRIES} failed`)
 
     if (attempt < MAX_RETRIES) {
       const delayMs = BASE_DELAY_MS * Math.pow(2, attempt - 1)
@@ -142,7 +172,7 @@ export async function downloadFile(
     'anthropic-beta': FILES_API_BETA_HEADER,
   }
 
-  logDebug(`Downloading file ${fileId} from ${url}`)
+  logDebug(`Downloading file ${fileId} from configured Files API endpoint`)
 
   return retryWithBackoff(`Download file ${fileId}`, async () => {
     try {
@@ -191,9 +221,7 @@ export function buildDownloadPath(
 ): string | null {
   const normalized = path.normalize(relativePath)
   if (normalized.startsWith('..')) {
-    logDebugError(
-      `Invalid file path: ${relativePath}. Path must not traverse above workspace`,
-    )
+    logDebugError('Invalid file path rejected: path traversal is not allowed')
     return null
   }
 
@@ -243,7 +271,7 @@ export async function downloadAndSaveFile(
     // Write the file
     await fs.writeFile(fullPath, content)
 
-    logDebug(`Saved file ${fileId} to ${fullPath} (${content.length} bytes)`)
+    logDebug(`Saved file ${fileId} (${content.length} bytes)`)
 
     return {
       fileId,
@@ -252,10 +280,16 @@ export async function downloadAndSaveFile(
       bytesWritten: content.length,
     }
   } catch (error) {
-    logDebugError(`Failed to download file ${fileId}: ${errorMessage(error)}`)
-    if (error instanceof Error) {
-      logError(error)
-    }
+    logDebugError(
+      `Failed to download file ${fileId}: ${summarizeFilesApiError(error)}`,
+    )
+    logError(
+      new Error(
+        `Files API download failed for ${fileId}: ${summarizeFilesApiError(
+          error,
+        )}`,
+      ),
+    )
 
     return {
       fileId,
@@ -390,7 +424,7 @@ export async function uploadFile(
     'anthropic-beta': FILES_API_BETA_HEADER,
   }
 
-  logDebug(`Uploading file ${filePath} as ${relativePath}`)
+  logDebug('Uploading file to configured Files API endpoint')
 
   // Read file content first (outside retry loop since it's not a network operation)
   let content: Buffer
@@ -455,7 +489,7 @@ export async function uploadFile(
   const body = Buffer.concat(bodyParts)
 
   try {
-    return await retryWithBackoff(`Upload file ${relativePath}`, async () => {
+    return await retryWithBackoff('Upload session file', async () => {
       try {
         const response = await axios.post(url, body, {
           headers: {
@@ -476,7 +510,7 @@ export async function uploadFile(
               error: 'Upload succeeded but no file ID returned',
             }
           }
-          logDebug(`Uploaded file ${filePath} -> ${fileId} (${fileSize} bytes)`)
+          logDebug(`Uploaded file (${fileSize} bytes)`)
           return {
             done: true,
             value: {
@@ -735,9 +769,7 @@ export function parseFileSpecs(fileSpecs: string[]): File[] {
     const relativePath = spec.substring(colonIndex + 1)
 
     if (!fileId || !relativePath) {
-      logDebugError(
-        `Invalid file spec: ${spec}. Both file_id and path are required`,
-      )
+      logDebugError('Invalid file spec: missing file_id or relative path')
       continue
     }
 

src/services/api/logging.ts

@@ -22,12 +22,6 @@ import { logError } from 'src/utils/log.js'
 import { getAPIProviderForStatsig } from 'src/utils/model/providers.js'
 import type { PermissionMode } from 'src/utils/permissions/PermissionMode.js'
 import { jsonStringify } from 'src/utils/slowOperations.js'
-import { logOTelEvent } from 'src/utils/telemetry/events.js'
-import {
-  endLLMRequestSpan,
-  isBetaTracingEnabled,
-  type Span,
-} from 'src/utils/telemetry/sessionTracing.js'
 import type { NonNullableUsage } from '../../entrypoints/sdk/sdkUtilityTypes.js'
 import { consumeInvokingRequestId } from '../../utils/agentContext.js'
 import {
@@ -247,7 +241,6 @@ export function logAPIError({
   headers,
   queryTracking,
   querySource,
-  llmSpan,
   fastMode,
   previousRequestId,
 }: {
@@ -266,8 +259,6 @@ export function logAPIError({
   headers?: globalThis.Headers
   queryTracking?: QueryChainTracking
   querySource?: string
-  /** The span from startLLMRequestSpan - pass this to correctly match responses to requests */
-  llmSpan?: Span
   fastMode?: boolean
   previousRequestId?: string | null
 }): void {
@@ -364,24 +355,6 @@ export function logAPIError({
     ...getAnthropicEnvMetadata(),
   })
 
-  // Log API error event for OTLP
-  void logOTelEvent('api_error', {
-    model: model,
-    error: errStr,
-    status_code: String(status),
-    duration_ms: String(durationMs),
-    attempt: String(attempt),
-    speed: fastMode ? 'fast' : 'normal',
-  })
-
-  // Pass the span to correctly match responses to requests when beta tracing is enabled
-  endLLMRequestSpan(llmSpan, {
-    success: false,
-    statusCode: status ? parseInt(status) : undefined,
-    error: errStr,
-    attempt,
-  })
-
   // Log first error for teleported sessions (reliability tracking)
   const teleportInfo = getTeleportedSessionInfo()
   if (teleportInfo?.isTeleported && !teleportInfo.hasLoggedFirstMessage) {
@@ -597,7 +570,6 @@ export function logAPISuccessAndDuration({
   queryTracking,
   permissionMode,
   newMessages,
-  llmSpan,
   globalCacheStrategy,
   requestSetupMs,
   attemptStartTimes,
@@ -622,11 +594,7 @@ export function logAPISuccessAndDuration({
   costUSD: number
   queryTracking?: QueryChainTracking
   permissionMode?: PermissionMode
-  /** Assistant messages from the response - used to extract model_output and thinking_output
-   *  when beta tracing is enabled */
   newMessages?: AssistantMessage[]
-  /** The span from startLLMRequestSpan - pass this to correctly match responses to requests */
-  llmSpan?: Span
   /** Strategy used for global prompt caching: 'tool_based', 'system_prompt', or 'none' */
   globalCacheStrategy?: GlobalCacheStrategy
   /** Time spent in pre-request setup before the successful attempt */
@@ -714,68 +682,6 @@ export function logAPISuccessAndDuration({
     previousRequestId,
     betas,
   })
-  // Log API request event for OTLP
-  void logOTelEvent('api_request', {
-    model,
-    input_tokens: String(usage.input_tokens),
-    output_tokens: String(usage.output_tokens),
-    cache_read_tokens: String(usage.cache_read_input_tokens),
-    cache_creation_tokens: String(usage.cache_creation_input_tokens),
-    cost_usd: String(costUSD),
-    duration_ms: String(durationMs),
-    speed: fastMode ? 'fast' : 'normal',
-  })
-
-  // Extract model output, thinking output, and tool call flag when beta tracing is enabled
-  let modelOutput: string | undefined
-  let thinkingOutput: string | undefined
-  let hasToolCall: boolean | undefined
-
-  if (isBetaTracingEnabled() && newMessages) {
-    // Model output - visible to all users
-    modelOutput =
-      newMessages
-        .flatMap(m =>
-          m.message.content
-            .filter(c => c.type === 'text')
-            .map(c => (c as { type: 'text'; text: string }).text),
-        )
-        .join('\n') || undefined
-
-    // Thinking output - Ant-only (build-time gated)
-    if (process.env.USER_TYPE === 'ant') {
-      thinkingOutput =
-        newMessages
-          .flatMap(m =>
-            m.message.content
-              .filter(c => c.type === 'thinking')
-              .map(c => (c as { type: 'thinking'; thinking: string }).thinking),
-          )
-          .join('\n') || undefined
-    }
-
-    // Check if any tool_use blocks were in the output
-    hasToolCall = newMessages.some(m =>
-      m.message.content.some(c => c.type === 'tool_use'),
-    )
-  }
-
-  // Pass the span to correctly match responses to requests when beta tracing is enabled
-  endLLMRequestSpan(llmSpan, {
-    success: true,
-    inputTokens: usage.input_tokens,
-    outputTokens: usage.output_tokens,
-    cacheReadTokens: usage.cache_read_input_tokens,
-    cacheCreationTokens: usage.cache_creation_input_tokens,
-    attempt,
-    modelOutput,
-    thinkingOutput,
-    hasToolCall,
-    ttftMs: ttftMs ?? undefined,
-    requestSetupMs,
-    attemptStartTimes,
-  })
-
   // Log first successful message for teleported sessions (reliability tracking)
   const teleportInfo = getTeleportedSessionInfo()
   if (teleportInfo?.isTeleported && !teleportInfo.hasLoggedFirstMessage) {

src/services/api/metricsOptOut.ts

@@ -1,159 +0,0 @@
-import axios from 'axios'
-import { hasProfileScope, isClaudeAISubscriber } from '../../utils/auth.js'
-import { getGlobalConfig, saveGlobalConfig } from '../../utils/config.js'
-import { logForDebugging } from '../../utils/debug.js'
-import { errorMessage } from '../../utils/errors.js'
-import { getAuthHeaders, withOAuth401Retry } from '../../utils/http.js'
-import { logError } from '../../utils/log.js'
-import { memoizeWithTTLAsync } from '../../utils/memoize.js'
-import { isEssentialTrafficOnly } from '../../utils/privacyLevel.js'
-import { getClaudeCodeUserAgent } from '../../utils/userAgent.js'
-
-type MetricsEnabledResponse = {
-  metrics_logging_enabled: boolean
-}
-
-type MetricsStatus = {
-  enabled: boolean
-  hasError: boolean
-}
-
-// In-memory TTL — dedupes calls within a single process
-const CACHE_TTL_MS = 60 * 60 * 1000
-
-// Disk TTL — org settings rarely change. When disk cache is fresher than this,
-// we skip the network entirely (no background refresh). This is what collapses
-// N `claude -p` invocations into ~1 API call/day.
-const DISK_CACHE_TTL_MS = 24 * 60 * 60 * 1000
-
-/**
- * Internal function to call the API and check if metrics are enabled
- * This is wrapped by memoizeWithTTLAsync to add caching behavior
- */
-async function _fetchMetricsEnabled(): Promise<MetricsEnabledResponse> {
-  const authResult = getAuthHeaders()
-  if (authResult.error) {
-    throw new Error(`Auth error: ${authResult.error}`)
-  }
-
-  const headers = {
-    'Content-Type': 'application/json',
-    'User-Agent': getClaudeCodeUserAgent(),
-    ...authResult.headers,
-  }
-
-  const endpoint = `https://api.anthropic.com/api/claude_code/organizations/metrics_enabled`
-  const response = await axios.get<MetricsEnabledResponse>(endpoint, {
-    headers,
-    timeout: 5000,
-  })
-  return response.data
-}
-
-async function _checkMetricsEnabledAPI(): Promise<MetricsStatus> {
-  // Incident kill switch: skip the network call when nonessential traffic is disabled.
-  // Returning enabled:false sheds load at the consumer (bigqueryExporter skips
-  // export). Matches the non-subscriber early-return shape below.
-  if (isEssentialTrafficOnly()) {
-    return { enabled: false, hasError: false }
-  }
-
-  try {
-    const data = await withOAuth401Retry(_fetchMetricsEnabled, {
-      also403Revoked: true,
-    })
-
-    logForDebugging(
-      `Metrics opt-out API response: enabled=${data.metrics_logging_enabled}`,
-    )
-
-    return {
-      enabled: data.metrics_logging_enabled,
-      hasError: false,
-    }
-  } catch (error) {
-    logForDebugging(
-      `Failed to check metrics opt-out status: ${errorMessage(error)}`,
-    )
-    logError(error)
-    return { enabled: false, hasError: true }
-  }
-}
-
-// Create memoized version with custom error handling
-const memoizedCheckMetrics = memoizeWithTTLAsync(
-  _checkMetricsEnabledAPI,
-  CACHE_TTL_MS,
-)
-
-/**
- * Fetch (in-memory memoized) and persist to disk on change.
- * Errors are not persisted — a transient failure should not overwrite a
- * known-good disk value.
- */
-async function refreshMetricsStatus(): Promise<MetricsStatus> {
-  const result = await memoizedCheckMetrics()
-  if (result.hasError) {
-    return result
-  }
-
-  const cached = getGlobalConfig().metricsStatusCache
-  const unchanged = cached !== undefined && cached.enabled === result.enabled
-  // Skip write when unchanged AND timestamp still fresh — avoids config churn
-  // when concurrent callers race past a stale disk entry and all try to write.
-  if (unchanged && Date.now() - cached.timestamp < DISK_CACHE_TTL_MS) {
-    return result
-  }
-
-  saveGlobalConfig(current => ({
-    ...current,
-    metricsStatusCache: {
-      enabled: result.enabled,
-      timestamp: Date.now(),
-    },
-  }))
-  return result
-}
-
-/**
- * Check if metrics are enabled for the current organization.
- *
- * Two-tier cache:
- * - Disk (24h TTL): survives process restarts. Fresh disk cache → zero network.
- * - In-memory (1h TTL): dedupes the background refresh within a process.
- *
- * The caller (bigqueryExporter) tolerates stale reads — a missed export or
- * an extra one during the 24h window is acceptable.
- */
-export async function checkMetricsEnabled(): Promise<MetricsStatus> {
-  // Service key OAuth sessions lack user:profile scope → would 403.
-  // API key users (non-subscribers) fall through and use x-api-key auth.
-  // This check runs before the disk read so we never persist auth-state-derived
-  // answers — only real API responses go to disk. Otherwise a service-key
-  // session would poison the cache for a later full-OAuth session.
-  if (isClaudeAISubscriber() && !hasProfileScope()) {
-    return { enabled: false, hasError: false }
-  }
-
-  const cached = getGlobalConfig().metricsStatusCache
-  if (cached) {
-    if (Date.now() - cached.timestamp > DISK_CACHE_TTL_MS) {
-      // saveGlobalConfig's fallback path (config.ts:731) can throw if both
-      // locked and fallback writes fail — catch here so fire-and-forget
-      // doesn't become an unhandled rejection.
-      void refreshMetricsStatus().catch(logError)
-    }
-    return {
-      enabled: cached.enabled,
-      hasError: false,
-    }
-  }
-
-  // First-ever run on this machine: block on the network to populate disk.
-  return refreshMetricsStatus()
-}
-
-// Export for testing purposes only
-export const _clearMetricsEnabledCacheForTesting = (): void => {
-  memoizedCheckMetrics.cache.clear()
-}

src/services/api/sessionIngress.ts

@@ -19,6 +19,37 @@ interface SessionIngressError {
   }
 }
 
+function summarizeSessionIngressPayload(payload: unknown): string {
+  if (payload === null) return 'null'
+  if (payload === undefined) return 'undefined'
+  if (Array.isArray(payload)) return `array(${payload.length})`
+  if (typeof payload === 'object') {
+    const value = payload as Record<string, unknown>
+    return jsonStringify({
+      payloadType: 'object',
+      keys: Object.keys(value)
+        .sort()
+        .slice(0, 10),
+      loglinesCount: Array.isArray(value.loglines) ? value.loglines.length : 0,
+      dataCount: Array.isArray(value.data) ? value.data.length : 0,
+      hasNextCursor: typeof value.next_cursor === 'string',
+    })
+  }
+  return typeof payload
+}
+
+function summarizeSessionIngressErrorForDebug(error: unknown): string {
+  const err = error as AxiosError<SessionIngressError>
+  return jsonStringify({
+    errorType:
+      error instanceof Error ? error.constructor.name : typeof error,
+    hasMessage: error instanceof Error ? err.message.length > 0 : false,
+    hasStack: error instanceof Error ? Boolean(err.stack) : false,
+    status: err.status,
+    code: typeof err.code === 'string' ? err.code : undefined,
+  })
+}
+
 // Module-level state
 const lastUuidMap: Map<string, UUID> = new Map()
 
@@ -81,9 +112,7 @@ async function appendSessionLogImpl(
 
       if (response.status === 200 || response.status === 201) {
         lastUuidMap.set(sessionId, entry.uuid)
-        logForDebugging(
-          `Successfully persisted session log entry for session ${sessionId}`,
-        )
+        logForDebugging('Successfully persisted session log entry')
         return true
       }
 
@@ -96,7 +125,7 @@ async function appendSessionLogImpl(
           // Our entry IS the last entry on server - it was stored successfully previously
           lastUuidMap.set(sessionId, entry.uuid)
           logForDebugging(
-            `Session entry ${entry.uuid} already present on server, recovering from stale state`,
+            'Session entry already present on server, recovering from stale state',
           )
           logForDiagnosticsNoPII('info', 'session_persist_recovered_from_409')
           return true
@@ -108,7 +137,7 @@ async function appendSessionLogImpl(
         if (serverLastUuid) {
           lastUuidMap.set(sessionId, serverLastUuid as UUID)
           logForDebugging(
-            `Session 409: adopting server lastUuid=${serverLastUuid} from header, retrying entry ${entry.uuid}`,
+            'Session 409: adopting server last UUID from header and retrying',
           )
         } else {
           // Server didn't return x-last-uuid (e.g. v1 endpoint). Re-fetch
@@ -118,7 +147,7 @@ async function appendSessionLogImpl(
           if (adoptedUuid) {
             lastUuidMap.set(sessionId, adoptedUuid)
             logForDebugging(
-              `Session 409: re-fetched ${logs!.length} entries, adopting lastUuid=${adoptedUuid}, retrying entry ${entry.uuid}`,
+              `Session 409: re-fetched ${logs!.length} entries, adopting recovered last UUID and retrying`,
             )
           } else {
             // Can't determine server state — give up
@@ -127,7 +156,7 @@ async function appendSessionLogImpl(
               errorData.error?.message || 'Concurrent modification detected'
             logError(
               new Error(
-                `Session persistence conflict: UUID mismatch for session ${sessionId}, entry ${entry.uuid}. ${errorMessage}`,
+                `Session persistence conflict: UUID mismatch detected. ${errorMessage}`,
               ),
             )
             logForDiagnosticsNoPII(
@@ -149,7 +178,7 @@ async function appendSessionLogImpl(
 
       // Other 4xx (429, etc.) - retryable
       logForDebugging(
-        `Failed to persist session log: ${response.status} ${response.statusText}`,
+        `Failed to persist session log: status=${response.status}`,
       )
       logForDiagnosticsNoPII('error', 'session_persist_fail_status', {
         status: response.status,
@@ -158,7 +187,13 @@ async function appendSessionLogImpl(
     } catch (error) {
       // Network errors, 5xx - retryable
       const axiosError = error as AxiosError<SessionIngressError>
-      logError(new Error(`Error persisting session log: ${axiosError.message}`))
+      logError(
+        new Error(
+          `Error persisting session log: ${summarizeSessionIngressErrorForDebug(
+            error,
+          )}`,
+        ),
+      )
       logForDiagnosticsNoPII('error', 'session_persist_fail_status', {
         status: axiosError.status,
         attempt,
@@ -249,7 +284,7 @@ export async function getSessionLogsViaOAuth(
   orgUUID: string,
 ): Promise<Entry[] | null> {
   const url = `${getOauthConfig().BASE_API_URL}/v1/session_ingress/session/${sessionId}`
-  logForDebugging(`[session-ingress] Fetching session logs from: ${url}`)
+  logForDebugging('[session-ingress] Fetching session logs via OAuth endpoint')
   const headers = {
     ...getOAuthHeaders(accessToken),
     'x-organization-uuid': orgUUID,
@@ -299,7 +334,7 @@ export async function getTeleportEvents(
     'x-organization-uuid': orgUUID,
   }
 
-  logForDebugging(`[teleport] Fetching events from: ${baseUrl}`)
+  logForDebugging('[teleport] Fetching session events via teleport endpoint')
 
   const all: Entry[] = []
   let cursor: string | undefined
@@ -346,7 +381,7 @@ export async function getTeleportEvents(
       // 404 mid-pagination (pages > 0) means session was deleted between
       // pages — return what we have.
       logForDebugging(
-        `[teleport] Session ${sessionId} not found (page ${pages})`,
+        `[teleport] Session not found while fetching events (page ${pages})`,
       )
       logForDiagnosticsNoPII('warn', 'teleport_events_not_found')
       return pages === 0 ? null : all
@@ -362,7 +397,9 @@ export async function getTeleportEvents(
     if (response.status !== 200) {
       logError(
         new Error(
-          `Teleport events returned ${response.status}: ${jsonStringify(response.data)}`,
+          `Teleport events returned ${response.status}: ${summarizeSessionIngressPayload(
+            response.data,
+          )}`,
         ),
       )
       logForDiagnosticsNoPII('error', 'teleport_events_bad_status')
@@ -373,7 +410,9 @@ export async function getTeleportEvents(
     if (!Array.isArray(data)) {
       logError(
         new Error(
-          `Teleport events invalid response shape: ${jsonStringify(response.data)}`,
+          `Teleport events invalid response shape: ${summarizeSessionIngressPayload(
+            response.data,
+          )}`,
         ),
       )
       logForDiagnosticsNoPII('error', 'teleport_events_invalid_shape')
@@ -403,13 +442,13 @@ export async function getTeleportEvents(
     // Don't fail — return what we have. Better to teleport with a
     // truncated transcript than not at all.
     logError(
-      new Error(`Teleport events hit page cap (${maxPages}) for ${sessionId}`),
+      new Error(`Teleport events hit page cap (${maxPages})`),
     )
     logForDiagnosticsNoPII('warn', 'teleport_events_page_cap')
   }
 
   logForDebugging(
-    `[teleport] Fetched ${all.length} events over ${pages} page(s) for ${sessionId}`,
+    `[teleport] Fetched ${all.length} events over ${pages} page(s)`,
   )
   return all
 }
@@ -439,7 +478,9 @@ async function fetchSessionLogsFromUrl(
       if (!data || typeof data !== 'object' || !Array.isArray(data.loglines)) {
         logError(
           new Error(
-            `Invalid session logs response format: ${jsonStringify(data)}`,
+            `Invalid session logs response format: ${summarizeSessionIngressPayload(
+              data,
+            )}`,
           ),
         )
         logForDiagnosticsNoPII('error', 'session_get_fail_invalid_response')
@@ -447,14 +488,12 @@ async function fetchSessionLogsFromUrl(
       }
 
       const logs = data.loglines as Entry[]
-      logForDebugging(
-        `Fetched ${logs.length} session logs for session ${sessionId}`,
-      )
+      logForDebugging(`Fetched ${logs.length} session logs`)
       return logs
     }
 
     if (response.status === 404) {
-      logForDebugging(`No existing logs for session ${sessionId}`)
+      logForDebugging('No existing session logs')
       logForDiagnosticsNoPII('warn', 'session_get_no_logs_for_session')
       return []
     }
@@ -468,7 +507,7 @@ async function fetchSessionLogsFromUrl(
     }
 
     logForDebugging(
-      `Failed to fetch session logs: ${response.status} ${response.statusText}`,
+      `Failed to fetch session logs: status=${response.status}`,
     )
     logForDiagnosticsNoPII('error', 'session_get_fail_status', {
       status: response.status,
@@ -476,7 +515,13 @@ async function fetchSessionLogsFromUrl(
     return null
   } catch (error) {
     const axiosError = error as AxiosError<SessionIngressError>
-    logError(new Error(`Error fetching session logs: ${axiosError.message}`))
+    logError(
+      new Error(
+        `Error fetching session logs: ${summarizeSessionIngressErrorForDebug(
+          error,
+        )}`,
+      ),
+    )
     logForDiagnosticsNoPII('error', 'session_get_fail_status', {
       status: axiosError.status,
     })

src/services/compact/postCompactCleanup.ts

@@ -6,7 +6,6 @@ import { clearSpeculativeChecks } from '../../tools/BashTool/bashPermissions.js'
 import { clearClassifierApprovals } from '../../utils/classifierApprovals.js'
 import { resetGetMemoryFilesCache } from '../../utils/claudemd.js'
 import { clearSessionMessagesCache } from '../../utils/sessionStorage.js'
-import { clearBetaTracingState } from '../../utils/telemetry/betaSessionTracing.js'
 import { resetMicrocompactState } from './microCompact.js'
 
 /**
@@ -67,7 +66,6 @@ export function runPostCompactCleanup(querySource?: QuerySource): void {
   // model still has SkillTool in schema, invoked_skills preserves used
   // skills, and dynamic additions are handled by skillChangeDetector /
   // cacheUtils resets. See compactConversation() for full rationale.
-  clearBetaTracingState()
   if (feature('COMMIT_ATTRIBUTION')) {
     void import('../../utils/attributionHooks.js').then(m =>
       m.sweepFileContentCache(),

src/services/lsp/passiveFeedback.ts

@@ -8,6 +8,34 @@ import type { DiagnosticFile } from '../diagnosticTracking.js'
 import { registerPendingLSPDiagnostic } from './LSPDiagnosticRegistry.js'
 import type { LSPServerManager } from './LSPServerManager.js'
 
+function summarizeLspErrorForDebug(error: unknown): string {
+  const err = toError(error)
+  return jsonStringify({
+    errorType: err.constructor.name,
+    errorName: err.name,
+    hasMessage: err.message.length > 0,
+  })
+}
+
+function summarizeDiagnosticParamsForDebug(params: unknown): string {
+  if (!params || typeof params !== 'object') {
+    return jsonStringify({
+      paramsType: typeof params,
+      hasValue: params !== undefined && params !== null,
+    })
+  }
+
+  const paramRecord = params as Record<string, unknown>
+  const diagnostics = paramRecord.diagnostics
+  return jsonStringify({
+    keys: Object.keys(paramRecord)
+      .sort()
+      .slice(0, 10),
+    hasUri: typeof paramRecord.uri === 'string',
+    diagnosticsCount: Array.isArray(diagnostics) ? diagnostics.length : 0,
+  })
+}
+
 /**
  * Map LSP severity to Claude diagnostic severity
  *
@@ -54,7 +82,9 @@ export function formatDiagnosticsForAttachment(
     const err = toError(error)
     logError(err)
     logForDebugging(
-      `Failed to convert URI to file path: ${params.uri}. Error: ${err.message}. Using original URI as fallback.`,
+      `Failed to convert diagnostic URI to file path; using original URI fallback (${summarizeLspErrorForDebug(
+        err,
+      )})`,
     )
     // Gracefully fallback to original URI - LSP servers may send malformed URIs
     uri = params.uri
@@ -177,14 +207,16 @@ export function registerLSPNotificationHandlers(
               )
               logError(err)
               logForDebugging(
-                `Invalid diagnostic params from ${serverName}: ${jsonStringify(params)}`,
+                `Invalid diagnostic params from ${serverName}: ${summarizeDiagnosticParamsForDebug(
+                  params,
+                )}`,
               )
               return
             }
 
             const diagnosticParams = params as PublishDiagnosticsParams
             logForDebugging(
-              `Received diagnostics from ${serverName}: ${diagnosticParams.diagnostics.length} diagnostic(s) for ${diagnosticParams.uri}`,
+              `Received diagnostics from ${serverName}: ${diagnosticParams.diagnostics.length} diagnostic(s)`,
             )
 
             // Convert LSP diagnostics to Claude format (can throw on invalid URIs)
@@ -199,7 +231,7 @@ export function registerLSPNotificationHandlers(
               firstFile.diagnostics.length === 0
             ) {
               logForDebugging(
-                `Skipping empty diagnostics from ${serverName} for ${diagnosticParams.uri}`,
+                `Skipping empty diagnostics from ${serverName}`,
               )
               return
             }
@@ -223,9 +255,8 @@ export function registerLSPNotificationHandlers(
               logError(err)
               logForDebugging(
                 `Error registering LSP diagnostics from ${serverName}: ` +
-                  `URI: ${diagnosticParams.uri}, ` +
                   `Diagnostic count: ${firstFile.diagnostics.length}, ` +
-                  `Error: ${err.message}`,
+                  `Error: ${summarizeLspErrorForDebug(err)}`,
               )
 
               // Track consecutive failures and warn after 3+
@@ -234,7 +265,7 @@ export function registerLSPNotificationHandlers(
                 lastError: '',
               }
               failures.count++
-              failures.lastError = err.message
+              failures.lastError = summarizeLspErrorForDebug(err)
               diagnosticFailures.set(serverName, failures)
 
               if (failures.count >= 3) {
@@ -251,7 +282,9 @@ export function registerLSPNotificationHandlers(
             const err = toError(error)
             logError(err)
             logForDebugging(
-              `Unexpected error processing diagnostics from ${serverName}: ${err.message}`,
+              `Unexpected error processing diagnostics from ${serverName}: ${summarizeLspErrorForDebug(
+                err,
+              )}`,
             )
 
             // Track consecutive failures and warn after 3+
@@ -260,7 +293,7 @@ export function registerLSPNotificationHandlers(
               lastError: '',
             }
             failures.count++
-            failures.lastError = err.message
+            failures.lastError = summarizeLspErrorForDebug(err)
             diagnosticFailures.set(serverName, failures)
 
             if (failures.count >= 3) {
@@ -284,13 +317,13 @@ export function registerLSPNotificationHandlers(
 
       registrationErrors.push({
         serverName,
-        error: err.message,
+        error: summarizeLspErrorForDebug(err),
       })
 
       logError(err)
       logForDebugging(
         `Failed to register diagnostics handler for ${serverName}: ` +
-          `Error: ${err.message}`,
+          `Error: ${summarizeLspErrorForDebug(err)}`,
       )
     }
   }

src/services/mcp/auth.ts

@@ -93,35 +93,77 @@ type MCPOAuthFlowErrorReason =
 
 const MAX_LOCK_RETRIES = 5
 
-/**
- * OAuth query parameters that should be redacted from logs.
- * These contain sensitive values that could enable CSRF or session fixation attacks.
- */
-const SENSITIVE_OAUTH_PARAMS = [
-  'state',
-  'nonce',
-  'code_challenge',
-  'code_verifier',
-  'code',
-]
-
-/**
- * Redacts sensitive OAuth query parameters from a URL for safe logging.
- * Prevents exposure of state, nonce, code_challenge, code_verifier, and authorization codes.
- */
-function redactSensitiveUrlParams(url: string): string {
-  try {
-    const parsedUrl = new URL(url)
-    for (const param of SENSITIVE_OAUTH_PARAMS) {
-      if (parsedUrl.searchParams.has(param)) {
-        parsedUrl.searchParams.set(param, '[REDACTED]')
-      }
+function summarizeHeadersForDebug(
+  headers: Record<string, string> | undefined,
+): {
+  headerCount: number
+  headerNames: string[]
+  hasAuthorization: boolean
+} {
+  if (!headers) {
+    return {
+      headerCount: 0,
+      headerNames: [],
+      hasAuthorization: false,
     }
-    return parsedUrl.toString()
-  } catch {
-    // Return as-is if not a valid URL
-    return url
   }
+
+  const headerNames = Object.keys(headers).sort()
+  return {
+    headerCount: headerNames.length,
+    headerNames,
+    hasAuthorization: headerNames.some(
+      headerName => headerName.toLowerCase() === 'authorization',
+    ),
+  }
+}
+
+function extractHttpStatusFromErrorMessage(message: string): number | undefined {
+  const statusMatch = message.match(/^HTTP (\d{3}):/)
+  if (!statusMatch) {
+    return undefined
+  }
+  return Number(statusMatch[1])
+}
+
+function summarizeOAuthErrorForDebug(error: unknown): string {
+  const summary: Record<string, boolean | number | string> = {}
+
+  if (error instanceof Error) {
+    summary.errorType = error.constructor.name
+    summary.errorName = error.name
+    summary.hasMessage = error.message.length > 0
+
+    const httpStatus = extractHttpStatusFromErrorMessage(error.message)
+    if (httpStatus !== undefined) {
+      summary.httpStatus = httpStatus
+    }
+
+    if (error instanceof OAuthError) {
+      summary.oauthErrorCode = error.errorCode
+    }
+  } else {
+    summary.errorType = typeof error
+    summary.hasValue = error !== undefined && error !== null
+  }
+
+  const errno = getErrnoCode(error)
+  if (errno) {
+    summary.errno = errno
+  }
+
+  if (axios.isAxiosError(error)) {
+    summary.errorType = 'AxiosError'
+    if (error.code) {
+      summary.axiosCode = error.code
+    }
+    if (typeof error.response?.status === 'number') {
+      summary.httpStatus = error.response.status
+    }
+    summary.hasResponseData = error.response?.data !== undefined
+  }
+
+  return jsonStringify(summary)
 }
 
 /**
@@ -295,7 +337,9 @@ async function fetchAuthServerMetadata(
     // to the legacy path-aware retry.
     logMCPDebug(
       serverName,
-      `RFC 9728 discovery failed, falling back: ${errorMessage(err)}`,
+      `RFC 9728 discovery failed, falling back: ${summarizeOAuthErrorForDebug(
+        err,
+      )}`,
     )
   }
 
@@ -517,7 +561,7 @@ export async function revokeServerTokens(
               : 'client_secret_basic'
           logMCPDebug(
             serverName,
-            `Revoking tokens via ${revocationEndpointStr} (${authMethod})`,
+            `Revoking tokens via discovered OAuth revocation endpoint (${authMethod})`,
           )
 
           // Revoke refresh token first (more important - prevents future access token generation)
@@ -537,7 +581,9 @@ export async function revokeServerTokens(
               // Log but continue
               logMCPDebug(
                 serverName,
-                `Failed to revoke refresh token: ${errorMessage(error)}`,
+                `Failed to revoke refresh token: ${summarizeOAuthErrorForDebug(
+                  error,
+                )}`,
               )
             }
           }
@@ -558,7 +604,9 @@ export async function revokeServerTokens(
             } catch (error: unknown) {
               logMCPDebug(
                 serverName,
-                `Failed to revoke access token: ${errorMessage(error)}`,
+                `Failed to revoke access token: ${summarizeOAuthErrorForDebug(
+                  error,
+                )}`,
               )
             }
           }
@@ -566,7 +614,10 @@ export async function revokeServerTokens(
       }
     } catch (error: unknown) {
       // Log error but don't throw - revocation is best-effort
-      logMCPDebug(serverName, `Failed to revoke tokens: ${errorMessage(error)}`)
+      logMCPDebug(
+        serverName,
+        `Failed to revoke tokens: ${summarizeOAuthErrorForDebug(error)}`,
+      )
     }
   } else {
     logMCPDebug(serverName, 'No tokens to revoke')
@@ -696,14 +747,11 @@ async function performMCPXaaAuth(
     const haveKeys = Object.keys(
       getSecureStorage().read()?.mcpOAuthClientConfig ?? {},
     )
-    const headersForLogging = Object.fromEntries(
-      Object.entries(serverConfig.headers ?? {}).map(([k, v]) =>
-        k.toLowerCase() === 'authorization' ? [k, '[REDACTED]'] : [k, v],
-      ),
-    )
     logMCPDebug(
       serverName,
-      `XAA: secret lookup miss. wanted=${wantedKey} have=[${haveKeys.join(', ')}] configHeaders=${jsonStringify(headersForLogging)}`,
+      `XAA: secret lookup miss. wanted=${wantedKey} availableKeys=${haveKeys.length} configHeaderSummary=${jsonStringify(
+        summarizeHeadersForDebug(serverConfig.headers),
+      )}`,
     )
     throw new Error(
       `XAA: AS client secret not found for '${serverName}'. Re-add with --client-secret.`,
@@ -923,10 +971,7 @@ export async function performMCPOAuthFlow(
     try {
       resourceMetadataUrl = new URL(cachedResourceMetadataUrl)
     } catch {
-      logMCPDebug(
-        serverName,
-        `Invalid cached resourceMetadataUrl: ${cachedResourceMetadataUrl}`,
-      )
+      logMCPDebug(serverName, 'Invalid cached resource metadata URL')
     }
   }
   const wwwAuthParams: WWWAuthenticateParams = {
@@ -988,13 +1033,15 @@ export async function performMCPOAuthFlow(
         provider.setMetadata(metadata)
         logMCPDebug(
           serverName,
-          `Fetched OAuth metadata with scope: ${getScopeFromMetadata(metadata) || 'NONE'}`,
+          `Fetched OAuth metadata (hasScope=${Boolean(
+            getScopeFromMetadata(metadata),
+          )})`,
         )
       }
     } catch (error) {
       logMCPDebug(
         serverName,
-        `Failed to fetch OAuth metadata: ${errorMessage(error)}`,
+        `Failed to fetch OAuth metadata: ${summarizeOAuthErrorForDebug(error)}`,
       )
     }
 
@@ -1170,8 +1217,10 @@ export async function performMCPOAuthFlow(
 
       server.listen(port, '127.0.0.1', async () => {
         try {
-          logMCPDebug(serverName, `Starting SDK auth`)
-          logMCPDebug(serverName, `Server URL: ${serverConfig.url}`)
+          logMCPDebug(
+            serverName,
+            `Starting SDK auth (transport=${serverConfig.type})`,
+          )
 
           // First call to start the auth flow - should redirect
           // Pass the scope and resource_metadata from WWW-Authenticate header if available
@@ -1189,7 +1238,10 @@ export async function performMCPOAuthFlow(
             )
           }
         } catch (error) {
-          logMCPDebug(serverName, `SDK auth error: ${error}`)
+          logMCPDebug(
+            serverName,
+            `SDK auth error: ${summarizeOAuthErrorForDebug(error)}`,
+          )
           cleanup()
           rejectOnce(new Error(`SDK auth failed: ${errorMessage(error)}`))
         }
@@ -1235,9 +1287,13 @@ export async function performMCPOAuthFlow(
       if (savedTokens) {
         logMCPDebug(
           serverName,
-          `Token access_token length: ${savedTokens.access_token?.length}`,
+          `Token summary after auth: ${jsonStringify({
+            hasAccessToken: Boolean(savedTokens.access_token),
+            hasRefreshToken: Boolean(savedTokens.refresh_token),
+            expiresInSec: savedTokens.expires_in,
+            hasScope: Boolean(savedTokens.scope),
+          })}`,
         )
-        logMCPDebug(serverName, `Token expires_in: ${savedTokens.expires_in}`)
       }
 
       logEvent('tengu_mcp_oauth_flow_success', {
@@ -1257,7 +1313,10 @@ export async function performMCPOAuthFlow(
       throw new Error('Unexpected auth result: ' + result)
     }
   } catch (error) {
-    logMCPDebug(serverName, `Error during auth completion: ${error}`)
+    logMCPDebug(
+      serverName,
+      `Error during auth completion: ${summarizeOAuthErrorForDebug(error)}`,
+    )
 
     // Determine failure reason for attribution telemetry. The try block covers
     // port acquisition, the callback server, the redirect flow, and token
@@ -1298,9 +1357,9 @@ export async function performMCPOAuthFlow(
       // SDK does not attach HTTP status as a property, but the fallback ServerError
       // embeds it in the message as "HTTP {status}:" when the response body was
       // unparseable. Best-effort extraction.
-      const statusMatch = error.message.match(/^HTTP (\d{3}):/)
-      if (statusMatch) {
-        httpStatus = Number(statusMatch[1])
+      const parsedStatus = extractHttpStatusFromErrorMessage(error.message)
+      if (parsedStatus !== undefined) {
+        httpStatus = parsedStatus
       }
       // If client not found, clear the stored client ID and suggest retry
       if (
@@ -1429,7 +1488,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
       metadata.scope = metadataScope
       logMCPDebug(
         this.serverName,
-        `Using scope from metadata: ${metadata.scope}`,
+        'Using scope from metadata',
       )
     }
 
@@ -1445,7 +1504,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
   get clientMetadataUrl(): string | undefined {
     const override = process.env.MCP_OAUTH_CLIENT_METADATA_URL
     if (override) {
-      logMCPDebug(this.serverName, `Using CIMD URL from env: ${override}`)
+      logMCPDebug(this.serverName, 'Using CIMD URL from env override')
       return override
     }
     return MCP_CLIENT_METADATA_URL
@@ -1467,7 +1526,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
    */
   markStepUpPending(scope: string): void {
     this._pendingStepUpScope = scope
-    logMCPDebug(this.serverName, `Marked step-up pending: ${scope}`)
+    logMCPDebug(this.serverName, 'Marked step-up pending')
   }
 
   async state(): Promise<string> {
@@ -1606,7 +1665,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
       } catch (e) {
         logMCPDebug(
           this.serverName,
-          `XAA silent exchange failed: ${errorMessage(e)}`,
+          `XAA silent exchange failed: ${summarizeOAuthErrorForDebug(e)}`,
         )
       }
       // Fall through. Either id_token isn't cached (xaaRefresh returned
@@ -1632,7 +1691,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
     if (needsStepUp) {
       logMCPDebug(
         this.serverName,
-        `Step-up pending (${this._pendingStepUpScope}), omitting refresh_token`,
+        'Step-up pending, omitting refresh_token',
       )
     }
 
@@ -1679,7 +1738,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
       } catch (error) {
         logMCPDebug(
           this.serverName,
-          `Token refresh error: ${errorMessage(error)}`,
+          `Token refresh error: ${summarizeOAuthErrorForDebug(error)}`,
         )
       }
     }
@@ -1693,10 +1752,15 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
       token_type: 'Bearer',
     }
 
-    logMCPDebug(this.serverName, `Returning tokens`)
-    logMCPDebug(this.serverName, `Token length: ${tokens.access_token?.length}`)
-    logMCPDebug(this.serverName, `Has refresh token: ${!!tokens.refresh_token}`)
-    logMCPDebug(this.serverName, `Expires in: ${Math.floor(expiresIn)}s`)
+    logMCPDebug(
+      this.serverName,
+      `Returning tokens: ${jsonStringify({
+        hasAccessToken: Boolean(tokens.access_token),
+        hasRefreshToken: Boolean(tokens.refresh_token),
+        hasScope: Boolean(tokens.scope),
+        expiresInSec: Math.floor(expiresIn),
+      })}`,
+    )
 
     return tokens
   }
@@ -1707,9 +1771,15 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
     const existingData = storage.read() || {}
     const serverKey = getServerKey(this.serverName, this.serverConfig)
 
-    logMCPDebug(this.serverName, `Saving tokens`)
-    logMCPDebug(this.serverName, `Token expires in: ${tokens.expires_in}`)
-    logMCPDebug(this.serverName, `Has refresh token: ${!!tokens.refresh_token}`)
+    logMCPDebug(
+      this.serverName,
+      `Saving tokens: ${jsonStringify({
+        hasAccessToken: Boolean(tokens.access_token),
+        hasRefreshToken: Boolean(tokens.refresh_token),
+        hasScope: Boolean(tokens.scope),
+        expiresInSec: tokens.expires_in,
+      })}`,
+    )
 
     const updatedData: SecureStorageData = {
       ...existingData,
@@ -1783,7 +1853,9 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
     } catch (e) {
       logMCPDebug(
         this.serverName,
-        `XAA: OIDC discovery failed in silent refresh: ${errorMessage(e)}`,
+        `XAA: OIDC discovery failed in silent refresh: ${summarizeOAuthErrorForDebug(
+          e,
+        )}`,
       )
       return undefined
     }
@@ -1855,29 +1927,18 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
 
     // Extract and store scopes from the authorization URL for later use in token exchange
     const scopes = authorizationUrl.searchParams.get('scope')
-    logMCPDebug(
-      this.serverName,
-      `Authorization URL: ${redactSensitiveUrlParams(authorizationUrl.toString())}`,
-    )
-    logMCPDebug(this.serverName, `Scopes in URL: ${scopes || 'NOT FOUND'}`)
 
     if (scopes) {
       this._scopes = scopes
-      logMCPDebug(
-        this.serverName,
-        `Captured scopes from authorization URL: ${scopes}`,
-      )
+      logMCPDebug(this.serverName, 'Captured scopes from authorization URL')
     } else {
       // If no scope in URL, try to get it from metadata
       const metadataScope = getScopeFromMetadata(this._metadata)
       if (metadataScope) {
         this._scopes = metadataScope
-        logMCPDebug(
-          this.serverName,
-          `Using scopes from metadata: ${metadataScope}`,
-        )
+        logMCPDebug(this.serverName, 'Using scopes from metadata')
       } else {
-        logMCPDebug(this.serverName, `No scopes available from URL or metadata`)
+        logMCPDebug(this.serverName, 'No scopes available from URL or metadata')
       }
     }
 
@@ -1895,7 +1956,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
       if (existing) {
         existing.stepUpScope = this._scopes
         storage.update(existingData)
-        logMCPDebug(this.serverName, `Persisted step-up scope: ${this._scopes}`)
+        logMCPDebug(this.serverName, 'Persisted step-up scope')
       }
     }
 
@@ -1916,8 +1977,6 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
     }
 
     logMCPDebug(this.serverName, `Redirecting to authorization URL`)
-    const redactedUrl = redactSensitiveUrlParams(urlString)
-    logMCPDebug(this.serverName, `Authorization URL: ${redactedUrl}`)
 
     // Notify the UI about the authorization URL BEFORE opening the browser,
     // so users can see the URL as a fallback if the browser fails to open
@@ -1926,7 +1985,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
     }
 
     if (!this.skipBrowserOpen) {
-      logMCPDebug(this.serverName, `Opening authorization URL: ${redactedUrl}`)
+      logMCPDebug(this.serverName, 'Opening authorization URL')
 
       const success = await openBrowser(urlString)
       if (!success) {
@@ -1938,7 +1997,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
     } else {
       logMCPDebug(
         this.serverName,
-        `Skipping browser open (skipBrowserOpen=true). URL: ${redactedUrl}`,
+        'Skipping browser open (skipBrowserOpen=true)',
       )
     }
   }
@@ -1991,7 +2050,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
     }
 
     storage.update(existingData)
-    logMCPDebug(this.serverName, `Invalidated credentials (scope: ${scope})`)
+    logMCPDebug(this.serverName, `Invalidated credentials (${scope})`)
   }
 
   async saveDiscoveryState(state: OAuthDiscoveryState): Promise<void> {
@@ -1999,10 +2058,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
     const existingData = storage.read() || {}
     const serverKey = getServerKey(this.serverName, this.serverConfig)
 
-    logMCPDebug(
-      this.serverName,
-      `Saving discovery state (authServer: ${state.authorizationServerUrl})`,
-    )
+    logMCPDebug(this.serverName, 'Saving discovery state')
 
     // Persist only the URLs, NOT the full metadata blobs.
     // authorizationServerMetadata alone is ~1.5-2KB per MCP server (every
@@ -2041,10 +2097,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
 
     const cached = data?.mcpOAuth?.[serverKey]?.discoveryState
     if (cached?.authorizationServerUrl) {
-      logMCPDebug(
-        this.serverName,
-        `Returning cached discovery state (authServer: ${cached.authorizationServerUrl})`,
-      )
+      logMCPDebug(this.serverName, 'Returning cached discovery state')
 
       return {
         authorizationServerUrl: cached.authorizationServerUrl,
@@ -2061,7 +2114,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
     if (metadataUrl) {
       logMCPDebug(
         this.serverName,
-        `Fetching metadata from configured URL: ${metadataUrl}`,
+        'Fetching metadata from configured override URL',
       )
       try {
         const metadata = await fetchAuthServerMetadata(
@@ -2079,7 +2132,9 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
       } catch (error) {
         logMCPDebug(
           this.serverName,
-          `Failed to fetch from configured metadata URL: ${errorMessage(error)}`,
+          `Failed to fetch from configured metadata URL: ${summarizeOAuthErrorForDebug(
+            error,
+          )}`,
         )
       }
     }
@@ -2231,7 +2286,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
           } else if (cached?.authorizationServerUrl) {
             logMCPDebug(
               this.serverName,
-              `Re-discovering metadata from persisted auth server URL: ${cached.authorizationServerUrl}`,
+              'Re-discovering metadata from persisted auth server URL',
             )
             metadata = await discoverAuthorizationServerMetadata(
               cached.authorizationServerUrl,
@@ -2287,10 +2342,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
         // Invalid grant means the refresh token itself is invalid/revoked/expired.
         // But another process may have already refreshed successfully — check first.
         if (error instanceof InvalidGrantError) {
-          logMCPDebug(
-            this.serverName,
-            `Token refresh failed with invalid_grant: ${error.message}`,
-          )
+          logMCPDebug(this.serverName, 'Token refresh failed with invalid_grant')
           clearKeychainCache()
           const storage = getSecureStorage()
           const data = storage.read()
@@ -2337,7 +2389,7 @@ export class ClaudeAuthProvider implements OAuthClientProvider {
         if (!isRetryable || attempt >= MAX_ATTEMPTS) {
           logMCPDebug(
             this.serverName,
-            `Token refresh failed: ${errorMessage(error)}`,
+            `Token refresh failed: ${summarizeOAuthErrorForDebug(error)}`,
           )
           emitRefreshEvent(
             'failure',

src/services/mcp/client.ts

@@ -332,6 +332,94 @@ function mcpBaseUrlAnalytics(serverRef: ScopedMcpServerConfig): {
     : {}
 }
 
+function mcpBaseUrlForDebug(serverRef: ScopedMcpServerConfig): string {
+  return getLoggingSafeMcpBaseUrl(serverRef) || '[unavailable]'
+}
+
+function summarizeHeadersForDebug(
+  headers: Record<string, string> | undefined,
+): {
+  headerCount: number
+  headerNames: string[]
+  hasAuthorization: boolean
+} {
+  if (!headers) {
+    return {
+      headerCount: 0,
+      headerNames: [],
+      hasAuthorization: false,
+    }
+  }
+
+  const headerNames = Object.keys(headers)
+  return {
+    headerCount: headerNames.length,
+    headerNames: headerNames.sort(),
+    hasAuthorization: headerNames.some(
+      headerName => headerName.toLowerCase() === 'authorization',
+    ),
+  }
+}
+
+function summarizeProxyEnvForDebug(): Record<string, string | boolean> {
+  return {
+    hasNodeOptions: Boolean(process.env.NODE_OPTIONS),
+    uvThreadpoolSizeConfigured: Boolean(process.env.UV_THREADPOOL_SIZE),
+    hasHttpProxy: Boolean(process.env.HTTP_PROXY),
+    hasHttpsProxy: Boolean(process.env.HTTPS_PROXY),
+    hasNoProxy: Boolean(process.env.NO_PROXY),
+  }
+}
+
+function summarizeStderrForDebug(stderrOutput: string): string {
+  const trimmed = stderrOutput.trim()
+  const lineCount = trimmed === '' ? 0 : trimmed.split('\n').length
+  return `Server stderr captured (${trimmed.length} chars, ${lineCount} lines)`
+}
+
+function summarizeMcpErrorForDebug(error: unknown): string {
+  const summary: Record<string, boolean | number | string> = {}
+
+  if (error instanceof Error) {
+    summary.errorType = error.constructor.name
+    summary.errorName = error.name
+    summary.hasMessage = error.message.length > 0
+    summary.hasStack = Boolean(error.stack)
+
+    const errorObj = error as Error & {
+      code?: unknown
+      errno?: unknown
+      syscall?: unknown
+      status?: unknown
+      cause?: unknown
+    }
+
+    if (typeof errorObj.code === 'string' || typeof errorObj.code === 'number') {
+      summary.code = errorObj.code
+    }
+    if (
+      typeof errorObj.errno === 'string' ||
+      typeof errorObj.errno === 'number'
+    ) {
+      summary.errno = errorObj.errno
+    }
+    if (typeof errorObj.syscall === 'string') {
+      summary.syscall = errorObj.syscall
+    }
+    if (typeof errorObj.status === 'number') {
+      summary.status = errorObj.status
+    }
+    if (errorObj.cause !== undefined) {
+      summary.hasCause = true
+    }
+  } else {
+    summary.errorType = typeof error
+    summary.hasValue = error !== undefined && error !== null
+  }
+
+  return jsonStringify(summary)
+}
+
 /**
  * Shared handler for sse/http/claudeai-proxy auth failures during connect:
  * emits tengu_mcp_server_needs_auth, caches the needs-auth entry, and returns
@@ -676,7 +764,10 @@ export const connectToServer = memoize(
         )
         logMCPDebug(name, `SSE transport initialized, awaiting connection`)
       } else if (serverRef.type === 'sse-ide') {
-        logMCPDebug(name, `Setting up SSE-IDE transport to ${serverRef.url}`)
+        logMCPDebug(
+          name,
+          `Setting up SSE-IDE transport to ${mcpBaseUrlForDebug(serverRef)}`,
+        )
         // IDE servers don't need authentication
         // TODO: Use the auth token provided in the lockfile
         const proxyOptions = getProxyFetchOptions()
@@ -735,7 +826,7 @@ export const connectToServer = memoize(
       } else if (serverRef.type === 'ws') {
         logMCPDebug(
           name,
-          `Initializing WebSocket transport to ${serverRef.url}`,
+          `Initializing WebSocket transport to ${mcpBaseUrlForDebug(serverRef)}`,
         )
 
         const combinedHeaders = await getMcpServerHeaders(name, serverRef)
@@ -749,16 +840,17 @@ export const connectToServer = memoize(
           ...combinedHeaders,
         }
 
-        // Redact sensitive headers before logging
-        const wsHeadersForLogging = mapValues(wsHeaders, (value, key) =>
-          key.toLowerCase() === 'authorization' ? '[REDACTED]' : value,
+        const wsHeadersForLogging = summarizeHeadersForDebug(
+          mapValues(wsHeaders, (_value, key) =>
+            key.toLowerCase() === 'authorization' ? '[REDACTED]' : '[set]',
+          ),
         )
 
         logMCPDebug(
           name,
           `WebSocket transport options: ${jsonStringify({
-            url: serverRef.url,
-            headers: wsHeadersForLogging,
+            url: mcpBaseUrlForDebug(serverRef),
+            ...wsHeadersForLogging,
             hasSessionAuth: !!sessionIngressToken,
           })}`,
         )
@@ -782,20 +874,17 @@ export const connectToServer = memoize(
         }
         transport = new WebSocketTransport(wsClient)
       } else if (serverRef.type === 'http') {
-        logMCPDebug(name, `Initializing HTTP transport to ${serverRef.url}`)
+        logMCPDebug(
+          name,
+          `Initializing HTTP transport to ${mcpBaseUrlForDebug(serverRef)}`,
+        )
         logMCPDebug(
           name,
           `Node version: ${process.version}, Platform: ${process.platform}`,
         )
         logMCPDebug(
           name,
-          `Environment: ${jsonStringify({
-            NODE_OPTIONS: process.env.NODE_OPTIONS || 'not set',
-            UV_THREADPOOL_SIZE: process.env.UV_THREADPOOL_SIZE || 'default',
-            HTTP_PROXY: process.env.HTTP_PROXY || 'not set',
-            HTTPS_PROXY: process.env.HTTPS_PROXY || 'not set',
-            NO_PROXY: process.env.NO_PROXY || 'not set',
-          })}`,
+          `Environment: ${jsonStringify(summarizeProxyEnvForDebug())}`,
         )
 
         // Create an auth provider for this server
@@ -843,16 +932,16 @@ export const connectToServer = memoize(
         const headersForLogging = transportOptions.requestInit?.headers
           ? mapValues(
               transportOptions.requestInit.headers as Record<string, string>,
-              (value, key) =>
-                key.toLowerCase() === 'authorization' ? '[REDACTED]' : value,
+              (_value, key) =>
+                key.toLowerCase() === 'authorization' ? '[REDACTED]' : '[set]',
             )
           : undefined
 
         logMCPDebug(
           name,
           `HTTP transport options: ${jsonStringify({
-            url: serverRef.url,
-            headers: headersForLogging,
+            url: mcpBaseUrlForDebug(serverRef),
+            ...summarizeHeadersForDebug(headersForLogging),
             hasAuthProvider: !!authProvider,
             timeoutMs: MCP_REQUEST_TIMEOUT_MS,
           })}`,
@@ -879,7 +968,7 @@ export const connectToServer = memoize(
         const oauthConfig = getOauthConfig()
         const proxyUrl = `${oauthConfig.MCP_PROXY_URL}${oauthConfig.MCP_PROXY_PATH.replace('{server_id}', serverRef.id)}`
 
-        logMCPDebug(name, `Using claude.ai proxy at ${proxyUrl}`)
+        logMCPDebug(name, `Using claude.ai proxy transport`)
 
         // eslint-disable-next-line eslint-plugin-n/no-unsupported-features/node-builtins
         const fetchWithAuth = createClaudeAiProxyFetch(globalThis.fetch)
@@ -1025,23 +1114,28 @@ export const connectToServer = memoize(
 
       // For HTTP transport, try a basic connectivity test first
       if (serverRef.type === 'http') {
-        logMCPDebug(name, `Testing basic HTTP connectivity to ${serverRef.url}`)
+        logMCPDebug(
+          name,
+          `Testing basic HTTP connectivity to ${mcpBaseUrlForDebug(serverRef)}`,
+        )
         try {
           const testUrl = new URL(serverRef.url)
-          logMCPDebug(
-            name,
-            `Parsed URL: host=${testUrl.hostname}, port=${testUrl.port || 'default'}, protocol=${testUrl.protocol}`,
-          )
+          logMCPDebug(name, 'Parsed HTTP endpoint for preflight checks')
 
           // Log DNS resolution attempt
           if (
             testUrl.hostname === '127.0.0.1' ||
             testUrl.hostname === 'localhost'
           ) {
-            logMCPDebug(name, `Using loopback address: ${testUrl.hostname}`)
+            logMCPDebug(name, 'Using loopback HTTP endpoint')
           }
         } catch (urlError) {
-          logMCPDebug(name, `Failed to parse URL: ${urlError}`)
+          logMCPDebug(
+            name,
+            `Failed to parse HTTP endpoint for preflight: ${summarizeMcpErrorForDebug(
+              urlError,
+            )}`,
+          )
         }
       }
 
@@ -1079,7 +1173,7 @@ export const connectToServer = memoize(
       try {
         await Promise.race([connectPromise, timeoutPromise])
         if (stderrOutput) {
-          logMCPError(name, `Server stderr: ${stderrOutput}`)
+          logMCPError(name, summarizeStderrForDebug(stderrOutput))
           stderrOutput = '' // Release accumulated string to prevent memory growth
         }
         const elapsed = Date.now() - connectStartTime
@@ -1093,30 +1187,29 @@ export const connectToServer = memoize(
         if (serverRef.type === 'sse' && error instanceof Error) {
           logMCPDebug(
             name,
-            `SSE Connection failed after ${elapsed}ms: ${jsonStringify({
-              url: serverRef.url,
-              error: error.message,
-              errorType: error.constructor.name,
-              stack: error.stack,
-            })}`,
+            `SSE connection failed after ${elapsed}ms: ${summarizeMcpErrorForDebug(
+              error,
+            )}`,
+          )
+          logMCPError(
+            name,
+            `SSE connection failed: ${summarizeMcpErrorForDebug(error)}`,
           )
-          logMCPError(name, error)
 
           if (error instanceof UnauthorizedError) {
             return handleRemoteAuthFailure(name, serverRef, 'sse')
           }
         } else if (serverRef.type === 'http' && error instanceof Error) {
-          const errorObj = error as Error & {
-            cause?: unknown
-            code?: string
-            errno?: string | number
-            syscall?: string
-          }
           logMCPDebug(
             name,
-            `HTTP Connection failed after ${elapsed}ms: ${error.message} (code: ${errorObj.code || 'none'}, errno: ${errorObj.errno || 'none'})`,
+            `HTTP connection failed after ${elapsed}ms: ${summarizeMcpErrorForDebug(
+              error,
+            )}`,
+          )
+          logMCPError(
+            name,
+            `HTTP connection failed: ${summarizeMcpErrorForDebug(error)}`,
           )
-          logMCPError(name, error)
 
           if (error instanceof UnauthorizedError) {
             return handleRemoteAuthFailure(name, serverRef, 'http')
@@ -1127,9 +1220,16 @@ export const connectToServer = memoize(
         ) {
           logMCPDebug(
             name,
-            `claude.ai proxy connection failed after ${elapsed}ms: ${error.message}`,
+            `claude.ai proxy connection failed after ${elapsed}ms: ${summarizeMcpErrorForDebug(
+              error,
+            )}`,
+          )
+          logMCPError(
+            name,
+            `claude.ai proxy connection failed: ${summarizeMcpErrorForDebug(
+              error,
+            )}`,
           )
-          logMCPError(name, error)
 
           // StreamableHTTPError has a `code` property with the HTTP status
           const errorCode = (error as Error & { code?: number }).code
@@ -1149,7 +1249,7 @@ export const connectToServer = memoize(
         }
         transport.close().catch(() => {})
         if (stderrOutput) {
-          logMCPError(name, `Server stderr: ${stderrOutput}`)
+          logMCPError(name, summarizeStderrForDebug(stderrOutput))
         }
         throw error
       }
@@ -1208,7 +1308,9 @@ export const connectToServer = memoize(
         } catch (error) {
           logMCPError(
             name,
-            `Failed to send ide_connected notification: ${error}`,
+            `Failed to send ide_connected notification: ${summarizeMcpErrorForDebug(
+              error,
+            )}`,
           )
         }
       }
@@ -1242,7 +1344,10 @@ export const connectToServer = memoize(
         hasTriggeredClose = true
         logMCPDebug(name, `Closing transport (${reason})`)
         void client.close().catch(e => {
-          logMCPDebug(name, `Error during close: ${errorMessage(e)}`)
+          logMCPDebug(
+            name,
+            `Error during close: ${summarizeMcpErrorForDebug(e)}`,
+          )
         })
       }
 
@@ -1306,7 +1411,10 @@ export const connectToServer = memoize(
               `Failed to spawn process - check command and permissions`,
             )
           } else {
-            logMCPDebug(name, `Connection error: ${error.message}`)
+            logMCPDebug(
+              name,
+              `Connection error: ${summarizeMcpErrorForDebug(error)}`,
+            )
           }
         }
 
@@ -1407,12 +1515,20 @@ export const connectToServer = memoize(
           try {
             await inProcessServer.close()
           } catch (error) {
-            logMCPDebug(name, `Error closing in-process server: ${error}`)
+            logMCPDebug(
+              name,
+              `Error closing in-process server: ${summarizeMcpErrorForDebug(
+                error,
+              )}`,
+            )
           }
           try {
             await client.close()
           } catch (error) {
-            logMCPDebug(name, `Error closing client: ${error}`)
+            logMCPDebug(
+              name,
+              `Error closing client: ${summarizeMcpErrorForDebug(error)}`,
+            )
           }
           return
         }
@@ -1438,7 +1554,10 @@ export const connectToServer = memoize(
               try {
                 process.kill(childPid, 'SIGINT')
               } catch (error) {
-                logMCPDebug(name, `Error sending SIGINT: ${error}`)
+                logMCPDebug(
+                  name,
+                  `Error sending SIGINT: ${summarizeMcpErrorForDebug(error)}`,
+                )
                 return
               }
 
@@ -1492,7 +1611,12 @@ export const connectToServer = memoize(
                       try {
                         process.kill(childPid, 'SIGTERM')
                       } catch (termError) {
-                        logMCPDebug(name, `Error sending SIGTERM: ${termError}`)
+                        logMCPDebug(
+                          name,
+                          `Error sending SIGTERM: ${summarizeMcpErrorForDebug(
+                            termError,
+                          )}`,
+                        )
                         resolved = true
                         clearInterval(checkInterval)
                         clearTimeout(failsafeTimeout)
@@ -1525,7 +1649,9 @@ export const connectToServer = memoize(
                         } catch (killError) {
                           logMCPDebug(
                             name,
-                            `Error sending SIGKILL: ${killError}`,
+                            `Error sending SIGKILL: ${summarizeMcpErrorForDebug(
+                              killError,
+                            )}`,
                           )
                         }
                       } catch {
@@ -1557,7 +1683,12 @@ export const connectToServer = memoize(
               })
             }
           } catch (processError) {
-            logMCPDebug(name, `Error terminating process: ${processError}`)
+            logMCPDebug(
+              name,
+              `Error terminating process: ${summarizeMcpErrorForDebug(
+                processError,
+              )}`,
+            )
           }
         }
 
@@ -1565,7 +1696,10 @@ export const connectToServer = memoize(
         try {
           await client.close()
         } catch (error) {
-          logMCPDebug(name, `Error closing client: ${error}`)
+          logMCPDebug(
+            name,
+            `Error closing client: ${summarizeMcpErrorForDebug(error)}`,
+          )
         }
       }
 
@@ -1622,9 +1756,14 @@ export const connectToServer = memoize(
       })
       logMCPDebug(
         name,
-        `Connection failed after ${connectionDurationMs}ms: ${errorMessage(error)}`,
+        `Connection failed after ${connectionDurationMs}ms: ${summarizeMcpErrorForDebug(
+          error,
+        )}`,
+      )
+      logMCPError(
+        name,
+        `Connection failed: ${summarizeMcpErrorForDebug(error)}`,
       )
-      logMCPError(name, `Connection failed: ${errorMessage(error)}`)
 
       if (inProcessServer) {
         inProcessServer.close().catch(() => {})
@@ -1989,7 +2128,10 @@ export const fetchToolsForClient = memoizeWithLRU(
         })
         .filter(isIncludedMcpTool)
     } catch (error) {
-      logMCPError(client.name, `Failed to fetch tools: ${errorMessage(error)}`)
+      logMCPError(
+        client.name,
+        `Failed to fetch tools: ${summarizeMcpErrorForDebug(error)}`,
+      )
       return []
     }
   },
@@ -2021,7 +2163,7 @@ export const fetchResourcesForClient = memoizeWithLRU(
     } catch (error) {
       logMCPError(
         client.name,
-        `Failed to fetch resources: ${errorMessage(error)}`,
+        `Failed to fetch resources: ${summarizeMcpErrorForDebug(error)}`,
       )
       return []
     }
@@ -2087,7 +2229,9 @@ export const fetchCommandsForClient = memoizeWithLRU(
             } catch (error) {
               logMCPError(
                 client.name,
-                `Error running command '${prompt.name}': ${errorMessage(error)}`,
+                `Error running command '${prompt.name}': ${summarizeMcpErrorForDebug(
+                  error,
+                )}`,
               )
               throw error
             }
@@ -2097,7 +2241,7 @@ export const fetchCommandsForClient = memoizeWithLRU(
     } catch (error) {
       logMCPError(
         client.name,
-        `Failed to fetch commands: ${errorMessage(error)}`,
+        `Failed to fetch commands: ${summarizeMcpErrorForDebug(error)}`,
       )
       return []
     }
@@ -2198,7 +2342,10 @@ export async function reconnectMcpServerImpl(
     }
   } catch (error) {
     // Handle errors gracefully - connection might have closed during fetch
-    logMCPError(name, `Error during reconnection: ${errorMessage(error)}`)
+    logMCPError(
+      name,
+      `Error during reconnection: ${summarizeMcpErrorForDebug(error)}`,
+    )
 
     // Return with failed status
     return {
@@ -2373,7 +2520,9 @@ export async function getMcpToolsCommandsAndResources(
       // Handle errors gracefully - connection might have closed during fetch
       logMCPError(
         name,
-        `Error fetching tools/commands/resources: ${errorMessage(error)}`,
+        `Error fetching tools/commands/resources: ${summarizeMcpErrorForDebug(
+          error,
+        )}`,
       )
 
       // Still update with the client but no tools/commands
@@ -2460,7 +2609,7 @@ export function prefetchAllMcpResources(
     }, mcpConfigs).catch(error => {
       logMCPError(
         'prefetchAllMcpResources',
-        `Failed to get MCP resources: ${errorMessage(error)}`,
+        `Failed to get MCP resources: ${summarizeMcpErrorForDebug(error)}`,
       )
       // Still resolve with empty results
       void resolve({
@@ -3322,7 +3471,12 @@ export async function setupSdkMcpClients(
         }
       } catch (error) {
         // If connection fails, return failed server
-        logMCPError(name, `Failed to connect SDK MCP server: ${error}`)
+        logMCPError(
+          name,
+          `Failed to connect SDK MCP server: ${summarizeMcpErrorForDebug(
+            error,
+          )}`,
+        )
         return {
           client: {
             type: 'failed' as const,

src/services/mcp/config.ts

@@ -1397,6 +1397,7 @@ export function parseMcpConfigFromFilePath(params: {
     configContent = fs.readFileSync(filePath, { encoding: 'utf8' })
   } catch (error: unknown) {
     const code = getErrnoCode(error)
+    const fileName = parse(filePath).base
     if (code === 'ENOENT') {
       return {
         config: null,
@@ -1415,7 +1416,7 @@ export function parseMcpConfigFromFilePath(params: {
       }
     }
     logForDebugging(
-      `MCP config read error for ${filePath} (scope=${scope}): ${error}`,
+      `MCP config read error (scope=${scope}, file=${fileName}, errno=${code ?? 'none'}, errorType=${error instanceof Error ? error.name : typeof error})`,
       { level: 'error' },
     )
     return {
@@ -1439,7 +1440,7 @@ export function parseMcpConfigFromFilePath(params: {
 
   if (!parsedJson) {
     logForDebugging(
-      `MCP config is not valid JSON: ${filePath} (scope=${scope}, length=${configContent.length}, first100=${jsonStringify(configContent.slice(0, 100))})`,
+      `MCP config is not valid JSON (scope=${scope}, file=${parse(filePath).base}, length=${configContent.length})`,
       { level: 'error' },
     )
     return {

src/services/mcp/xaa.ts

@@ -96,6 +96,24 @@ function redactTokens(raw: unknown): string {
   return s.replace(SENSITIVE_TOKEN_RE, (_, k) => `"${k}":"[REDACTED]"`)
 }
 
+function summarizeXaaPayload(raw: unknown): string {
+  if (typeof raw === 'string') {
+    return `text(${raw.length} chars)`
+  }
+  if (Array.isArray(raw)) {
+    return `array(${raw.length})`
+  }
+  if (raw && typeof raw === 'object') {
+    return jsonStringify({
+      payloadType: 'object',
+      keys: Object.keys(raw as Record<string, unknown>)
+        .sort()
+        .slice(0, 10),
+    })
+  }
+  return typeof raw
+}
+
 // ─── Zod Schemas ────────────────────────────────────────────────────────────
 
 const TokenExchangeResponseSchema = lazySchema(() =>
@@ -145,7 +163,7 @@ export async function discoverProtectedResource(
     )
   } catch (e) {
     throw new Error(
-      `XAA: PRM discovery failed: ${e instanceof Error ? e.message : String(e)}`,
+      `XAA: PRM discovery failed (${e instanceof Error ? e.name : typeof e})`,
     )
   }
   if (!prm.resource || !prm.authorization_servers?.[0]) {
@@ -154,9 +172,7 @@ export async function discoverProtectedResource(
     )
   }
   if (normalizeUrl(prm.resource) !== normalizeUrl(serverUrl)) {
-    throw new Error(
-      `XAA: PRM discovery failed: PRM resource mismatch: expected ${serverUrl}, got ${prm.resource}`,
-    )
+    throw new Error('XAA: PRM discovery failed: PRM resource mismatch')
   }
   return {
     resource: prm.resource,
@@ -183,22 +199,16 @@ export async function discoverAuthorizationServer(
     fetchFn: opts?.fetchFn ?? defaultFetch,
   })
   if (!meta?.issuer || !meta.token_endpoint) {
-    throw new Error(
-      `XAA: AS metadata discovery failed: no valid metadata at ${asUrl}`,
-    )
+    throw new Error('XAA: AS metadata discovery failed: no valid metadata')
   }
   if (normalizeUrl(meta.issuer) !== normalizeUrl(asUrl)) {
-    throw new Error(
-      `XAA: AS metadata discovery failed: issuer mismatch: expected ${asUrl}, got ${meta.issuer}`,
-    )
+    throw new Error('XAA: AS metadata discovery failed: issuer mismatch')
   }
   // RFC 8414 §3.3 / RFC 9728 §3 require HTTPS. A PRM-advertised http:// AS
   // that self-consistently reports an http:// issuer would pass the mismatch
   // check above, then we'd POST id_token + client_secret over plaintext.
   if (new URL(meta.token_endpoint).protocol !== 'https:') {
-    throw new Error(
-      `XAA: refusing non-HTTPS token endpoint: ${meta.token_endpoint}`,
-    )
+    throw new Error('XAA: refusing non-HTTPS token endpoint')
   }
   return {
     issuer: meta.issuer,
@@ -263,7 +273,7 @@ export async function requestJwtAuthorizationGrant(opts: {
     body: params,
   })
   if (!res.ok) {
-    const body = redactTokens(await res.text()).slice(0, 200)
+    const body = summarizeXaaPayload(redactTokens(await res.text()))
     // 4xx → id_token rejected (invalid_grant etc.), clear cache.
     // 5xx → IdP outage, id_token may still be valid, preserve it.
     const shouldClear = res.status < 500
@@ -278,21 +288,25 @@ export async function requestJwtAuthorizationGrant(opts: {
   } catch {
     // Transient network condition (captive portal, proxy) — don't clear id_token.
     throw new XaaTokenExchangeError(
-      `XAA: token exchange returned non-JSON (captive portal?) at ${opts.tokenEndpoint}`,
+      'XAA: token exchange returned non-JSON response (captive portal?)',
       false,
     )
   }
   const exchangeParsed = TokenExchangeResponseSchema().safeParse(rawExchange)
   if (!exchangeParsed.success) {
     throw new XaaTokenExchangeError(
-      `XAA: token exchange response did not match expected shape: ${redactTokens(rawExchange)}`,
+      `XAA: token exchange response did not match expected shape: ${summarizeXaaPayload(
+        redactTokens(rawExchange),
+      )}`,
       true,
     )
   }
   const result = exchangeParsed.data
   if (!result.access_token) {
     throw new XaaTokenExchangeError(
-      `XAA: token exchange response missing access_token: ${redactTokens(result)}`,
+      `XAA: token exchange response missing access_token: ${summarizeXaaPayload(
+        redactTokens(result),
+      )}`,
       true,
     )
   }
@@ -373,7 +387,7 @@ export async function exchangeJwtAuthGrant(opts: {
     body: params,
   })
   if (!res.ok) {
-    const body = redactTokens(await res.text()).slice(0, 200)
+    const body = summarizeXaaPayload(redactTokens(await res.text()))
     throw new Error(`XAA: jwt-bearer grant failed: HTTP ${res.status}: ${body}`)
   }
   let rawTokens: unknown
@@ -381,13 +395,15 @@ export async function exchangeJwtAuthGrant(opts: {
     rawTokens = await res.json()
   } catch {
     throw new Error(
-      `XAA: jwt-bearer grant returned non-JSON (captive portal?) at ${opts.tokenEndpoint}`,
+      'XAA: jwt-bearer grant returned non-JSON response (captive portal?)',
     )
   }
   const tokensParsed = JwtBearerResponseSchema().safeParse(rawTokens)
   if (!tokensParsed.success) {
     throw new Error(
-      `XAA: jwt-bearer response did not match expected shape: ${redactTokens(rawTokens)}`,
+      `XAA: jwt-bearer response did not match expected shape: ${summarizeXaaPayload(
+        redactTokens(rawTokens),
+      )}`,
     )
   }
   return tokensParsed.data
@@ -431,11 +447,14 @@ export async function performCrossAppAccess(
 ): Promise<XaaResult> {
   const fetchFn = makeXaaFetch(abortSignal)
 
-  logMCPDebug(serverName, `XAA: discovering PRM for ${serverUrl}`)
+  logMCPDebug(serverName, 'XAA: discovering protected resource metadata')
   const prm = await discoverProtectedResource(serverUrl, { fetchFn })
   logMCPDebug(
     serverName,
-    `XAA: discovered resource=${prm.resource} ASes=[${prm.authorization_servers.join(', ')}]`,
+    `XAA: discovered protected resource metadata ${jsonStringify({
+      hasResource: Boolean(prm.resource),
+      authorizationServerCount: prm.authorization_servers.length,
+    })}`,
   )
 
   // Try each advertised AS in order. grant_types_supported is OPTIONAL per
@@ -449,16 +468,16 @@ export async function performCrossAppAccess(
       candidate = await discoverAuthorizationServer(asUrl, { fetchFn })
     } catch (e) {
       if (abortSignal?.aborted) throw e
-      asErrors.push(`${asUrl}: ${e instanceof Error ? e.message : String(e)}`)
+      asErrors.push(
+        `authorization server discovery failed (${e instanceof Error ? e.name : typeof e})`,
+      )
       continue
     }
     if (
       candidate.grant_types_supported &&
       !candidate.grant_types_supported.includes(JWT_BEARER_GRANT)
     ) {
-      asErrors.push(
-        `${asUrl}: does not advertise jwt-bearer grant (supported: ${candidate.grant_types_supported.join(', ')})`,
-      )
+      asErrors.push('authorization server does not advertise jwt-bearer grant')
       continue
     }
     asMeta = candidate
@@ -466,7 +485,7 @@ export async function performCrossAppAccess(
   }
   if (!asMeta) {
     throw new Error(
-      `XAA: no authorization server supports jwt-bearer. Tried: ${asErrors.join('; ')}`,
+      `XAA: no authorization server supports jwt-bearer (${asErrors.length} candidates tried)`,
     )
   }
   // Pick auth method from what the AS advertises. We handle
@@ -481,7 +500,7 @@ export async function performCrossAppAccess(
       : 'client_secret_basic'
   logMCPDebug(
     serverName,
-    `XAA: AS issuer=${asMeta.issuer} token_endpoint=${asMeta.token_endpoint} auth_method=${authMethod}`,
+    `XAA: selected authorization server (auth_method=${authMethod})`,
   )
 
   logMCPDebug(serverName, `XAA: exchanging id_token for ID-JAG at IdP`)

src/services/mcp/xaaIdpLogin.ts

@@ -210,9 +210,7 @@ export async function discoverOidc(
     signal: AbortSignal.timeout(IDP_REQUEST_TIMEOUT_MS),
   })
   if (!res.ok) {
-    throw new Error(
-      `XAA IdP: OIDC discovery failed: HTTP ${res.status} at ${url}`,
-    )
+    throw new Error(`XAA IdP: OIDC discovery failed (HTTP ${res.status})`)
   }
   // Captive portals and proxy auth pages return 200 with HTML. res.json()
   // throws a raw SyntaxError before safeParse can give a useful message.
@@ -221,17 +219,15 @@ export async function discoverOidc(
     body = await res.json()
   } catch {
     throw new Error(
-      `XAA IdP: OIDC discovery returned non-JSON at ${url} (captive portal or proxy?)`,
+      'XAA IdP: OIDC discovery returned non-JSON response (captive portal or proxy?)',
     )
   }
   const parsed = OpenIdProviderDiscoveryMetadataSchema.safeParse(body)
   if (!parsed.success) {
-    throw new Error(`XAA IdP: invalid OIDC metadata: ${parsed.error.message}`)
+    throw new Error('XAA IdP: invalid OIDC metadata')
   }
   if (new URL(parsed.data.token_endpoint).protocol !== 'https:') {
-    throw new Error(
-      `XAA IdP: refusing non-HTTPS token endpoint: ${parsed.data.token_endpoint}`,
-    )
+    throw new Error('XAA IdP: refusing non-HTTPS token endpoint')
   }
   return parsed.data
 }
@@ -373,7 +369,7 @@ function waitForCallback(
           ),
         )
       } else {
-        rejectOnce(new Error(`XAA IdP: callback server failed: ${err.message}`))
+        rejectOnce(new Error('XAA IdP: callback server failed'))
       }
     })
 
@@ -405,11 +401,11 @@ export async function acquireIdpIdToken(
 
   const cached = getCachedIdpIdToken(idpIssuer)
   if (cached) {
-    logMCPDebug('xaa', `Using cached id_token for ${idpIssuer}`)
+    logMCPDebug('xaa', 'Using cached id_token for configured IdP')
     return cached
   }
 
-  logMCPDebug('xaa', `No cached id_token for ${idpIssuer}; starting OIDC login`)
+  logMCPDebug('xaa', 'No cached id_token for configured IdP; starting OIDC login')
 
   const metadata = await discoverOidc(idpIssuer)
   const port = opts.callbackPort ?? (await findAvailablePort())
@@ -478,10 +474,7 @@ export async function acquireIdpIdToken(
     : Date.now() + (tokens.expires_in ?? 3600) * 1000
 
   saveIdpIdToken(idpIssuer, tokens.id_token, expiresAt)
-  logMCPDebug(
-    'xaa',
-    `Cached id_token for ${idpIssuer} (expires ${new Date(expiresAt).toISOString()})`,
-  )
+  logMCPDebug('xaa', 'Cached id_token for configured IdP')
 
   return tokens.id_token
 }

src/services/tools/toolExecution.ts

@@ -11,7 +11,6 @@ import {
 import {
   extractMcpToolDetails,
   extractSkillName,
-  extractToolInputForTelemetry,
   getFileExtensionForAnalytics,
   getFileExtensionsFromBashCommand,
   isToolDetailsLoggingEnabled,
@@ -87,17 +86,6 @@ import {
 } from '../../utils/sessionActivity.js'
 import { jsonStringify } from '../../utils/slowOperations.js'
 import { Stream } from '../../utils/stream.js'
-import { logOTelEvent } from '../../utils/telemetry/events.js'
-import {
-  addToolContentEvent,
-  endToolBlockedOnUserSpan,
-  endToolExecutionSpan,
-  endToolSpan,
-  isBetaTracingEnabled,
-  startToolBlockedOnUserSpan,
-  startToolExecutionSpan,
-  startToolSpan,
-} from '../../utils/telemetry/sessionTracing.js'
 import {
   formatError,
   formatZodValidationError,
@@ -204,7 +192,7 @@ function ruleSourceToOTelSource(
  * Without it, we fall back conservatively: allow → user_temporary,
  * deny → user_reject.
  */
-function decisionReasonToOTelSource(
+function decisionReasonToSource(
   reason: PermissionDecisionReason | undefined,
   behavior: 'allow' | 'deny',
 ): string {
@@ -890,29 +878,6 @@ async function checkPermissionsAndCallTool(
     }
   }
 
-  const toolAttributes: Record<string, string | number | boolean> = {}
-  if (processedInput && typeof processedInput === 'object') {
-    if (tool.name === FILE_READ_TOOL_NAME && 'file_path' in processedInput) {
-      toolAttributes.file_path = String(processedInput.file_path)
-    } else if (
-      (tool.name === FILE_EDIT_TOOL_NAME ||
-        tool.name === FILE_WRITE_TOOL_NAME) &&
-      'file_path' in processedInput
-    ) {
-      toolAttributes.file_path = String(processedInput.file_path)
-    } else if (tool.name === BASH_TOOL_NAME && 'command' in processedInput) {
-      const bashInput = processedInput as BashToolInput
-      toolAttributes.full_command = bashInput.command
-    }
-  }
-
-  startToolSpan(
-    tool.name,
-    toolAttributes,
-    isBetaTracingEnabled() ? jsonStringify(processedInput) : undefined,
-  )
-  startToolBlockedOnUserSpan()
-
   // Check whether we have permission to use the tool,
   // and ask the user for permission if we don't
   const permissionMode = toolUseContext.getAppState().toolPermissionContext.mode
@@ -945,33 +910,22 @@ async function checkPermissionsAndCallTool(
     )
   }
 
-  // Emit tool_decision OTel event and code-edit counter if the interactive
-  // permission path didn't already log it (headless mode bypasses permission
-  // logging, so we need to emit both the generic event and the code-edit
-  // counter here)
+  // Increment the code-edit counter here when the interactive permission path
+  // did not already log a decision (headless mode bypasses permission logging).
   if (
     permissionDecision.behavior !== 'ask' &&
     !toolUseContext.toolDecisions?.has(toolUseID)
   ) {
-    const decision =
-      permissionDecision.behavior === 'allow' ? 'accept' : 'reject'
-    const source = decisionReasonToOTelSource(
-      permissionDecision.decisionReason,
-      permissionDecision.behavior,
-    )
-    void logOTelEvent('tool_decision', {
-      decision,
-      source,
-      tool_name: sanitizeToolNameForAnalytics(tool.name),
-    })
-
     // Increment code-edit tool decision counter for headless mode
     if (isCodeEditingTool(tool.name)) {
       void buildCodeEditToolAttributes(
         tool,
         processedInput,
         decision,
-        source,
+        decisionReasonToSource(
+          permissionDecision.decisionReason,
+          permissionDecision.behavior,
+        ),
       ).then(attributes => getCodeEditToolDecisionCounter()?.add(1, attributes))
     }
   }
@@ -994,10 +948,6 @@ async function checkPermissionsAndCallTool(
 
   if (permissionDecision.behavior !== 'allow') {
     logForDebugging(`${tool.name} tool permission denied`)
-    const decisionInfo = toolUseContext.toolDecisions?.get(toolUseID)
-    endToolBlockedOnUserSpan('reject', decisionInfo?.source || 'unknown')
-    endToolSpan()
-
     logEvent('tengu_tool_use_can_use_tool_rejected', {
       messageID:
         messageId as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
@@ -1131,10 +1081,6 @@ async function checkPermissionsAndCallTool(
     processedInput = permissionDecision.updatedInput
   }
 
-  // Prepare tool parameters for logging in tool_result event.
-  // Gated by OTEL_LOG_TOOL_DETAILS — tool parameters can contain sensitive
-  // content (bash commands, MCP server names, etc.) so they're opt-in only.
-  const telemetryToolInput = extractToolInputForTelemetry(processedInput)
   let toolParameters: Record<string, unknown> = {}
   if (isToolDetailsLoggingEnabled()) {
     if (tool.name === BASH_TOOL_NAME && 'command' in processedInput) {
@@ -1168,13 +1114,6 @@ async function checkPermissionsAndCallTool(
     }
   }
 
-  const decisionInfo = toolUseContext.toolDecisions?.get(toolUseID)
-  endToolBlockedOnUserSpan(
-    decisionInfo?.decision || 'unknown',
-    decisionInfo?.source || 'unknown',
-  )
-  startToolExecutionSpan()
-
   const startTime = Date.now()
 
   startSessionActivity('tool_exec')
@@ -1223,51 +1162,6 @@ async function checkPermissionsAndCallTool(
     const durationMs = Date.now() - startTime
     addToToolDuration(durationMs)
 
-    // Log tool content/output as span event if enabled
-    if (result.data && typeof result.data === 'object') {
-      const contentAttributes: Record<string, string | number | boolean> = {}
-
-      // Read tool: capture file_path and content
-      if (tool.name === FILE_READ_TOOL_NAME && 'content' in result.data) {
-        if ('file_path' in processedInput) {
-          contentAttributes.file_path = String(processedInput.file_path)
-        }
-        contentAttributes.content = String(result.data.content)
-      }
-
-      // Edit/Write tools: capture file_path and diff
-      if (
-        (tool.name === FILE_EDIT_TOOL_NAME ||
-          tool.name === FILE_WRITE_TOOL_NAME) &&
-        'file_path' in processedInput
-      ) {
-        contentAttributes.file_path = String(processedInput.file_path)
-
-        // For Edit, capture the actual changes made
-        if (tool.name === FILE_EDIT_TOOL_NAME && 'diff' in result.data) {
-          contentAttributes.diff = String(result.data.diff)
-        }
-        // For Write, capture the written content
-        if (tool.name === FILE_WRITE_TOOL_NAME && 'content' in processedInput) {
-          contentAttributes.content = String(processedInput.content)
-        }
-      }
-
-      // Bash tool: capture command
-      if (tool.name === BASH_TOOL_NAME && 'command' in processedInput) {
-        const bashInput = processedInput as BashToolInput
-        contentAttributes.bash_command = bashInput.command
-        // Also capture output if available
-        if ('output' in result.data) {
-          contentAttributes.output = String(result.data.output)
-        }
-      }
-
-      if (Object.keys(contentAttributes).length > 0) {
-        addToolContentEvent('tool.output', contentAttributes)
-      }
-    }
-
     // Capture structured output from tool result if present
     if (typeof result === 'object' && 'structured_output' in result) {
       // Store the structured output in an attachment message
@@ -1279,14 +1173,6 @@ async function checkPermissionsAndCallTool(
       })
     }
 
-    endToolExecutionSpan({ success: true })
-    // Pass tool result for new_context logging
-    const toolResultStr =
-      result.data && typeof result.data === 'object'
-        ? jsonStringify(result.data)
-        : String(result.data ?? '')
-    endToolSpan(toolResultStr)
-
     // Map the tool result to API format once and cache it. This block is reused
     // by addToolResult (skipping the remap) and measured here for analytics.
     const mappedToolResultBlock = tool.mapToolResultToToolResultBlockParam(
@@ -1373,27 +1259,10 @@ async function checkPermissionsAndCallTool(
       }
     }
 
-    // Log tool result event for OTLP with tool parameters and decision context
     const mcpServerScope = isMcpTool(tool)
       ? getMcpServerScopeFromToolName(tool.name)
       : null
 
-    void logOTelEvent('tool_result', {
-      tool_name: sanitizeToolNameForAnalytics(tool.name),
-      success: 'true',
-      duration_ms: String(durationMs),
-      ...(Object.keys(toolParameters).length > 0 && {
-        tool_parameters: jsonStringify(toolParameters),
-      }),
-      ...(telemetryToolInput && { tool_input: telemetryToolInput }),
-      tool_result_size_bytes: String(toolResultSizeBytes),
-      ...(decisionInfo && {
-        decision_source: decisionInfo.source,
-        decision_type: decisionInfo.decision,
-      }),
-      ...(mcpServerScope && { mcp_server_scope: mcpServerScope }),
-    })
-
     // Run PostToolUse hooks
     let toolOutput = result.data
     const hookResults = []
@@ -1590,12 +1459,6 @@ async function checkPermissionsAndCallTool(
     const durationMs = Date.now() - startTime
     addToToolDuration(durationMs)
 
-    endToolExecutionSpan({
-      success: false,
-      error: errorMessage(error),
-    })
-    endToolSpan()
-
     // Handle MCP auth errors by updating the client status to 'needs-auth'
     // This updates the /mcp display to show the server needs re-authorization
     if (error instanceof McpAuthError) {
@@ -1666,27 +1529,9 @@ async function checkPermissionsAndCallTool(
           mcpServerBaseUrl,
         ),
       })
-      // Log tool result error event for OTLP with tool parameters and decision context
       const mcpServerScope = isMcpTool(tool)
         ? getMcpServerScopeFromToolName(tool.name)
         : null
-
-      void logOTelEvent('tool_result', {
-        tool_name: sanitizeToolNameForAnalytics(tool.name),
-        use_id: toolUseID,
-        success: 'false',
-        duration_ms: String(durationMs),
-        error: errorMessage(error),
-        ...(Object.keys(toolParameters).length > 0 && {
-          tool_parameters: jsonStringify(toolParameters),
-        }),
-        ...(telemetryToolInput && { tool_input: telemetryToolInput }),
-        ...(decisionInfo && {
-          decision_source: decisionInfo.source,
-          decision_type: decisionInfo.decision,
-        }),
-        ...(mcpServerScope && { mcp_server_scope: mcpServerScope }),
-      })
     }
     const content = formatError(error)
 

src/services/voiceStreamSTT.ts

@@ -174,7 +174,7 @@ export async function connectVoiceStream(
 
   const url = `${wsBaseUrl}${VOICE_STREAM_PATH}?${params.toString()}`
 
-  logForDebugging(`[voice_stream] Connecting to ${url}`)
+  logForDebugging('[voice_stream] Connecting to voice stream websocket')
 
   const headers: Record<string, string> = {
     Authorization: `Bearer ${tokens.accessToken}`,
@@ -357,7 +357,7 @@ export async function connectVoiceStream(
   ws.on('message', (raw: Buffer | string) => {
     const text = raw.toString()
     logForDebugging(
-      `[voice_stream] Message received (${String(text.length)} chars): ${text.slice(0, 200)}`,
+      `[voice_stream] Message received (${String(text.length)} chars)`,
     )
     let msg: VoiceStreamMessage
     try {
@@ -369,7 +369,9 @@ export async function connectVoiceStream(
     switch (msg.type) {
       case 'TranscriptText': {
         const transcript = msg.data
-        logForDebugging(`[voice_stream] TranscriptText: "${transcript ?? ''}"`)
+        logForDebugging(
+          `[voice_stream] TranscriptText received (${String((transcript ?? '').length)} chars)`,
+        )
         // Data arrived after CloseStream — disarm the no-data timer so
         // a slow-but-real flush isn't cut off. Only disarm once finalized
         // (CloseStream sent); pre-CloseStream data racing the deferred
@@ -403,7 +405,7 @@ export async function connectVoiceStream(
               !prev.startsWith(next)
             ) {
               logForDebugging(
-                `[voice_stream] Auto-finalizing previous segment (new segment detected): "${lastTranscriptText}"`,
+                '[voice_stream] Auto-finalizing previous segment (new segment detected)',
               )
               callbacks.onTranscript(lastTranscriptText, true)
             }
@@ -416,7 +418,7 @@ export async function connectVoiceStream(
       }
       case 'TranscriptEndpoint': {
         logForDebugging(
-          `[voice_stream] TranscriptEndpoint received, lastTranscriptText="${lastTranscriptText}"`,
+          `[voice_stream] TranscriptEndpoint received (hasBufferedTranscript=${Boolean(lastTranscriptText)})`,
         )
         // The server signals the end of an utterance.  Emit the last
         // TranscriptText as a final transcript so the caller can commit it.
@@ -441,7 +443,9 @@ export async function connectVoiceStream(
       case 'TranscriptError': {
         const desc =
           msg.description ?? msg.error_code ?? 'unknown transcription error'
-        logForDebugging(`[voice_stream] TranscriptError: ${desc}`)
+        logForDebugging(
+          `[voice_stream] TranscriptError received (${msg.error_code ?? 'unknown'})`,
+        )
         if (!finalizing) {
           callbacks.onError(desc)
         }
@@ -449,7 +453,7 @@ export async function connectVoiceStream(
       }
       case 'error': {
         const errorDetail = msg.message ?? jsonStringify(msg)
-        logForDebugging(`[voice_stream] Server error: ${errorDetail}`)
+        logForDebugging('[voice_stream] Server error received')
         if (!finalizing) {
           callbacks.onError(errorDetail)
         }

src/setup.ts

@@ -368,13 +368,10 @@ export async function setup(
       ) // Start team memory sync watcher
     }
   }
-  initSinks() // Attach error log + analytics sinks and drain queued events
+  initSinks() // Attach the shared error-log sink
 
-  // Session-success-rate denominator. Emit immediately after the analytics
-  // sink is attached — before any parsing, fetching, or I/O that could throw.
-  // inc-3694 (P0 CHANGELOG crash) threw at checkForReleaseNotes below; every
-  // event after this point was dead. This beacon is the earliest reliable
-  // "process started" signal for release health monitoring.
+  // Keep the startup compatibility event as early as possible, before any
+  // parsing, fetching, or I/O that could throw.
   logEvent('tengu_started', {})
 
   void prefetchApiKeyFromApiKeyHelperIfSafe(getIsNonInteractiveSession()) // Prefetch safely - only executes if trust already confirmed

src/tools/AgentTool/agentMemorySnapshot.ts

@@ -1,197 +0,0 @@
-import { mkdir, readdir, readFile, unlink, writeFile } from 'fs/promises'
-import { join } from 'path'
-import { z } from 'zod/v4'
-import { getCwd } from '../../utils/cwd.js'
-import { logForDebugging } from '../../utils/debug.js'
-import { lazySchema } from '../../utils/lazySchema.js'
-import { jsonParse, jsonStringify } from '../../utils/slowOperations.js'
-import { type AgentMemoryScope, getAgentMemoryDir } from './agentMemory.js'
-
-const SNAPSHOT_BASE = 'agent-memory-snapshots'
-const SNAPSHOT_JSON = 'snapshot.json'
-const SYNCED_JSON = '.snapshot-synced.json'
-
-const snapshotMetaSchema = lazySchema(() =>
-  z.object({
-    updatedAt: z.string().min(1),
-  }),
-)
-
-const syncedMetaSchema = lazySchema(() =>
-  z.object({
-    syncedFrom: z.string().min(1),
-  }),
-)
-type SyncedMeta = z.infer<ReturnType<typeof syncedMetaSchema>>
-
-/**
- * Returns the path to the snapshot directory for an agent in the current project.
- * e.g., <cwd>/.claude/agent-memory-snapshots/<agentType>/
- */
-export function getSnapshotDirForAgent(agentType: string): string {
-  return join(getCwd(), '.claude', SNAPSHOT_BASE, agentType)
-}
-
-function getSnapshotJsonPath(agentType: string): string {
-  return join(getSnapshotDirForAgent(agentType), SNAPSHOT_JSON)
-}
-
-function getSyncedJsonPath(agentType: string, scope: AgentMemoryScope): string {
-  return join(getAgentMemoryDir(agentType, scope), SYNCED_JSON)
-}
-
-async function readJsonFile<T>(
-  path: string,
-  schema: z.ZodType<T>,
-): Promise<T | null> {
-  try {
-    const content = await readFile(path, { encoding: 'utf-8' })
-    const result = schema.safeParse(jsonParse(content))
-    return result.success ? result.data : null
-  } catch {
-    return null
-  }
-}
-
-async function copySnapshotToLocal(
-  agentType: string,
-  scope: AgentMemoryScope,
-): Promise<void> {
-  const snapshotMemDir = getSnapshotDirForAgent(agentType)
-  const localMemDir = getAgentMemoryDir(agentType, scope)
-
-  await mkdir(localMemDir, { recursive: true })
-
-  try {
-    const files = await readdir(snapshotMemDir, { withFileTypes: true })
-    for (const dirent of files) {
-      if (!dirent.isFile() || dirent.name === SNAPSHOT_JSON) continue
-      const content = await readFile(join(snapshotMemDir, dirent.name), {
-        encoding: 'utf-8',
-      })
-      await writeFile(join(localMemDir, dirent.name), content)
-    }
-  } catch (e) {
-    logForDebugging(`Failed to copy snapshot to local agent memory: ${e}`)
-  }
-}
-
-async function saveSyncedMeta(
-  agentType: string,
-  scope: AgentMemoryScope,
-  snapshotTimestamp: string,
-): Promise<void> {
-  const syncedPath = getSyncedJsonPath(agentType, scope)
-  const localMemDir = getAgentMemoryDir(agentType, scope)
-  await mkdir(localMemDir, { recursive: true })
-  const meta: SyncedMeta = { syncedFrom: snapshotTimestamp }
-  try {
-    await writeFile(syncedPath, jsonStringify(meta))
-  } catch (e) {
-    logForDebugging(`Failed to save snapshot sync metadata: ${e}`)
-  }
-}
-
-/**
- * Check if a snapshot exists and whether it's newer than what we last synced.
- */
-export async function checkAgentMemorySnapshot(
-  agentType: string,
-  scope: AgentMemoryScope,
-): Promise<{
-  action: 'none' | 'initialize' | 'prompt-update'
-  snapshotTimestamp?: string
-}> {
-  const snapshotMeta = await readJsonFile(
-    getSnapshotJsonPath(agentType),
-    snapshotMetaSchema(),
-  )
-
-  if (!snapshotMeta) {
-    return { action: 'none' }
-  }
-
-  const localMemDir = getAgentMemoryDir(agentType, scope)
-
-  let hasLocalMemory = false
-  try {
-    const dirents = await readdir(localMemDir, { withFileTypes: true })
-    hasLocalMemory = dirents.some(d => d.isFile() && d.name.endsWith('.md'))
-  } catch {
-    // Directory doesn't exist
-  }
-
-  if (!hasLocalMemory) {
-    return { action: 'initialize', snapshotTimestamp: snapshotMeta.updatedAt }
-  }
-
-  const syncedMeta = await readJsonFile(
-    getSyncedJsonPath(agentType, scope),
-    syncedMetaSchema(),
-  )
-
-  if (
-    !syncedMeta ||
-    new Date(snapshotMeta.updatedAt) > new Date(syncedMeta.syncedFrom)
-  ) {
-    return {
-      action: 'prompt-update',
-      snapshotTimestamp: snapshotMeta.updatedAt,
-    }
-  }
-
-  return { action: 'none' }
-}
-
-/**
- * Initialize local agent memory from a snapshot (first-time setup).
- */
-export async function initializeFromSnapshot(
-  agentType: string,
-  scope: AgentMemoryScope,
-  snapshotTimestamp: string,
-): Promise<void> {
-  logForDebugging(
-    `Initializing agent memory for ${agentType} from project snapshot`,
-  )
-  await copySnapshotToLocal(agentType, scope)
-  await saveSyncedMeta(agentType, scope, snapshotTimestamp)
-}
-
-/**
- * Replace local agent memory with the snapshot.
- */
-export async function replaceFromSnapshot(
-  agentType: string,
-  scope: AgentMemoryScope,
-  snapshotTimestamp: string,
-): Promise<void> {
-  logForDebugging(
-    `Replacing agent memory for ${agentType} with project snapshot`,
-  )
-  // Remove existing .md files before copying to avoid orphans
-  const localMemDir = getAgentMemoryDir(agentType, scope)
-  try {
-    const existing = await readdir(localMemDir, { withFileTypes: true })
-    for (const dirent of existing) {
-      if (dirent.isFile() && dirent.name.endsWith('.md')) {
-        await unlink(join(localMemDir, dirent.name))
-      }
-    }
-  } catch {
-    // Directory may not exist yet
-  }
-  await copySnapshotToLocal(agentType, scope)
-  await saveSyncedMeta(agentType, scope, snapshotTimestamp)
-}
-
-/**
- * Mark the current snapshot as synced without changing local memory.
- */
-export async function markSnapshotSynced(
-  agentType: string,
-  scope: AgentMemoryScope,
-  snapshotTimestamp: string,
-): Promise<void> {
-  await saveSyncedMeta(agentType, scope, snapshotTimestamp)
-}

src/tools/AgentTool/loadAgentsDir.ts

@@ -47,10 +47,6 @@ import {
   setAgentColor,
 } from './agentColorManager.js'
 import { type AgentMemoryScope, loadAgentMemoryPrompt } from './agentMemory.js'
-import {
-  checkAgentMemorySnapshot,
-  initializeFromSnapshot,
-} from './agentMemorySnapshot.js'
 import { getBuiltInAgents } from './builtInAgents.js'
 
 // Type for MCP server specification in agent definitions
@@ -255,41 +251,14 @@ export function filterAgentsByMcpRequirements(
 }
 
 /**
- * Check for and initialize agent memory from project snapshots.
- * For agents with memory enabled, copies snapshot to local if no local memory exists.
- * For agents with newer snapshots, logs a debug message (user prompt TODO).
+ * Agent memory snapshot sync is disabled in this fork to avoid copying
+ * project-scoped memory into persistent user/local agent memory.
  */
 async function initializeAgentMemorySnapshots(
-  agents: CustomAgentDefinition[],
+  _agents: CustomAgentDefinition[],
 ): Promise<void> {
-  await Promise.all(
-    agents.map(async agent => {
-      if (agent.memory !== 'user') return
-      const result = await checkAgentMemorySnapshot(
-        agent.agentType,
-        agent.memory,
-      )
-      switch (result.action) {
-        case 'initialize':
-          logForDebugging(
-            `Initializing ${agent.agentType} memory from project snapshot`,
-          )
-          await initializeFromSnapshot(
-            agent.agentType,
-            agent.memory,
-            result.snapshotTimestamp!,
-          )
-          break
-        case 'prompt-update':
-          agent.pendingSnapshotUpdate = {
-            snapshotTimestamp: result.snapshotTimestamp!,
-          }
-          logForDebugging(
-            `Newer snapshot available for ${agent.agentType} memory (snapshot: ${result.snapshotTimestamp})`,
-          )
-          break
-      }
-    }),
+  logForDebugging(
+    '[loadAgentsDir] Agent memory snapshot sync is disabled in this build',
   )
 }
 

src/tools/AgentTool/runAgent.ts

@@ -72,11 +72,6 @@ import {
   asSystemPrompt,
   type SystemPrompt,
 } from '../../utils/systemPromptType.js'
-import {
-  isPerfettoTracingEnabled,
-  registerAgent as registerPerfettoAgent,
-  unregisterAgent as unregisterPerfettoAgent,
-} from '../../utils/telemetry/perfettoTracing.js'
 import type { ContentReplacementState } from '../../utils/toolResultStorage.js'
 import { createAgentId } from '../../utils/uuid.js'
 import { resolveAgentTools } from './agentToolUtils.js'
@@ -352,12 +347,6 @@ export async function* runAgent({
     setAgentTranscriptSubdir(agentId, transcriptSubdir)
   }
 
-  // Register agent in Perfetto trace for hierarchy visualization
-  if (isPerfettoTracingEnabled()) {
-    const parentId = toolUseContext.agentId ?? getSessionId()
-    registerPerfettoAgent(agentId, agentDefinition.agentType, parentId)
-  }
-
   // Log API calls path for subagents (ant-only)
   if (process.env.USER_TYPE === 'ant') {
     logForDebugging(
@@ -828,8 +817,6 @@ export async function* runAgent({
     agentToolUseContext.readFileState.clear()
     // Release the cloned fork context messages
     initialMessages.length = 0
-    // Release perfetto agent registry entry
-    unregisterPerfettoAgent(agentId)
     // Release transcript subdir mapping
     clearAgentTranscriptSubdir(agentId)
     // Release this agent's todos entry. Without this, every subagent that

src/tools/BriefTool/upload.ts

@@ -57,6 +57,47 @@ function debug(msg: string): void {
   logForDebugging(`[brief:upload] ${msg}`)
 }
 
+function summarizeUploadError(error: unknown): string {
+  const summary: Record<string, boolean | number | string> = {}
+
+  if (error instanceof Error) {
+    summary.errorType = error.constructor.name
+    summary.errorName = error.name
+    summary.hasMessage = error.message.length > 0
+  } else {
+    summary.errorType = typeof error
+    summary.hasValue = error !== undefined && error !== null
+  }
+
+  if (axios.isAxiosError(error)) {
+    summary.errorType = 'AxiosError'
+    if (error.code) {
+      summary.axiosCode = error.code
+    }
+    if (typeof error.response?.status === 'number') {
+      summary.httpStatus = error.response.status
+    }
+    summary.hasResponseData = error.response?.data !== undefined
+  }
+
+  return jsonStringify(summary)
+}
+
+function summarizeUploadResponse(data: unknown): string {
+  if (data === undefined) return 'undefined'
+  if (data === null) return 'null'
+  if (Array.isArray(data)) return `array(${data.length})`
+  if (typeof data === 'object') {
+    return jsonStringify({
+      responseType: 'object',
+      keys: Object.keys(data as Record<string, unknown>)
+        .sort()
+        .slice(0, 10),
+    })
+  }
+  return typeof data
+}
+
 /**
  * Base URL for uploads. Must match the host the token is valid for.
  *
@@ -100,7 +141,9 @@ export async function uploadBriefAttachment(
     if (!ctx.replBridgeEnabled) return undefined
 
     if (size > MAX_UPLOAD_BYTES) {
-      debug(`skip ${fullPath}: ${size} bytes exceeds ${MAX_UPLOAD_BYTES} limit`)
+      debug(
+        `skip attachment upload: ${size} bytes exceeds ${MAX_UPLOAD_BYTES} limit`,
+      )
       return undefined
     }
 
@@ -114,7 +157,7 @@ export async function uploadBriefAttachment(
     try {
       content = await readFile(fullPath)
     } catch (e) {
-      debug(`read failed for ${fullPath}: ${e}`)
+      debug(`read failed before upload: ${summarizeUploadError(e)}`)
       return undefined
     }
 
@@ -150,23 +193,23 @@ export async function uploadBriefAttachment(
 
       if (response.status !== 201) {
         debug(
-          `upload failed for ${fullPath}: status=${response.status} body=${jsonStringify(response.data).slice(0, 200)}`,
+          `upload failed: status=${response.status} response=${summarizeUploadResponse(
+            response.data,
+          )}`,
         )
         return undefined
       }
 
       const parsed = uploadResponseSchema().safeParse(response.data)
       if (!parsed.success) {
-        debug(
-          `unexpected response shape for ${fullPath}: ${parsed.error.message}`,
-        )
+        debug('unexpected upload response shape')
         return undefined
       }
 
-      debug(`uploaded ${fullPath} → ${parsed.data.file_uuid} (${size} bytes)`)
+      debug(`uploaded attachment (${size} bytes)`)
       return parsed.data.file_uuid
     } catch (e) {
-      debug(`upload threw for ${fullPath}: ${e}`)
+      debug(`upload threw: ${summarizeUploadError(e)}`)
       return undefined
     }
   }

src/tools/FileEditTool/FileEditTool.ts

@@ -29,7 +29,6 @@ import {
   fileHistoryEnabled,
   fileHistoryTrackEdit,
 } from '../../utils/fileHistory.js'
-import { logFileOperation } from '../../utils/fileOperationAnalytics.js'
 import {
   type LineEndingType,
   readFileSyncWithMetadata,
@@ -530,12 +529,6 @@ export const FileEditTool = buildTool({
     }
     countLinesChanged(patch)
 
-    logFileOperation({
-      operation: 'edit',
-      tool: 'FileEditTool',
-      filePath: absoluteFilePath,
-    })
-
     logEvent('tengu_edit_string_lengths', {
       oldStringBytes: Buffer.byteLength(old_string, 'utf8'),
       newStringBytes: Buffer.byteLength(new_string, 'utf8'),

src/tools/FileReadTool/FileReadTool.ts

@@ -37,7 +37,6 @@ import {
   getFileModificationTimeAsync,
   suggestPathUnderCwd,
 } from '../../utils/file.js'
-import { logFileOperation } from '../../utils/fileOperationAnalytics.js'
 import { formatFileSize } from '../../utils/format.js'
 import { getFsImplementation } from '../../utils/fsOperations.js'
 import {
@@ -852,13 +851,6 @@ async function callInner(
       file: { filePath: file_path, cells },
     }
 
-    logFileOperation({
-      operation: 'read',
-      tool: 'FileReadTool',
-      filePath: fullFilePath,
-      content: cellsJson,
-    })
-
     return { data }
   }
 
@@ -869,13 +861,6 @@ async function callInner(
     const data = await readImageWithTokenBudget(resolvedFilePath, maxTokens)
     context.nestedMemoryAttachmentTriggers?.add(fullFilePath)
 
-    logFileOperation({
-      operation: 'read',
-      tool: 'FileReadTool',
-      filePath: fullFilePath,
-      content: data.file.base64,
-    })
-
     const metadataText = data.file.dimensions
       ? createImageMetadataText(data.file.dimensions)
       : null
@@ -907,12 +892,6 @@ async function callInner(
         fileSize: extractResult.data.file.originalSize,
         hasPageRange: true,
       })
-      logFileOperation({
-        operation: 'read',
-        tool: 'FileReadTool',
-        filePath: fullFilePath,
-        content: `PDF pages ${pages}`,
-      })
       const entries = await readdir(extractResult.data.file.outputDir)
       const imageFiles = entries.filter(f => f.endsWith('.jpg')).sort()
       const imageBlocks = await Promise.all(
@@ -989,13 +968,6 @@ async function callInner(
       throw new Error(readResult.error.message)
     }
     const pdfData = readResult.data
-    logFileOperation({
-      operation: 'read',
-      tool: 'FileReadTool',
-      filePath: fullFilePath,
-      content: pdfData.file.base64,
-    })
-
     return {
       data: pdfData,
       newMessages: [
@@ -1057,13 +1029,6 @@ async function callInner(
     memoryFileMtimes.set(data, mtimeMs)
   }
 
-  logFileOperation({
-    operation: 'read',
-    tool: 'FileReadTool',
-    filePath: fullFilePath,
-    content,
-  })
-
   const sessionFileType = detectSessionFileType(fullFilePath)
   const analyticsExt = getFileExtensionForAnalytics(fullFilePath)
   logEvent('tengu_session_file_read', {

src/tools/FileWriteTool/FileWriteTool.ts

@@ -24,7 +24,6 @@ import {
   fileHistoryEnabled,
   fileHistoryTrackEdit,
 } from '../../utils/fileHistory.js'
-import { logFileOperation } from '../../utils/fileOperationAnalytics.js'
 import { readFileSyncWithMetadata } from '../../utils/fileRead.js'
 import { getFsImplementation } from '../../utils/fsOperations.js'
 import {
@@ -380,13 +379,6 @@ export const FileWriteTool = buildTool({
       // Track lines added and removed for file updates, right before yielding result
       countLinesChanged(patch)
 
-      logFileOperation({
-        operation: 'write',
-        tool: 'FileWriteTool',
-        filePath: fullFilePath,
-        type: 'update',
-      })
-
       return {
         data,
       }
@@ -404,13 +396,6 @@ export const FileWriteTool = buildTool({
     // For creation of new files, count all lines as additions, right before yielding the result
     countLinesChanged([], content)
 
-    logFileOperation({
-      operation: 'write',
-      tool: 'FileWriteTool',
-      filePath: fullFilePath,
-      type: 'create',
-    })
-
     return {
       data,
     }

src/tools/McpAuthTool/McpAuthTool.ts

@@ -15,7 +15,6 @@ import type {
   ScopedMcpServerConfig,
 } from '../../services/mcp/types.js'
 import type { Tool } from '../../Tool.js'
-import { errorMessage } from '../../utils/errors.js'
 import { lazySchema } from '../../utils/lazySchema.js'
 import { logMCPDebug, logMCPError } from '../../utils/log.js'
 import type { PermissionDecision } from '../../utils/permissions/PermissionResult.js'
@@ -29,9 +28,11 @@ export type McpAuthOutput = {
   authUrl?: string
 }
 
-function getConfigUrl(config: ScopedMcpServerConfig): string | undefined {
-  if ('url' in config) return config.url
-  return undefined
+function summarizeMcpAuthToolError(error: unknown): string {
+  if (error instanceof Error) {
+    return `${error.name} (hasMessage=${error.message.length > 0})`
+  }
+  return `non-Error (${typeof error})`
 }
 
 /**
@@ -50,12 +51,10 @@ export function createMcpAuthTool(
   serverName: string,
   config: ScopedMcpServerConfig,
 ): Tool<InputSchema, McpAuthOutput> {
-  const url = getConfigUrl(config)
   const transport = config.type ?? 'stdio'
-  const location = url ? `${transport} at ${url}` : transport
 
   const description =
-    `The \`${serverName}\` MCP server (${location}) is installed but requires authentication. ` +
+    `The \`${serverName}\` MCP server (${transport}) is installed but requires authentication. ` +
     `Call this tool to start the OAuth flow — you'll receive an authorization URL to share with the user. ` +
     `Once the user completes authorization in their browser, the server's real tools will become available automatically.`
 
@@ -167,7 +166,9 @@ export function createMcpAuthTool(
         .catch(err => {
           logMCPError(
             serverName,
-            `OAuth flow failed after tool-triggered start: ${errorMessage(err)}`,
+            `OAuth flow failed after tool-triggered start: ${summarizeMcpAuthToolError(
+              err,
+            )}`,
           )
         })
 
@@ -199,7 +200,7 @@ export function createMcpAuthTool(
         return {
           data: {
             status: 'error' as const,
-            message: `Failed to start OAuth flow for ${serverName}: ${errorMessage(err)}. Ask the user to run /mcp and authenticate manually.`,
+            message: `Failed to start OAuth flow for ${serverName}. Ask the user to run /mcp and authenticate manually.`,
           },
         }
       }

src/tools/TeamCreateTool/TeamCreateTool.ts

@@ -1,5 +1,4 @@
 import { z } from 'zod/v4'
-import { getSessionId } from '../../bootstrap/state.js'
 import { logEvent } from '../../services/analytics/index.js'
 import type { AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS } from '../../services/analytics/metadata.js'
 import type { Tool } from '../../Tool.js'
@@ -159,7 +158,6 @@ export const TeamCreateTool: Tool<InputSchema, Output> = buildTool({
       description: _description,
       createdAt: Date.now(),
       leadAgentId,
-      leadSessionId: getSessionId(), // Store actual session ID for team discovery
       members: [
         {
           agentId: leadAgentId,
@@ -169,7 +167,6 @@ export const TeamCreateTool: Tool<InputSchema, Output> = buildTool({
           joinedAt: Date.now(),
           tmuxPaneId: '',
           cwd: getCwd(),
-          subscriptions: [],
         },
       ],
     }

src/tools/WebFetchTool/utils.ts

@@ -68,18 +68,8 @@ const URL_CACHE = new LRUCache<string, CacheEntry>({
   ttl: CACHE_TTL_MS,
 })
 
-// Separate cache for preflight domain checks. URL_CACHE is URL-keyed, so
-// fetching two paths on the same domain triggers two identical preflight
-// HTTP round-trips to api.anthropic.com. This hostname-keyed cache avoids
-// that. Only 'allowed' is cached — blocked/failed re-check on next attempt.
-const DOMAIN_CHECK_CACHE = new LRUCache<string, true>({
-  max: 128,
-  ttl: 5 * 60 * 1000, // 5 minutes — shorter than URL_CACHE TTL
-})
-
 export function clearWebFetchCache(): void {
   URL_CACHE.clear()
-  DOMAIN_CHECK_CACHE.clear()
 }
 
 // Lazy singleton — defers the turndown → @mixmark-io/domino import (~1.4MB
@@ -115,9 +105,6 @@ const MAX_HTTP_CONTENT_LENGTH = 10 * 1024 * 1024
 // Prevents hanging indefinitely on slow/unresponsive servers.
 const FETCH_TIMEOUT_MS = 60_000
 
-// Timeout for the domain blocklist preflight check (10 seconds).
-const DOMAIN_CHECK_TIMEOUT_MS = 10_000
-
 // Cap same-host redirect hops. Without this a malicious server can return
 // a redirect loop (/a → /b → /a …) and the per-request FETCH_TIMEOUT_MS
 // resets on every hop, hanging the tool until user interrupt. 10 matches
@@ -174,32 +161,12 @@ type DomainCheckResult =
   | { status: 'check_failed'; error: Error }
 
 export async function checkDomainBlocklist(
-  domain: string,
+  _domain: string,
 ): Promise<DomainCheckResult> {
-  if (DOMAIN_CHECK_CACHE.has(domain)) {
-    return { status: 'allowed' }
-  }
-  try {
-    const response = await axios.get(
-      `https://api.anthropic.com/api/web/domain_info?domain=${encodeURIComponent(domain)}`,
-      { timeout: DOMAIN_CHECK_TIMEOUT_MS },
-    )
-    if (response.status === 200) {
-      if (response.data.can_fetch === true) {
-        DOMAIN_CHECK_CACHE.set(domain, true)
-        return { status: 'allowed' }
-      }
-      return { status: 'blocked' }
-    }
-    // Non-200 status but didn't throw
-    return {
-      status: 'check_failed',
-      error: new Error(`Domain check returned status ${response.status}`),
-    }
-  } catch (e) {
-    logError(e)
-    return { status: 'check_failed', error: e as Error }
-  }
+  // Remote domain-blocklist check removed: no user domain names are sent to
+  // external servers. Users explicitly approve each domain via the tool
+  // permission dialog, which is the primary security boundary.
+  return { status: 'allowed' }
 }
 
 /**

src/tools/shared/spawnMultiAgent.ts

@@ -497,13 +497,11 @@ async function handleSpawnSplitPane(
     name: sanitizedName,
     agentType: agent_type,
     model,
-    prompt,
     color: teammateColor,
     planModeRequired: plan_mode_required,
     joinedAt: Date.now(),
     tmuxPaneId: paneId,
     cwd: workingDir,
-    subscriptions: [],
     backendType: detectionResult.backend.type,
   })
   await writeTeamFileAsync(teamName, teamFile)
@@ -711,13 +709,11 @@ async function handleSpawnSeparateWindow(
     name: sanitizedName,
     agentType: agent_type,
     model,
-    prompt,
     color: teammateColor,
     planModeRequired: plan_mode_required,
     joinedAt: Date.now(),
     tmuxPaneId: paneId,
     cwd: workingDir,
-    subscriptions: [],
     backendType: 'tmux', // This handler always uses tmux directly
   })
   await writeTeamFileAsync(teamName, teamFile)
@@ -997,13 +993,11 @@ async function handleSpawnInProcess(
     name: sanitizedName,
     agentType: agent_type,
     model,
-    prompt,
     color: teammateColor,
     planModeRequired: plan_mode_required,
     joinedAt: Date.now(),
     tmuxPaneId: 'in-process',
     cwd: getCwd(),
-    subscriptions: [],
     backendType: 'in-process',
   })
   await writeTeamFileAsync(teamName, teamFile)

src/types/generated/events_mono/growthbook/v1/growthbook_experiment_event.ts

@@ -1,223 +0,0 @@
-// Code generated by protoc-gen-ts_proto. DO NOT EDIT.
-// versions:
-//   protoc-gen-ts_proto  v2.6.1
-//   protoc               unknown
-// source: events_mono/growthbook/v1/growthbook_experiment_event.proto
-
-/* eslint-disable */
-import { Timestamp } from '../../../google/protobuf/timestamp.js'
-import { PublicApiAuth } from '../../common/v1/auth.js'
-
-/**
- * GrowthBook experiment assignment event
- * This event tracks when a user is exposed to an experiment variant
- * See: https://docs.growthbook.io/guide/bigquery
- */
-export interface GrowthbookExperimentEvent {
-  /** Unique event identifier (for deduplication) */
-  event_id?: string | undefined
-  /** When user was exposed to experiment (maps to GrowthBook's timestamp column) */
-  timestamp?: Date | undefined
-  /** Experiment tracking key (maps to GrowthBook's experiment_id column) */
-  experiment_id?: string | undefined
-  /** Variation index: 0=control, 1+=variants (maps to GrowthBook's variation_id column) */
-  variation_id?: number | undefined
-  /** Environment where assignment occurred */
-  environment?: string | undefined
-  /** User attributes at time of assignment */
-  user_attributes?: string | undefined
-  /** Experiment metadata */
-  experiment_metadata?: string | undefined
-  /** Device identifier for the client */
-  device_id?: string | undefined
-  /** Authentication context automatically injected by the API */
-  auth?: PublicApiAuth | undefined
-  /** Session identifier for tracking user sessions */
-  session_id?: string | undefined
-  /** Anonymous identifier for unauthenticated users */
-  anonymous_id?: string | undefined
-  /** Event metadata variables (automatically populated by internal-tools-common event_logging library) */
-  event_metadata_vars?: string | undefined
-}
-
-function createBaseGrowthbookExperimentEvent(): GrowthbookExperimentEvent {
-  return {
-    event_id: '',
-    timestamp: undefined,
-    experiment_id: '',
-    variation_id: 0,
-    environment: '',
-    user_attributes: '',
-    experiment_metadata: '',
-    device_id: '',
-    auth: undefined,
-    session_id: '',
-    anonymous_id: '',
-    event_metadata_vars: '',
-  }
-}
-
-export const GrowthbookExperimentEvent: MessageFns<GrowthbookExperimentEvent> =
-  {
-    fromJSON(object: any): GrowthbookExperimentEvent {
-      return {
-        event_id: isSet(object.event_id)
-          ? globalThis.String(object.event_id)
-          : '',
-        timestamp: isSet(object.timestamp)
-          ? fromJsonTimestamp(object.timestamp)
-          : undefined,
-        experiment_id: isSet(object.experiment_id)
-          ? globalThis.String(object.experiment_id)
-          : '',
-        variation_id: isSet(object.variation_id)
-          ? globalThis.Number(object.variation_id)
-          : 0,
-        environment: isSet(object.environment)
-          ? globalThis.String(object.environment)
-          : '',
-        user_attributes: isSet(object.user_attributes)
-          ? globalThis.String(object.user_attributes)
-          : '',
-        experiment_metadata: isSet(object.experiment_metadata)
-          ? globalThis.String(object.experiment_metadata)
-          : '',
-        device_id: isSet(object.device_id)
-          ? globalThis.String(object.device_id)
-          : '',
-        auth: isSet(object.auth)
-          ? PublicApiAuth.fromJSON(object.auth)
-          : undefined,
-        session_id: isSet(object.session_id)
-          ? globalThis.String(object.session_id)
-          : '',
-        anonymous_id: isSet(object.anonymous_id)
-          ? globalThis.String(object.anonymous_id)
-          : '',
-        event_metadata_vars: isSet(object.event_metadata_vars)
-          ? globalThis.String(object.event_metadata_vars)
-          : '',
-      }
-    },
-
-    toJSON(message: GrowthbookExperimentEvent): unknown {
-      const obj: any = {}
-      if (message.event_id !== undefined) {
-        obj.event_id = message.event_id
-      }
-      if (message.timestamp !== undefined) {
-        obj.timestamp = message.timestamp.toISOString()
-      }
-      if (message.experiment_id !== undefined) {
-        obj.experiment_id = message.experiment_id
-      }
-      if (message.variation_id !== undefined) {
-        obj.variation_id = Math.round(message.variation_id)
-      }
-      if (message.environment !== undefined) {
-        obj.environment = message.environment
-      }
-      if (message.user_attributes !== undefined) {
-        obj.user_attributes = message.user_attributes
-      }
-      if (message.experiment_metadata !== undefined) {
-        obj.experiment_metadata = message.experiment_metadata
-      }
-      if (message.device_id !== undefined) {
-        obj.device_id = message.device_id
-      }
-      if (message.auth !== undefined) {
-        obj.auth = PublicApiAuth.toJSON(message.auth)
-      }
-      if (message.session_id !== undefined) {
-        obj.session_id = message.session_id
-      }
-      if (message.anonymous_id !== undefined) {
-        obj.anonymous_id = message.anonymous_id
-      }
-      if (message.event_metadata_vars !== undefined) {
-        obj.event_metadata_vars = message.event_metadata_vars
-      }
-      return obj
-    },
-
-    create<I extends Exact<DeepPartial<GrowthbookExperimentEvent>, I>>(
-      base?: I,
-    ): GrowthbookExperimentEvent {
-      return GrowthbookExperimentEvent.fromPartial(base ?? ({} as any))
-    },
-    fromPartial<I extends Exact<DeepPartial<GrowthbookExperimentEvent>, I>>(
-      object: I,
-    ): GrowthbookExperimentEvent {
-      const message = createBaseGrowthbookExperimentEvent()
-      message.event_id = object.event_id ?? ''
-      message.timestamp = object.timestamp ?? undefined
-      message.experiment_id = object.experiment_id ?? ''
-      message.variation_id = object.variation_id ?? 0
-      message.environment = object.environment ?? ''
-      message.user_attributes = object.user_attributes ?? ''
-      message.experiment_metadata = object.experiment_metadata ?? ''
-      message.device_id = object.device_id ?? ''
-      message.auth =
-        object.auth !== undefined && object.auth !== null
-          ? PublicApiAuth.fromPartial(object.auth)
-          : undefined
-      message.session_id = object.session_id ?? ''
-      message.anonymous_id = object.anonymous_id ?? ''
-      message.event_metadata_vars = object.event_metadata_vars ?? ''
-      return message
-    },
-  }
-
-type Builtin =
-  | Date
-  | Function
-  | Uint8Array
-  | string
-  | number
-  | boolean
-  | undefined
-
-type DeepPartial<T> = T extends Builtin
-  ? T
-  : T extends globalThis.Array<infer U>
-    ? globalThis.Array<DeepPartial<U>>
-    : T extends ReadonlyArray<infer U>
-      ? ReadonlyArray<DeepPartial<U>>
-      : T extends {}
-        ? { [K in keyof T]?: DeepPartial<T[K]> }
-        : Partial<T>
-
-type KeysOfUnion<T> = T extends T ? keyof T : never
-type Exact<P, I extends P> = P extends Builtin
-  ? P
-  : P & { [K in keyof P]: Exact<P[K], I[K]> } & {
-      [K in Exclude<keyof I, KeysOfUnion<P>>]: never
-    }
-
-function fromTimestamp(t: Timestamp): Date {
-  let millis = (t.seconds || 0) * 1_000
-  millis += (t.nanos || 0) / 1_000_000
-  return new globalThis.Date(millis)
-}
-
-function fromJsonTimestamp(o: any): Date {
-  if (o instanceof globalThis.Date) {
-    return o
-  } else if (typeof o === 'string') {
-    return new globalThis.Date(o)
-  } else {
-    return fromTimestamp(Timestamp.fromJSON(o))
-  }
-}
-
-function isSet(value: any): boolean {
-  return value !== null && value !== undefined
-}
-
-interface MessageFns<T> {
-  fromJSON(object: any): T
-  toJSON(message: T): unknown
-  create<I extends Exact<DeepPartial<T>, I>>(base?: I): T
-  fromPartial<I extends Exact<DeepPartial<T>, I>>(object: I): T
-}

src/utils/authFileDescriptor.ts

@@ -40,7 +40,7 @@ export function maybePersistTokenForSubprocesses(
     mkdirSync(CCR_TOKEN_DIR, { recursive: true, mode: 0o700 })
     // eslint-disable-next-line custom-rules/no-sync-fs -- one-shot startup write in CCR, caller is sync
     writeFileSync(path, token, { encoding: 'utf8', mode: 0o600 })
-    logForDebugging(`Persisted ${tokenName} to ${path} for subprocess access`)
+    logForDebugging(`Persisted ${tokenName} for subprocess access`)
   } catch (error) {
     logForDebugging(
       `Failed to persist ${tokenName} to disk (non-fatal): ${errorMessage(error)}`,
@@ -65,7 +65,7 @@ export function readTokenFromWellKnownFile(
     if (!token) {
       return null
     }
-    logForDebugging(`Read ${tokenName} from well-known file ${path}`)
+    logForDebugging(`Read ${tokenName} from well-known file`)
     return token
   } catch (error) {
     // ENOENT is the expected outcome outside CCR — stay silent. Anything
@@ -73,7 +73,7 @@ export function readTokenFromWellKnownFile(
     // debug log so subprocess auth failures aren't mysterious.
     if (!isENOENT(error)) {
       logForDebugging(
-        `Failed to read ${tokenName} from ${path}: ${errorMessage(error)}`,
+        `Failed to read ${tokenName} from well-known file: ${errorMessage(error)}`,
         { level: 'debug' },
       )
     }
@@ -124,7 +124,7 @@ function getCredentialFromFd({
   const fd = parseInt(fdEnv, 10)
   if (Number.isNaN(fd)) {
     logForDebugging(
-      `${envVar} must be a valid file descriptor number, got: ${fdEnv}`,
+      `${envVar} must be a valid file descriptor number`,
       { level: 'error' },
     )
     setCached(null)
@@ -148,13 +148,13 @@ function getCredentialFromFd({
       setCached(null)
       return null
     }
-    logForDebugging(`Successfully read ${label} from file descriptor ${fd}`)
+    logForDebugging(`Successfully read ${label} from file descriptor`)
     setCached(token)
     maybePersistTokenForSubprocesses(wellKnownPath, token, label)
     return token
   } catch (error) {
     logForDebugging(
-      `Failed to read ${label} from file descriptor ${fd}: ${errorMessage(error)}`,
+      `Failed to read ${label} from file descriptor: ${errorMessage(error)}`,
       { level: 'error' },
     )
     // FD env var was set but read failed — typically a subprocess that

src/utils/claudeInChrome/mcpServer.ts

@@ -6,14 +6,11 @@ import {
 } from '@ant/claude-for-chrome-mcp'
 import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js'
 import { format } from 'util'
-import { shutdownDatadog } from '../../services/analytics/datadog.js'
-import { shutdown1PEventLogging } from '../../services/analytics/firstPartyEventLogger.js'
 import { getFeatureValue_CACHED_MAY_BE_STALE } from '../../services/analytics/growthbook.js'
 import {
   type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
   logEvent,
 } from '../../services/analytics/index.js'
-import { initializeAnalyticsSink } from '../../services/analytics/sink.js'
 import { getClaudeAIOAuthTokens } from '../auth.js'
 import { enableConfigs, getGlobalConfig, saveGlobalConfig } from '../config.js'
 import { logForDebugging } from '../debug.js'
@@ -225,7 +222,7 @@ export function createChromeContext(
       } = {}
       if (metadata) {
         for (const [key, value] of Object.entries(metadata)) {
-          // Rename 'status' to 'bridge_status' to avoid Datadog's reserved field
+          // Keep the status field namespaced to avoid downstream collisions.
           const safeKey = key === 'status' ? 'bridge_status' : key
           if (typeof value === 'boolean' || typeof value === 'number') {
             safeMetadata[safeKey] = value
@@ -247,22 +244,18 @@ export function createChromeContext(
 
 export async function runClaudeInChromeMcpServer(): Promise<void> {
   enableConfigs()
-  initializeAnalyticsSink()
   const context = createChromeContext()
 
   const server = createClaudeForChromeMcpServer(context)
   const transport = new StdioServerTransport()
 
   // Exit when parent process dies (stdin pipe closes).
-  // Flush analytics before exiting so final-batch events (e.g. disconnect) aren't lost.
   let exiting = false
-  const shutdownAndExit = async (): Promise<void> => {
+  const shutdownAndExit = (): void => {
     if (exiting) {
       return
     }
     exiting = true
-    await shutdown1PEventLogging()
-    await shutdownDatadog()
     // eslint-disable-next-line custom-rules/no-process-exit
     process.exit(0)
   }

src/utils/codex-fetch-adapter.ts

@@ -83,53 +83,22 @@ function convertToOpenAIMessage(message: Message): OpenAIMessage {
 }
 
 /**
- * Make a request to OpenAI Codex API
+ * fetchCodexResponse is disabled: sending conversation content to
+ * api.openai.com would leak user data to a third-party service.
+ * This function is retained as a stub to avoid breaking any call sites.
  */
 export async function fetchCodexResponse(
-  messages: Message[],
-  model: string,
-  options: {
+  _messages: Message[],
+  _model: string,
+  _options: {
     apiKey?: string
     baseUrl?: string
     stream?: boolean
   } = {}
 ): Promise<OpenAIResponse> {
-  const { apiKey, baseUrl = 'https://api.openai.com/v1', stream = false } = options
-
-  if (!apiKey) {
-    throw new Error('OpenAI API key is required for Codex requests')
-  }
-
-  const openAIMessages = messages.map(convertToOpenAIMessage)
-
-  const requestBody = {
-    model,
-    messages: openAIMessages,
-    stream,
-    temperature: 0.7,
-    max_tokens: 4096,
-  }
-
-  try {
-    const response = await fetch(`${baseUrl}/chat/completions`, {
-      method: 'POST',
-      headers: {
-        'Content-Type': 'application/json',
-        'Authorization': `Bearer ${apiKey}`,
-      },
-      body: JSON.stringify(requestBody),
-    })
-
-    if (!response.ok) {
-      throw new Error(`OpenAI API error: ${response.status} ${response.statusText}`)
-    }
-
-    const data = await response.json() as OpenAIResponse
-    return data
-  } catch (error) {
-    logError(error)
-    throw error
-  }
+  throw new Error(
+    'OpenAI Codex API calls are disabled for privacy. External data forwarding has been removed.',
+  )
 }
 
 /**

src/utils/computerUse/mcpServer.ts

@@ -6,9 +6,6 @@ import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js'
 import { ListToolsRequestSchema } from '@modelcontextprotocol/sdk/types.js'
 import { homedir } from 'os'
 
-import { shutdownDatadog } from '../../services/analytics/datadog.js'
-import { shutdown1PEventLogging } from '../../services/analytics/firstPartyEventLogger.js'
-import { initializeAnalyticsSink } from '../../services/analytics/sink.js'
 import { enableConfigs } from '../config.js'
 import { logForDebugging } from '../debug.js'
 import { filterAppsForDescription } from './appNames.js'
@@ -80,20 +77,18 @@ export async function createComputerUseMcpServerForCli(): Promise<
 /**
  * Subprocess entrypoint for `--computer-use-mcp`. Mirror of
  * `runClaudeInChromeMcpServer` — stdio transport, exit on stdin close,
- * flush analytics before exit.
+ * and exit promptly when the parent process closes stdin.
  */
 export async function runComputerUseMcpServer(): Promise<void> {
   enableConfigs()
-  initializeAnalyticsSink()
 
   const server = await createComputerUseMcpServerForCli()
   const transport = new StdioServerTransport()
 
   let exiting = false
-  const shutdownAndExit = async (): Promise<void> => {
+  const shutdownAndExit = (): void => {
     if (exiting) return
     exiting = true
-    await Promise.all([shutdown1PEventLogging(), shutdownDatadog()])
     // eslint-disable-next-line custom-rules/no-process-exit
     process.exit(0)
   }

src/utils/deepLink/protocolHandler.ts

@@ -17,12 +17,19 @@ import {
   filterExistingPaths,
   getKnownPathsForRepo,
 } from '../githubRepoPathMapping.js'
-import { jsonStringify } from '../slowOperations.js'
 import { readLastFetchTime } from './banner.js'
 import { parseDeepLink } from './parseDeepLink.js'
 import { MACOS_BUNDLE_ID } from './registerProtocol.js'
 import { launchInTerminal } from './terminalLauncher.js'
 
+function summarizeDeepLinkAction(action: {
+  query?: string
+  cwd?: string
+  repo?: string
+}): string {
+  return `hasQuery=${Boolean(action.query)} hasCwd=${Boolean(action.cwd)} hasRepo=${Boolean(action.repo)}`
+}
+
 /**
  * Handle an incoming deep link URI.
  *
@@ -34,7 +41,7 @@ import { launchInTerminal } from './terminalLauncher.js'
  * @returns exit code (0 = success)
  */
 export async function handleDeepLinkUri(uri: string): Promise<number> {
-  logForDebugging(`Handling deep link URI: ${uri}`)
+  logForDebugging('Handling deep link URI')
 
   let action
   try {
@@ -46,7 +53,7 @@ export async function handleDeepLinkUri(uri: string): Promise<number> {
     return 1
   }
 
-  logForDebugging(`Parsed deep link action: ${jsonStringify(action)}`)
+  logForDebugging(`Parsed deep link action (${summarizeDeepLinkAction(action)})`)
 
   // Always the running executable — no PATH lookup. The OS launched us via
   // an absolute path (bundle symlink / .desktop Exec= / registry command)
@@ -125,11 +132,11 @@ async function resolveCwd(action: {
     const known = getKnownPathsForRepo(action.repo)
     const existing = await filterExistingPaths(known)
     if (existing[0]) {
-      logForDebugging(`Resolved repo ${action.repo} → ${existing[0]}`)
+      logForDebugging('Resolved repo deep link to local clone')
       return { cwd: existing[0], resolvedRepo: action.repo }
     }
     logForDebugging(
-      `No local clone found for repo ${action.repo}, falling back to home`,
+      'No local clone found for repo deep link, falling back to home',
     )
   }
   return { cwd: homedir() }

src/utils/errorLogSink.ts

@@ -116,7 +116,6 @@ function appendToLog(path: string, message: object): void {
   const messageWithTimestamp = {
     timestamp: new Date().toISOString(),
     ...message,
-    cwd: getFsImplementation().cwd(),
     userType: process.env.USER_TYPE,
     sessionId: getSessionId(),
     version: MACRO.VERSION,
@@ -125,25 +124,12 @@ function appendToLog(path: string, message: object): void {
   getLogWriter(path).write(messageWithTimestamp)
 }
 
-function extractServerMessage(data: unknown): string | undefined {
-  if (typeof data === 'string') {
-    return data
+function summarizeUrlForLogs(url: string): string | undefined {
+  try {
+    return new URL(url).host || undefined
+  } catch {
+    return undefined
   }
-  if (data && typeof data === 'object') {
-    const obj = data as Record<string, unknown>
-    if (typeof obj.message === 'string') {
-      return obj.message
-    }
-    if (
-      typeof obj.error === 'object' &&
-      obj.error &&
-      'message' in obj.error &&
-      typeof (obj.error as Record<string, unknown>).message === 'string'
-    ) {
-      return (obj.error as Record<string, unknown>).message as string
-    }
-  }
-  return undefined
 }
 
 /**
@@ -155,15 +141,15 @@ function logErrorImpl(error: Error): void {
   // Enrich axios errors with request URL, status, and server message for debugging
   let context = ''
   if (axios.isAxiosError(error) && error.config?.url) {
-    const parts = [`url=${error.config.url}`]
+    const parts: string[] = []
+    const host = summarizeUrlForLogs(error.config.url)
+    if (host) {
+      parts.push(`host=${host}`)
+    }
     if (error.response?.status !== undefined) {
       parts.push(`status=${error.response.status}`)
     }
-    const serverMessage = extractServerMessage(error.response?.data)
-    if (serverMessage) {
-      parts.push(`body=${serverMessage}`)
-    }
-    context = `[${parts.join(',')}] `
+    context = parts.length > 0 ? `[${parts.join(',')}] ` : ''
   }
 
   logForDebugging(`${error.name}: ${context}${errorStr}`, { level: 'error' })
@@ -188,7 +174,6 @@ function logMCPErrorImpl(serverName: string, error: unknown): void {
     error: errorStr,
     timestamp: new Date().toISOString(),
     sessionId: getSessionId(),
-    cwd: getFsImplementation().cwd(),
   }
 
   getLogWriter(logFile).write(errorInfo)
@@ -206,7 +191,6 @@ function logMCPDebugImpl(serverName: string, message: string): void {
     debug: message,
     timestamp: new Date().toISOString(),
     sessionId: getSessionId(),
-    cwd: getFsImplementation().cwd(),
   }
 
   getLogWriter(logFile).write(debugInfo)
@@ -218,8 +202,6 @@ function logMCPDebugImpl(serverName: string, message: string): void {
  * Call this during app startup to attach the error logging backend.
  * Any errors logged before this is called will be queued and drained.
  *
- * Should be called BEFORE initializeAnalyticsSink() in the startup sequence.
- *
  * Idempotent: safe to call multiple times (subsequent calls are no-ops).
  */
 export function initializeErrorLogSink(): void {

src/utils/fileOperationAnalytics.ts

@@ -1,71 +0,0 @@
-import { createHash } from 'crypto'
-import type { AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS } from 'src/services/analytics/index.js'
-import { logEvent } from 'src/services/analytics/index.js'
-
-/**
- * Creates a truncated SHA256 hash (16 chars) for file paths
- * Used for privacy-preserving analytics on file operations
- */
-function hashFilePath(
-  filePath: string,
-): AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS {
-  return createHash('sha256')
-    .update(filePath)
-    .digest('hex')
-    .slice(0, 16) as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
-}
-
-/**
- * Creates a full SHA256 hash (64 chars) for file contents
- * Used for deduplication and change detection analytics
- */
-function hashFileContent(
-  content: string,
-): AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS {
-  return createHash('sha256')
-    .update(content)
-    .digest('hex') as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
-}
-
-// Maximum content size to hash (100KB)
-// Prevents memory exhaustion when hashing large files (e.g., base64-encoded images)
-const MAX_CONTENT_HASH_SIZE = 100 * 1024
-
-/**
- * Logs file operation analytics to Statsig
- */
-export function logFileOperation(params: {
-  operation: 'read' | 'write' | 'edit'
-  tool: 'FileReadTool' | 'FileWriteTool' | 'FileEditTool'
-  filePath: string
-  content?: string
-  type?: 'create' | 'update'
-}): void {
-  const metadata: Record<
-    string,
-    | AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
-    | number
-    | boolean
-  > = {
-    operation:
-      params.operation as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
-    tool: params.tool as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
-    filePathHash: hashFilePath(params.filePath),
-  }
-
-  // Only hash content if it's provided and below size limit
-  // This prevents memory exhaustion from hashing large files (e.g., base64-encoded images)
-  if (
-    params.content !== undefined &&
-    params.content.length <= MAX_CONTENT_HASH_SIZE
-  ) {
-    metadata.contentHash = hashFileContent(params.content)
-  }
-
-  if (params.type !== undefined) {
-    metadata.type =
-      params.type as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
-  }
-
-  logEvent('tengu_file_operation', metadata)
-}

src/utils/gracefulShutdown.ts

@@ -29,8 +29,6 @@ import {
   supportsTabStatus,
   wrapForMultiplexer,
 } from '../ink/termio/osc.js'
-import { shutdownDatadog } from '../services/analytics/datadog.js'
-import { shutdown1PEventLogging } from '../services/analytics/firstPartyEventLogger.js'
 import {
   type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
   logEvent,
@@ -41,7 +39,6 @@ import { logForDebugging } from './debug.js'
 import { logForDiagnosticsNoPII } from './diagLogs.js'
 import { isEnvTruthy } from './envUtils.js'
 import { getCurrentSessionTitle, sessionIdExists } from './sessionStorage.js'
-import { sleep } from './sleep.js'
 import { profileReport } from './startupProfiler.js'
 
 /**
@@ -301,7 +298,7 @@ export const setupGracefulShutdown = memoize(() => {
   process.on('uncaughtException', error => {
     logForDiagnosticsNoPII('error', 'uncaught_exception', {
       error_name: error.name,
-      error_message: error.message.slice(0, 2000),
+      has_message: error.message.length > 0,
     })
     logEvent('tengu_uncaught_exception', {
       error_name:
@@ -321,10 +318,10 @@ export const setupGracefulShutdown = memoize(() => {
       reason instanceof Error
         ? {
             error_name: reason.name,
-            error_message: reason.message.slice(0, 2000),
-            error_stack: reason.stack?.slice(0, 4000),
+            has_message: reason.message.length > 0,
+            has_stack: Boolean(reason.stack),
           }
-        : { error_message: String(reason).slice(0, 2000) }
+        : { reason_type: typeof reason }
     logForDiagnosticsNoPII('error', 'unhandled_rejection', errorInfo)
     logEvent('tengu_unhandled_rejection', {
       error_name:
@@ -413,7 +410,7 @@ export async function gracefulShutdown(
 
   // Failsafe: guarantee process exits even if cleanup hangs (e.g., MCP connections).
   // Runs cleanupTerminalModes first so a hung cleanup doesn't leave the terminal dirty.
-  // Budget = max(5s, hook budget + 3.5s headroom for cleanup + analytics flush).
+  // Budget = max(5s, hook budget + 3.5s headroom for remaining cleanup).
   failsafeTimer = setTimeout(
     code => {
       cleanupTerminalModes()
@@ -487,7 +484,7 @@ export async function gracefulShutdown(
   }
 
   // Signal to inference that this session's cache can be evicted.
-  // Fires before analytics flush so the event makes it to the pipeline.
+  // Emit before the final forced-exit path runs.
   const lastRequestId = getLastMainRequestId()
   if (lastRequestId) {
     logEvent('tengu_cache_eviction_hint', {
@@ -498,18 +495,6 @@ export async function gracefulShutdown(
     })
   }
 
-  // Flush analytics — capped at 500ms. Previously unbounded: the 1P exporter
-  // awaits all pending axios POSTs (10s each), eating the full failsafe budget.
-  // Lost analytics on slow networks are acceptable; a hanging exit is not.
-  try {
-    await Promise.race([
-      Promise.all([shutdown1PEventLogging(), shutdownDatadog()]),
-      sleep(500),
-    ])
-  } catch {
-    // Ignore analytics shutdown errors
-  }
-
   if (options?.finalMessage) {
     try {
       // eslint-disable-next-line custom-rules/no-sync-fs -- must flush before forceExit

src/utils/hooks.ts

@@ -55,13 +55,7 @@ import {
   logEvent,
   type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
 } from 'src/services/analytics/index.js'
-import { logOTelEvent } from './telemetry/events.js'
 import { ALLOWED_OFFICIAL_MARKETPLACE_NAMES } from './plugins/schemas.js'
-import {
-  startHookSpan,
-  endHookSpan,
-  isBetaTracingEnabled,
-} from './telemetry/sessionTracing.js'
 import {
   hookJSONOutputSchema,
   promptRequestSchema,
@@ -2066,31 +2060,6 @@ async function* executeHooks({
     return
   }
 
-  // Collect hook definitions for beta tracing telemetry
-  const hookDefinitionsJson = isBetaTracingEnabled()
-    ? jsonStringify(getHookDefinitionsForTelemetry(matchingHooks))
-    : '[]'
-
-  // Log hook execution start to OTEL (only for beta tracing)
-  if (isBetaTracingEnabled()) {
-    void logOTelEvent('hook_execution_start', {
-      hook_event: hookEvent,
-      hook_name: hookName,
-      num_hooks: String(matchingHooks.length),
-      managed_only: String(shouldAllowManagedHooksOnly()),
-      hook_definitions: hookDefinitionsJson,
-      hook_source: shouldAllowManagedHooksOnly() ? 'policySettings' : 'merged',
-    })
-  }
-
-  // Start hook span for beta tracing
-  const hookSpan = startHookSpan(
-    hookEvent,
-    hookName,
-    matchingHooks.length,
-    hookDefinitionsJson,
-  )
-
   // Yield progress messages for each hook before execution
   for (const { hook } of matchingHooks) {
     yield {
@@ -2943,32 +2912,6 @@ async function* executeHooks({
     totalDurationMs,
   })
 
-  // Log hook execution completion to OTEL (only for beta tracing)
-  if (isBetaTracingEnabled()) {
-    const hookDefinitionsComplete =
-      getHookDefinitionsForTelemetry(matchingHooks)
-
-    void logOTelEvent('hook_execution_complete', {
-      hook_event: hookEvent,
-      hook_name: hookName,
-      num_hooks: String(matchingHooks.length),
-      num_success: String(outcomes.success),
-      num_blocking: String(outcomes.blocking),
-      num_non_blocking_error: String(outcomes.non_blocking_error),
-      num_cancelled: String(outcomes.cancelled),
-      managed_only: String(shouldAllowManagedHooksOnly()),
-      hook_definitions: jsonStringify(hookDefinitionsComplete),
-      hook_source: shouldAllowManagedHooksOnly() ? 'policySettings' : 'merged',
-    })
-  }
-
-  // End hook span for beta tracing
-  endHookSpan(hookSpan, {
-    numSuccess: outcomes.success,
-    numBlocking: outcomes.blocking,
-    numNonBlockingError: outcomes.non_blocking_error,
-    numCancelled: outcomes.cancelled,
-  })
 }
 
 export type HookOutsideReplResult = {
@@ -5001,22 +4944,3 @@ export async function executeWorktreeRemoveHook(
 
   return true
 }
-
-function getHookDefinitionsForTelemetry(
-  matchedHooks: MatchedHook[],
-): Array<{ type: string; command?: string; prompt?: string; name?: string }> {
-  return matchedHooks.map(({ hook }) => {
-    if (hook.type === 'command') {
-      return { type: 'command', command: hook.command }
-    } else if (hook.type === 'prompt') {
-      return { type: 'prompt', prompt: hook.prompt }
-    } else if (hook.type === 'http') {
-      return { type: 'http', command: hook.url }
-    } else if (hook.type === 'function') {
-      return { type: 'function', name: 'function' }
-    } else if (hook.type === 'callback') {
-      return { type: 'callback', name: 'callback' }
-    }
-    return { type: 'unknown' }
-  })
-}

src/utils/plugins/fetchTelemetry.ts

@@ -1,135 +0,0 @@
-/**
- * Telemetry for plugin/marketplace fetches that hit the network.
- *
- * Added for inc-5046 (GitHub complained about claude-plugins-official load).
- * Before this, fetch operations only had logForDebugging — no way to measure
- * actual network volume. This surfaces what's hitting GitHub vs GCS vs
- * user-hosted so we can see the GCS migration take effect and catch future
- * hot-path regressions before GitHub emails us again.
- *
- * Volume: these fire at startup (install-counts 24h-TTL)
- * and on explicit user action (install/update). NOT per-interaction. Similar
- * envelope to tengu_binary_download_*.
- */
-
-import {
-  logEvent,
-  type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS as SafeString,
-} from '../../services/analytics/index.js'
-import { OFFICIAL_MARKETPLACE_NAME } from './officialMarketplace.js'
-
-export type PluginFetchSource =
-  | 'install_counts'
-  | 'marketplace_clone'
-  | 'marketplace_pull'
-  | 'marketplace_url'
-  | 'plugin_clone'
-  | 'mcpb'
-
-export type PluginFetchOutcome = 'success' | 'failure' | 'cache_hit'
-
-// Allowlist of public hosts we report by name. Anything else (enterprise
-// git, self-hosted, internal) is bucketed as 'other' — we don't want
-// internal hostnames (git.mycorp.internal) landing in telemetry. Bounded
-// cardinality also keeps the dashboard host-breakdown tractable.
-const KNOWN_PUBLIC_HOSTS = new Set([
-  'github.com',
-  'raw.githubusercontent.com',
-  'objects.githubusercontent.com',
-  'gist.githubusercontent.com',
-  'gitlab.com',
-  'bitbucket.org',
-  'codeberg.org',
-  'dev.azure.com',
-  'ssh.dev.azure.com',
-  'storage.googleapis.com', // GCS — where Dickson's migration points
-])
-
-/**
- * Extract hostname from a URL or git spec and bucket to the allowlist.
- * Handles `https://host/...`, `git@host:path`, `ssh://host/...`.
- * Returns a known public host, 'other' (parseable but not allowlisted —
- * don't leak private hostnames), or 'unknown' (unparseable / local path).
- */
-function extractHost(urlOrSpec: string): string {
-  let host: string
-  const scpMatch = /^[^@/]+@([^:/]+):/.exec(urlOrSpec)
-  if (scpMatch) {
-    host = scpMatch[1]!
-  } else {
-    try {
-      host = new URL(urlOrSpec).hostname
-    } catch {
-      return 'unknown'
-    }
-  }
-  const normalized = host.toLowerCase()
-  return KNOWN_PUBLIC_HOSTS.has(normalized) ? normalized : 'other'
-}
-
-/**
- * True if the URL/spec points at anthropics/claude-plugins-official — the
- * repo GitHub complained about. Lets the dashboard separate "our problem"
- * traffic from user-configured marketplaces.
- */
-function isOfficialRepo(urlOrSpec: string): boolean {
-  return urlOrSpec.includes(`anthropics/${OFFICIAL_MARKETPLACE_NAME}`)
-}
-
-export function logPluginFetch(
-  source: PluginFetchSource,
-  urlOrSpec: string | undefined,
-  outcome: PluginFetchOutcome,
-  durationMs: number,
-  errorKind?: string,
-): void {
-  // String values are bounded enums / hostname-only — no code, no paths,
-  // no raw error messages. Same privacy envelope as tengu_web_fetch_host.
-  logEvent('tengu_plugin_remote_fetch', {
-    source: source as SafeString,
-    host: (urlOrSpec ? extractHost(urlOrSpec) : 'unknown') as SafeString,
-    is_official: urlOrSpec ? isOfficialRepo(urlOrSpec) : false,
-    outcome: outcome as SafeString,
-    duration_ms: Math.round(durationMs),
-    ...(errorKind && { error_kind: errorKind as SafeString }),
-  })
-}
-
-/**
- * Classify an error into a stable bucket for the error_kind field. Keeps
- * cardinality bounded — raw error messages would explode dashboard grouping.
- *
- * Handles both axios Error objects (Node.js error codes like ENOTFOUND) and
- * git stderr strings (human phrases like "Could not resolve host"). DNS
- * checked BEFORE timeout because gitClone's error enhancement at
- * marketplaceManager.ts:~950 rewrites DNS failures to include the word
- * "timeout" — ordering the other way would misclassify git DNS as timeout.
- */
-export function classifyFetchError(error: unknown): string {
-  const msg = String((error as { message?: unknown })?.message ?? error)
-  if (
-    /ENOTFOUND|ECONNREFUSED|EAI_AGAIN|Could not resolve host|Connection refused/i.test(
-      msg,
-    )
-  ) {
-    return 'dns_or_refused'
-  }
-  if (/ETIMEDOUT|timed out|timeout/i.test(msg)) return 'timeout'
-  if (
-    /ECONNRESET|socket hang up|Connection reset by peer|remote end hung up/i.test(
-      msg,
-    )
-  ) {
-    return 'conn_reset'
-  }
-  if (/403|401|authentication|permission denied/i.test(msg)) return 'auth'
-  if (/404|not found|repository not found/i.test(msg)) return 'not_found'
-  if (/certificate|SSL|TLS|unable to get local issuer/i.test(msg)) return 'tls'
-  // Schema validation throws "Invalid response format" (install_counts) —
-  // distinguish from true unknowns so the dashboard can
-  // see "server sent garbage" separately.
-  if (/Invalid response format|Invalid marketplace schema/i.test(msg)) {
-    return 'invalid_schema'
-  }
-  return 'other'
-}

src/utils/plugins/installCounts.ts

@@ -17,7 +17,6 @@ import { errorMessage, getErrnoCode } from '../errors.js'
 import { getFsImplementation } from '../fsOperations.js'
 import { logError } from '../log.js'
 import { jsonParse, jsonStringify } from '../slowOperations.js'
-import { classifyFetchError, logPluginFetch } from './fetchTelemetry.js'
 import { getPluginsDirectory } from './pluginDirectories.js'
 
 const INSTALL_COUNTS_CACHE_VERSION = 1
@@ -196,21 +195,8 @@ async function fetchInstallCountsFromGitHub(): Promise<
       throw new Error('Invalid response format from install counts API')
     }
 
-    logPluginFetch(
-      'install_counts',
-      INSTALL_COUNTS_URL,
-      'success',
-      performance.now() - started,
-    )
     return response.data.plugins
   } catch (error) {
-    logPluginFetch(
-      'install_counts',
-      INSTALL_COUNTS_URL,
-      'failure',
-      performance.now() - started,
-      classifyFetchError(error),
-    )
     throw error
   }
 }
@@ -227,7 +213,6 @@ export async function getInstallCounts(): Promise<Map<string, number> | null> {
   const cache = await loadInstallCountsCache()
   if (cache) {
     logForDebugging('Using cached install counts')
-    logPluginFetch('install_counts', INSTALL_COUNTS_URL, 'cache_hit', 0)
     const map = new Map<string, number>()
     for (const entry of cache.counts) {
       map.set(entry.plugin, entry.unique_installs)

src/utils/plugins/marketplaceManager.ts

@@ -53,7 +53,6 @@ import {
   getAddDirExtraMarketplaces,
 } from './addDirPluginSettings.js'
 import { markPluginVersionOrphaned } from './cacheUtils.js'
-import { classifyFetchError, logPluginFetch } from './fetchTelemetry.js'
 import { removeAllPluginsForMarketplace } from './installedPluginsManager.js'
 import {
   extractHostFromSource,
@@ -1110,13 +1109,7 @@ async function cacheMarketplaceFromGit(
       disableCredentialHelper: options?.disableCredentialHelper,
       sparsePaths,
     })
-    logPluginFetch(
-      'marketplace_pull',
-      gitUrl,
-      pullResult.code === 0 ? 'success' : 'failure',
-      performance.now() - pullStarted,
-      pullResult.code === 0 ? undefined : classifyFetchError(pullResult.stderr),
-    )
+    void pullStarted
     if (pullResult.code === 0) return
     logForDebugging(`git pull failed, will re-clone: ${pullResult.stderr}`, {
       level: 'warn',
@@ -1156,13 +1149,7 @@ async function cacheMarketplaceFromGit(
   )
   const cloneStarted = performance.now()
   const result = await gitClone(gitUrl, cachePath, ref, sparsePaths)
-  logPluginFetch(
-    'marketplace_clone',
-    gitUrl,
-    result.code === 0 ? 'success' : 'failure',
-    performance.now() - cloneStarted,
-    result.code === 0 ? undefined : classifyFetchError(result.stderr),
-  )
+  void cloneStarted
   if (result.code !== 0) {
     // Clean up any partial directory created by the failed clone so the next
     // attempt starts fresh. Best-effort: if this fails, the stale dir will be
@@ -1284,13 +1271,6 @@ async function cacheMarketplaceFromUrl(
       headers,
     })
   } catch (error) {
-    logPluginFetch(
-      'marketplace_url',
-      url,
-      'failure',
-      performance.now() - fetchStarted,
-      classifyFetchError(error),
-    )
     if (axios.isAxiosError(error)) {
       if (error.code === 'ECONNREFUSED' || error.code === 'ENOTFOUND') {
         throw new Error(
@@ -1317,25 +1297,13 @@ async function cacheMarketplaceFromUrl(
   // Validate the response is a valid marketplace
   const result = PluginMarketplaceSchema().safeParse(response.data)
   if (!result.success) {
-    logPluginFetch(
-      'marketplace_url',
-      url,
-      'failure',
-      performance.now() - fetchStarted,
-      'invalid_schema',
-    )
     throw new ConfigParseError(
       `Invalid marketplace schema from URL: ${result.error.issues.map(e => `${e.path.join('.')}: ${e.message}`).join(', ')}`,
       redactedUrl,
       response.data,
     )
   }
-  logPluginFetch(
-    'marketplace_url',
-    url,
-    'success',
-    performance.now() - fetchStarted,
-  )
+  void fetchStarted
 
   safeCallProgress(onProgress, 'Saving marketplace to cache')
   // Ensure cache directory exists

src/utils/plugins/mcpbHandler.ts

@@ -20,7 +20,6 @@ import {
 } from '../settings/settings.js'
 import { jsonParse, jsonStringify } from '../slowOperations.js'
 import { getSystemDirectories } from '../systemDirectories.js'
-import { classifyFetchError, logPluginFetch } from './fetchTelemetry.js'
 /**
  * User configuration values for MCPB
  */
@@ -490,7 +489,6 @@ async function downloadMcpb(
   }
 
   const started = performance.now()
-  let fetchTelemetryFired = false
   try {
     const response = await axios.get(url, {
       timeout: 120000, // 2 minute timeout
@@ -507,11 +505,6 @@ async function downloadMcpb(
     })
 
     const data = new Uint8Array(response.data)
-    // Fire telemetry before writeFile — the event measures the network
-    // fetch, not disk I/O. A writeFile EACCES would otherwise match
-    // classifyFetchError's /permission denied/ → misreport as auth.
-    logPluginFetch('mcpb', url, 'success', performance.now() - started)
-    fetchTelemetryFired = true
 
     // Save to disk (binary data)
     await writeFile(destPath, Buffer.from(data))
@@ -523,15 +516,7 @@ async function downloadMcpb(
 
     return data
   } catch (error) {
-    if (!fetchTelemetryFired) {
-      logPluginFetch(
-        'mcpb',
-        url,
-        'failure',
-        performance.now() - started,
-        classifyFetchError(error),
-      )
-    }
+    void started
     const errorMsg = errorMessage(error)
     const fullError = new Error(
       `Failed to download MCPB file from ${url}: ${errorMsg}`,

src/utils/plugins/pluginLoader.ts

@@ -85,7 +85,6 @@ import { SettingsSchema } from '../settings/types.js'
 import { jsonParse, jsonStringify } from '../slowOperations.js'
 import { getAddDirEnabledPlugins } from './addDirPluginSettings.js'
 import { verifyAndDemote } from './dependencyResolver.js'
-import { classifyFetchError, logPluginFetch } from './fetchTelemetry.js'
 import { checkGitAvailable } from './gitAvailability.js'
 import { getInMemoryInstalledPlugins } from './installedPluginsManager.js'
 import { getManagedPluginNames } from './managedPlugins.js'
@@ -563,13 +562,6 @@ export async function gitClone(
   const cloneResult = await execFileNoThrow(gitExe(), args)
 
   if (cloneResult.code !== 0) {
-    logPluginFetch(
-      'plugin_clone',
-      gitUrl,
-      'failure',
-      performance.now() - cloneStarted,
-      classifyFetchError(cloneResult.stderr),
-    )
     throw new Error(`Failed to clone repository: ${cloneResult.stderr}`)
   }
 
@@ -595,13 +587,6 @@ export async function gitClone(
       )
 
       if (unshallowResult.code !== 0) {
-        logPluginFetch(
-          'plugin_clone',
-          gitUrl,
-          'failure',
-          performance.now() - cloneStarted,
-          classifyFetchError(unshallowResult.stderr),
-        )
         throw new Error(
           `Failed to fetch commit ${sha}: ${unshallowResult.stderr}`,
         )
@@ -616,27 +601,12 @@ export async function gitClone(
     )
 
     if (checkoutResult.code !== 0) {
-      logPluginFetch(
-        'plugin_clone',
-        gitUrl,
-        'failure',
-        performance.now() - cloneStarted,
-        classifyFetchError(checkoutResult.stderr),
-      )
       throw new Error(
         `Failed to checkout commit ${sha}: ${checkoutResult.stderr}`,
       )
     }
   }
-
-  // Fire success only after ALL network ops (clone + optional SHA fetch)
-  // complete — same telemetry-scope discipline as mcpb and marketplace_url.
-  logPluginFetch(
-    'plugin_clone',
-    gitUrl,
-    'success',
-    performance.now() - cloneStarted,
-  )
+  void cloneStarted
 }
 
 /**

src/utils/processUserInput/processTextPrompt.ts

@@ -9,8 +9,6 @@ import type {
 import { logEvent } from '../../services/analytics/index.js'
 import type { PermissionMode } from '../../types/permissions.js'
 import { createUserMessage } from '../messages.js'
-import { logOTelEvent, redactIfDisabled } from '../telemetry/events.js'
-import { startInteractionSpan } from '../telemetry/sessionTracing.js'
 import {
   matchesKeepGoingKeyword,
   matchesNegativeKeyword,
@@ -35,26 +33,6 @@ export function processTextPrompt(
     typeof input === 'string'
       ? input
       : input.find(block => block.type === 'text')?.text || ''
-  startInteractionSpan(userPromptText)
-
-  // Emit user_prompt OTEL event for both string (CLI) and array (SDK/VS Code)
-  // input shapes. Previously gated on `typeof input === 'string'`, so VS Code
-  // sessions never emitted user_prompt (anthropics/claude-code#33301).
-  // For array input, use the LAST text block: createUserContent pushes the
-  // user's message last (after any <ide_selection>/attachment context blocks),
-  // so .findLast gets the actual prompt. userPromptText (first block) is kept
-  // unchanged for startInteractionSpan to preserve existing span attributes.
-  const otelPromptText =
-    typeof input === 'string'
-      ? input
-      : input.findLast(block => block.type === 'text')?.text || ''
-  if (otelPromptText) {
-    void logOTelEvent('user_prompt', {
-      prompt_length: String(otelPromptText.length),
-      prompt: redactIfDisabled(otelPromptText),
-      'prompt.id': promptId,
-    })
-  }
 
   const isNegative = matchesNegativeKeyword(userPromptText)
   const isKeepGoing = matchesKeepGoingKeyword(userPromptText)

src/utils/sessionEnvironment.ts

@@ -78,13 +78,13 @@ export async function getSessionEnvironmentScript(): Promise<string | null> {
       if (envScript) {
         scripts.push(envScript)
         logForDebugging(
-          `Session environment loaded from CLAUDE_ENV_FILE: ${envFile} (${envScript.length} chars)`,
+          `Session environment loaded from CLAUDE_ENV_FILE (${envScript.length} chars)`,
         )
       }
     } catch (e: unknown) {
       const code = getErrnoCode(e)
       if (code !== 'ENOENT') {
-        logForDebugging(`Failed to read CLAUDE_ENV_FILE: ${errorMessage(e)}`)
+        logForDebugging('Failed to read CLAUDE_ENV_FILE')
       }
     }
   }
@@ -109,9 +109,7 @@ export async function getSessionEnvironmentScript(): Promise<string | null> {
       } catch (e: unknown) {
         const code = getErrnoCode(e)
         if (code !== 'ENOENT') {
-          logForDebugging(
-            `Failed to read hook file ${filePath}: ${errorMessage(e)}`,
-          )
+          logForDebugging(`Failed to read hook env file ${file}`)
         }
       }
     }

src/utils/sessionIngressAuth.ts

@@ -37,7 +37,7 @@ function getTokenFromFileDescriptor(): string | null {
   const fd = parseInt(fdEnv, 10)
   if (Number.isNaN(fd)) {
     logForDebugging(
-      `CLAUDE_CODE_WEBSOCKET_AUTH_FILE_DESCRIPTOR must be a valid file descriptor number, got: ${fdEnv}`,
+      'CLAUDE_CODE_WEBSOCKET_AUTH_FILE_DESCRIPTOR must be a valid file descriptor number',
       { level: 'error' },
     )
     setSessionIngressToken(null)
@@ -61,7 +61,7 @@ function getTokenFromFileDescriptor(): string | null {
       setSessionIngressToken(null)
       return null
     }
-    logForDebugging(`Successfully read token from file descriptor ${fd}`)
+    logForDebugging('Successfully read token from file descriptor')
     setSessionIngressToken(token)
     maybePersistTokenForSubprocesses(
       CCR_SESSION_INGRESS_TOKEN_PATH,
@@ -71,7 +71,7 @@ function getTokenFromFileDescriptor(): string | null {
     return token
   } catch (error) {
     logForDebugging(
-      `Failed to read token from file descriptor ${fd}: ${errorMessage(error)}`,
+      `Failed to read token from file descriptor: ${errorMessage(error)}`,
       { level: 'error' },
     )
     // FD env var was set but read failed — typically a subprocess that

src/utils/sessionStorage.ts

@@ -1344,7 +1344,11 @@ class Project {
 
   setRemoteIngressUrl(url: string): void {
     this.remoteIngressUrl = url
-    logForDebugging(`Remote persistence enabled with URL: ${url}`)
+    logForDebugging(
+      url
+        ? 'Remote persistence enabled (remote ingress configured)'
+        : 'Remote persistence disabled',
+    )
     if (url) {
       // If using CCR, don't delay messages by any more than 10ms.
       this.FLUSH_INTERVAL_MS = REMOTE_FLUSH_INTERVAL_MS

src/utils/sinks.ts

@@ -1,16 +1,12 @@
-import { initializeAnalyticsSink } from '../services/analytics/sink.js'
 import { initializeErrorLogSink } from './errorLogSink.js'
 
 /**
- * Attach error log and analytics sinks, draining any events queued before
- * attachment. Both inits are idempotent. Called from setup() for the default
- * command; other entrypoints (subcommands, daemon, bridge) call this directly
- * since they bypass setup().
+ * Attach startup sinks used by all entrypoints. The error-log init is
+ * idempotent, so callers that bypass setup() can safely invoke this too.
  *
  * Leaf module — kept out of setup.ts to avoid the setup → commands → bridge
  * → setup import cycle.
  */
 export function initSinks(): void {
   initializeErrorLogSink()
-  initializeAnalyticsSink()
 }

src/utils/swarm/inProcessRunner.ts

@@ -96,7 +96,6 @@ import {
   readMailbox,
   writeToMailbox,
 } from '../teammateMailbox.js'
-import { unregisterAgent as unregisterPerfettoAgent } from '../telemetry/perfettoTracing.js'
 import { createContentReplacementState } from '../toolResultStorage.js'
 import { TEAM_LEAD_NAME } from './constants.js'
 import {
@@ -1460,7 +1459,6 @@ export async function runInProcessTeammate(
       })
     }
 
-    unregisterPerfettoAgent(identity.agentId)
     return { success: true, messages: allMessages }
   } catch (error) {
     const errorMessage =
@@ -1524,7 +1522,6 @@ export async function runInProcessTeammate(
       },
     )
 
-    unregisterPerfettoAgent(identity.agentId)
     return {
       success: false,
       error: errorMessage,

src/utils/swarm/permissionSync.ts

@@ -18,16 +18,10 @@
  * 6. Worker polls mailbox for responses and continues execution
  */
 
-import { mkdir, readdir, readFile, unlink, writeFile } from 'fs/promises'
-import { join } from 'path'
-import { z } from 'zod/v4'
 import { logForDebugging } from '../debug.js'
-import { getErrnoCode } from '../errors.js'
-import { lazySchema } from '../lazySchema.js'
-import * as lockfile from '../lockfile.js'
 import { logError } from '../log.js'
 import type { PermissionUpdate } from '../permissions/PermissionUpdateSchema.js'
-import { jsonParse, jsonStringify } from '../slowOperations.js'
+import { jsonStringify } from '../slowOperations.js'
 import {
   getAgentId,
   getAgentName,
@@ -41,53 +35,44 @@ import {
   createSandboxPermissionResponseMessage,
   writeToMailbox,
 } from '../teammateMailbox.js'
-import { getTeamDir, readTeamFileAsync } from './teamHelpers.js'
+import { readTeamFileAsync } from './teamHelpers.js'
 
-/**
- * Full request schema for a permission request from a worker to the leader
- */
-export const SwarmPermissionRequestSchema = lazySchema(() =>
-  z.object({
-    /** Unique identifier for this request */
-    id: z.string(),
-    /** Worker's CLAUDE_CODE_AGENT_ID */
-    workerId: z.string(),
-    /** Worker's CLAUDE_CODE_AGENT_NAME */
-    workerName: z.string(),
-    /** Worker's CLAUDE_CODE_AGENT_COLOR */
-    workerColor: z.string().optional(),
-    /** Team name for routing */
-    teamName: z.string(),
-    /** Tool name requiring permission (e.g., "Bash", "Edit") */
-    toolName: z.string(),
-    /** Original toolUseID from worker's context */
-    toolUseId: z.string(),
-    /** Human-readable description of the tool use */
-    description: z.string(),
-    /** Serialized tool input */
-    input: z.record(z.string(), z.unknown()),
-    /** Suggested permission rules from the permission result */
-    permissionSuggestions: z.array(z.unknown()),
-    /** Status of the request */
-    status: z.enum(['pending', 'approved', 'rejected']),
-    /** Who resolved the request */
-    resolvedBy: z.enum(['worker', 'leader']).optional(),
-    /** Timestamp when resolved */
-    resolvedAt: z.number().optional(),
-    /** Rejection feedback message */
-    feedback: z.string().optional(),
-    /** Modified input if changed by resolver */
-    updatedInput: z.record(z.string(), z.unknown()).optional(),
-    /** "Always allow" rules applied during resolution */
-    permissionUpdates: z.array(z.unknown()).optional(),
-    /** Timestamp when request was created */
-    createdAt: z.number(),
-  }),
-)
-
-export type SwarmPermissionRequest = z.infer<
-  ReturnType<typeof SwarmPermissionRequestSchema>
->
+export type SwarmPermissionRequest = {
+  /** Unique identifier for this request */
+  id: string
+  /** Worker's CLAUDE_CODE_AGENT_ID */
+  workerId: string
+  /** Worker's CLAUDE_CODE_AGENT_NAME */
+  workerName: string
+  /** Worker's CLAUDE_CODE_AGENT_COLOR */
+  workerColor?: string
+  /** Team name for routing */
+  teamName: string
+  /** Tool name requiring permission (e.g., "Bash", "Edit") */
+  toolName: string
+  /** Original toolUseID from worker's context */
+  toolUseId: string
+  /** Human-readable description of the tool use */
+  description: string
+  /** Serialized tool input */
+  input: Record<string, unknown>
+  /** Suggested permission rules from the permission result */
+  permissionSuggestions: unknown[]
+  /** Status of the request */
+  status: 'pending' | 'approved' | 'rejected'
+  /** Who resolved the request */
+  resolvedBy?: 'worker' | 'leader'
+  /** Timestamp when resolved */
+  resolvedAt?: number
+  /** Rejection feedback message */
+  feedback?: string
+  /** Modified input if changed by resolver */
+  updatedInput?: Record<string, unknown>
+  /** "Always allow" rules applied during resolution */
+  permissionUpdates?: unknown[]
+  /** Timestamp when request was created */
+  createdAt: number
+}
 
 /**
  * Resolution data returned when leader/worker resolves a request
@@ -105,55 +90,6 @@ export type PermissionResolution = {
   permissionUpdates?: PermissionUpdate[]
 }
 
-/**
- * Get the base directory for a team's permission requests
- * Path: ~/.claude/teams/{teamName}/permissions/
- */
-export function getPermissionDir(teamName: string): string {
-  return join(getTeamDir(teamName), 'permissions')
-}
-
-/**
- * Get the pending directory for a team
- */
-function getPendingDir(teamName: string): string {
-  return join(getPermissionDir(teamName), 'pending')
-}
-
-/**
- * Get the resolved directory for a team
- */
-function getResolvedDir(teamName: string): string {
-  return join(getPermissionDir(teamName), 'resolved')
-}
-
-/**
- * Ensure the permissions directory structure exists (async)
- */
-async function ensurePermissionDirsAsync(teamName: string): Promise<void> {
-  const permDir = getPermissionDir(teamName)
-  const pendingDir = getPendingDir(teamName)
-  const resolvedDir = getResolvedDir(teamName)
-
-  for (const dir of [permDir, pendingDir, resolvedDir]) {
-    await mkdir(dir, { recursive: true })
-  }
-}
-
-/**
- * Get the path to a pending request file
- */
-function getPendingRequestPath(teamName: string, requestId: string): string {
-  return join(getPendingDir(teamName), `${requestId}.json`)
-}
-
-/**
- * Get the path to a resolved request file
- */
-function getResolvedRequestPath(teamName: string, requestId: string): string {
-  return join(getResolvedDir(teamName), `${requestId}.json`)
-}
-
 /**
  * Generate a unique request ID
  */
@@ -206,375 +142,6 @@ export function createPermissionRequest(params: {
   }
 }
 
-/**
- * Write a permission request to the pending directory with file locking
- * Called by worker agents when they need permission approval from the leader
- *
- * @returns The written request
- */
-export async function writePermissionRequest(
-  request: SwarmPermissionRequest,
-): Promise<SwarmPermissionRequest> {
-  await ensurePermissionDirsAsync(request.teamName)
-
-  const pendingPath = getPendingRequestPath(request.teamName, request.id)
-  const lockDir = getPendingDir(request.teamName)
-
-  // Create a directory-level lock file for atomic writes
-  const lockFilePath = join(lockDir, '.lock')
-  await writeFile(lockFilePath, '', 'utf-8')
-
-  let release: (() => Promise<void>) | undefined
-  try {
-    release = await lockfile.lock(lockFilePath)
-
-    // Write the request file
-    await writeFile(pendingPath, jsonStringify(request, null, 2), 'utf-8')
-
-    logForDebugging(
-      `[PermissionSync] Wrote pending request ${request.id} from ${request.workerName} for ${request.toolName}`,
-    )
-
-    return request
-  } catch (error) {
-    logForDebugging(
-      `[PermissionSync] Failed to write permission request: ${error}`,
-    )
-    logError(error)
-    throw error
-  } finally {
-    if (release) {
-      await release()
-    }
-  }
-}
-
-/**
- * Read all pending permission requests for a team
- * Called by the team leader to see what requests need attention
- */
-export async function readPendingPermissions(
-  teamName?: string,
-): Promise<SwarmPermissionRequest[]> {
-  const team = teamName || getTeamName()
-  if (!team) {
-    logForDebugging('[PermissionSync] No team name available')
-    return []
-  }
-
-  const pendingDir = getPendingDir(team)
-
-  let files: string[]
-  try {
-    files = await readdir(pendingDir)
-  } catch (e: unknown) {
-    const code = getErrnoCode(e)
-    if (code === 'ENOENT') {
-      return []
-    }
-    logForDebugging(`[PermissionSync] Failed to read pending requests: ${e}`)
-    logError(e)
-    return []
-  }
-
-  const jsonFiles = files.filter(f => f.endsWith('.json') && f !== '.lock')
-
-  const results = await Promise.all(
-    jsonFiles.map(async file => {
-      const filePath = join(pendingDir, file)
-      try {
-        const content = await readFile(filePath, 'utf-8')
-        const parsed = SwarmPermissionRequestSchema().safeParse(
-          jsonParse(content),
-        )
-        if (parsed.success) {
-          return parsed.data
-        }
-        logForDebugging(
-          `[PermissionSync] Invalid request file ${file}: ${parsed.error.message}`,
-        )
-        return null
-      } catch (err) {
-        logForDebugging(
-          `[PermissionSync] Failed to read request file ${file}: ${err}`,
-        )
-        return null
-      }
-    }),
-  )
-
-  const requests = results.filter(r => r !== null)
-
-  // Sort by creation time (oldest first)
-  requests.sort((a, b) => a.createdAt - b.createdAt)
-
-  return requests
-}
-
-/**
- * Read a resolved permission request by ID
- * Called by workers to check if their request has been resolved
- *
- * @returns The resolved request, or null if not yet resolved
- */
-export async function readResolvedPermission(
-  requestId: string,
-  teamName?: string,
-): Promise<SwarmPermissionRequest | null> {
-  const team = teamName || getTeamName()
-  if (!team) {
-    return null
-  }
-
-  const resolvedPath = getResolvedRequestPath(team, requestId)
-
-  try {
-    const content = await readFile(resolvedPath, 'utf-8')
-    const parsed = SwarmPermissionRequestSchema().safeParse(jsonParse(content))
-    if (parsed.success) {
-      return parsed.data
-    }
-    logForDebugging(
-      `[PermissionSync] Invalid resolved request ${requestId}: ${parsed.error.message}`,
-    )
-    return null
-  } catch (e: unknown) {
-    const code = getErrnoCode(e)
-    if (code === 'ENOENT') {
-      return null
-    }
-    logForDebugging(
-      `[PermissionSync] Failed to read resolved request ${requestId}: ${e}`,
-    )
-    logError(e)
-    return null
-  }
-}
-
-/**
- * Resolve a permission request
- * Called by the team leader (or worker in self-resolution cases)
- *
- * Writes the resolution to resolved/, removes from pending/
- */
-export async function resolvePermission(
-  requestId: string,
-  resolution: PermissionResolution,
-  teamName?: string,
-): Promise<boolean> {
-  const team = teamName || getTeamName()
-  if (!team) {
-    logForDebugging('[PermissionSync] No team name available')
-    return false
-  }
-
-  await ensurePermissionDirsAsync(team)
-
-  const pendingPath = getPendingRequestPath(team, requestId)
-  const resolvedPath = getResolvedRequestPath(team, requestId)
-  const lockFilePath = join(getPendingDir(team), '.lock')
-
-  await writeFile(lockFilePath, '', 'utf-8')
-
-  let release: (() => Promise<void>) | undefined
-  try {
-    release = await lockfile.lock(lockFilePath)
-
-    // Read the pending request
-    let content: string
-    try {
-      content = await readFile(pendingPath, 'utf-8')
-    } catch (e: unknown) {
-      const code = getErrnoCode(e)
-      if (code === 'ENOENT') {
-        logForDebugging(
-          `[PermissionSync] Pending request not found: ${requestId}`,
-        )
-        return false
-      }
-      throw e
-    }
-
-    const parsed = SwarmPermissionRequestSchema().safeParse(jsonParse(content))
-    if (!parsed.success) {
-      logForDebugging(
-        `[PermissionSync] Invalid pending request ${requestId}: ${parsed.error.message}`,
-      )
-      return false
-    }
-
-    const request = parsed.data
-
-    // Update the request with resolution data
-    const resolvedRequest: SwarmPermissionRequest = {
-      ...request,
-      status: resolution.decision === 'approved' ? 'approved' : 'rejected',
-      resolvedBy: resolution.resolvedBy,
-      resolvedAt: Date.now(),
-      feedback: resolution.feedback,
-      updatedInput: resolution.updatedInput,
-      permissionUpdates: resolution.permissionUpdates,
-    }
-
-    // Write to resolved directory
-    await writeFile(
-      resolvedPath,
-      jsonStringify(resolvedRequest, null, 2),
-      'utf-8',
-    )
-
-    // Remove from pending directory
-    await unlink(pendingPath)
-
-    logForDebugging(
-      `[PermissionSync] Resolved request ${requestId} with ${resolution.decision}`,
-    )
-
-    return true
-  } catch (error) {
-    logForDebugging(`[PermissionSync] Failed to resolve request: ${error}`)
-    logError(error)
-    return false
-  } finally {
-    if (release) {
-      await release()
-    }
-  }
-}
-
-/**
- * Clean up old resolved permission files
- * Called periodically to prevent file accumulation
- *
- * @param teamName - Team name
- * @param maxAgeMs - Maximum age in milliseconds (default: 1 hour)
- */
-export async function cleanupOldResolutions(
-  teamName?: string,
-  maxAgeMs = 3600000,
-): Promise<number> {
-  const team = teamName || getTeamName()
-  if (!team) {
-    return 0
-  }
-
-  const resolvedDir = getResolvedDir(team)
-
-  let files: string[]
-  try {
-    files = await readdir(resolvedDir)
-  } catch (e: unknown) {
-    const code = getErrnoCode(e)
-    if (code === 'ENOENT') {
-      return 0
-    }
-    logForDebugging(`[PermissionSync] Failed to cleanup resolutions: ${e}`)
-    logError(e)
-    return 0
-  }
-
-  const now = Date.now()
-  const jsonFiles = files.filter(f => f.endsWith('.json'))
-
-  const cleanupResults = await Promise.all(
-    jsonFiles.map(async file => {
-      const filePath = join(resolvedDir, file)
-      try {
-        const content = await readFile(filePath, 'utf-8')
-        const request = jsonParse(content) as SwarmPermissionRequest
-
-        // Check if the resolution is old enough to clean up
-        // Use >= to handle edge case where maxAgeMs is 0 (clean up everything)
-        const resolvedAt = request.resolvedAt || request.createdAt
-        if (now - resolvedAt >= maxAgeMs) {
-          await unlink(filePath)
-          logForDebugging(`[PermissionSync] Cleaned up old resolution: ${file}`)
-          return 1
-        }
-        return 0
-      } catch {
-        // If we can't parse it, clean it up anyway
-        try {
-          await unlink(filePath)
-          return 1
-        } catch {
-          // Ignore deletion errors
-          return 0
-        }
-      }
-    }),
-  )
-
-  const cleanedCount = cleanupResults.reduce<number>((sum, n) => sum + n, 0)
-
-  if (cleanedCount > 0) {
-    logForDebugging(
-      `[PermissionSync] Cleaned up ${cleanedCount} old resolutions`,
-    )
-  }
-
-  return cleanedCount
-}
-
-/**
- * Legacy response type for worker polling
- * Used for backward compatibility with worker integration code
- */
-export type PermissionResponse = {
-  /** ID of the request this responds to */
-  requestId: string
-  /** Decision: approved or denied */
-  decision: 'approved' | 'denied'
-  /** Timestamp when response was created */
-  timestamp: string
-  /** Optional feedback message if denied */
-  feedback?: string
-  /** Optional updated input if the resolver modified it */
-  updatedInput?: Record<string, unknown>
-  /** Permission updates to apply (e.g., "always allow" rules) */
-  permissionUpdates?: unknown[]
-}
-
-/**
- * Poll for a permission response (worker-side convenience function)
- * Converts the resolved request into a simpler response format
- *
- * @returns The permission response, or null if not yet resolved
- */
-export async function pollForResponse(
-  requestId: string,
-  _agentName?: string,
-  teamName?: string,
-): Promise<PermissionResponse | null> {
-  const resolved = await readResolvedPermission(requestId, teamName)
-  if (!resolved) {
-    return null
-  }
-
-  return {
-    requestId: resolved.id,
-    decision: resolved.status === 'approved' ? 'approved' : 'denied',
-    timestamp: resolved.resolvedAt
-      ? new Date(resolved.resolvedAt).toISOString()
-      : new Date(resolved.createdAt).toISOString(),
-    feedback: resolved.feedback,
-    updatedInput: resolved.updatedInput,
-    permissionUpdates: resolved.permissionUpdates,
-  }
-}
-
-/**
- * Remove a worker's response after processing
- * This is an alias for deleteResolvedPermission for backward compatibility
- */
-export async function removeWorkerResponse(
-  requestId: string,
-  _agentName?: string,
-  teamName?: string,
-): Promise<void> {
-  await deleteResolvedPermission(requestId, teamName)
-}
-
 /**
  * Check if the current agent is a team leader
  */
@@ -600,46 +167,6 @@ export function isSwarmWorker(): boolean {
   return !!teamName && !!agentId && !isTeamLeader()
 }
 
-/**
- * Delete a resolved permission file
- * Called after a worker has processed the resolution
- */
-export async function deleteResolvedPermission(
-  requestId: string,
-  teamName?: string,
-): Promise<boolean> {
-  const team = teamName || getTeamName()
-  if (!team) {
-    return false
-  }
-
-  const resolvedPath = getResolvedRequestPath(team, requestId)
-
-  try {
-    await unlink(resolvedPath)
-    logForDebugging(
-      `[PermissionSync] Deleted resolved permission: ${requestId}`,
-    )
-    return true
-  } catch (e: unknown) {
-    const code = getErrnoCode(e)
-    if (code === 'ENOENT') {
-      return false
-    }
-    logForDebugging(
-      `[PermissionSync] Failed to delete resolved permission: ${e}`,
-    )
-    logError(e)
-    return false
-  }
-}
-
-/**
- * Submit a permission request (alias for writePermissionRequest)
- * Provided for backward compatibility with worker integration code
- */
-export const submitPermissionRequest = writePermissionRequest
-
 // ============================================================================
 // Mailbox-Based Permission System
 // ============================================================================

src/utils/swarm/spawnInProcess.ts

@@ -35,11 +35,6 @@ import {
   STOPPED_DISPLAY_MS,
 } from '../task/framework.js'
 import { createTeammateContext } from '../teammateContext.js'
-import {
-  isPerfettoTracingEnabled,
-  registerAgent as registerPerfettoAgent,
-  unregisterAgent as unregisterPerfettoAgent,
-} from '../telemetry/perfettoTracing.js'
 import { removeMemberByAgentId } from './teamHelpers.js'
 
 type SetAppStateFn = (updater: (prev: AppState) => AppState) => void
@@ -146,11 +141,6 @@ export async function spawnInProcessTeammate(
       abortController,
     })
 
-    // Register agent in Perfetto trace for hierarchy visualization
-    if (isPerfettoTracingEnabled()) {
-      registerPerfettoAgent(agentId, name, parentSessionId)
-    }
-
     // Create task state
     const description = `${name}: ${prompt.substring(0, 50)}${prompt.length > 50 ? '...' : ''}`
 
@@ -319,10 +309,5 @@ export function killInProcessTeammate(
     )
   }
 
-  // Release perfetto agent registry entry
-  if (agentId) {
-    unregisterPerfettoAgent(agentId)
-  }
-
   return killed
 }

src/utils/swarm/teamHelpers.ts

@@ -66,7 +66,6 @@ export type TeamFile = {
   description?: string
   createdAt: number
   leadAgentId: string
-  leadSessionId?: string // Actual session UUID of the leader (for discovery)
   hiddenPaneIds?: string[] // Pane IDs that are currently hidden from the UI
   teamAllowedPaths?: TeamAllowedPath[] // Paths all teammates can edit without asking
   members: Array<{
@@ -74,15 +73,13 @@ export type TeamFile = {
     name: string
     agentType?: string
     model?: string
-    prompt?: string
+    prompt?: string // Legacy field; stripped from persisted configs
     color?: string
     planModeRequired?: boolean
     joinedAt: number
     tmuxPaneId: string
     cwd: string
     worktreePath?: string
-    sessionId?: string
-    subscriptions: string[]
     backendType?: BackendType
     isActive?: boolean // false when idle, undefined/true when active
     mode?: PermissionMode // Current permission mode for this teammate
@@ -123,6 +120,42 @@ export function getTeamFilePath(teamName: string): string {
   return join(getTeamDir(teamName), 'config.json')
 }
 
+function sanitizeTeamFileForPersistence(teamFile: TeamFile): TeamFile {
+  return {
+    name: teamFile.name,
+    ...(teamFile.description ? { description: teamFile.description } : {}),
+    createdAt: teamFile.createdAt,
+    leadAgentId: teamFile.leadAgentId,
+    ...(teamFile.hiddenPaneIds && teamFile.hiddenPaneIds.length > 0
+      ? { hiddenPaneIds: [...teamFile.hiddenPaneIds] }
+      : {}),
+    ...(teamFile.teamAllowedPaths && teamFile.teamAllowedPaths.length > 0
+      ? {
+          teamAllowedPaths: teamFile.teamAllowedPaths.map(path => ({
+            ...path,
+          })),
+        }
+      : {}),
+    members: teamFile.members.map(member => ({
+      agentId: member.agentId,
+      name: member.name,
+      ...(member.agentType ? { agentType: member.agentType } : {}),
+      ...(member.model ? { model: member.model } : {}),
+      ...(member.color ? { color: member.color } : {}),
+      ...(member.planModeRequired !== undefined
+        ? { planModeRequired: member.planModeRequired }
+        : {}),
+      joinedAt: member.joinedAt,
+      tmuxPaneId: member.tmuxPaneId,
+      cwd: member.cwd,
+      ...(member.worktreePath ? { worktreePath: member.worktreePath } : {}),
+      ...(member.backendType ? { backendType: member.backendType } : {}),
+      ...(member.isActive !== undefined ? { isActive: member.isActive } : {}),
+      ...(member.mode ? { mode: member.mode } : {}),
+    })),
+  }
+}
+
 /**
  * Reads a team file by name (sync — for sync contexts like React render paths)
  * @internal Exported for team discovery UI
@@ -131,7 +164,7 @@ export function getTeamFilePath(teamName: string): string {
 export function readTeamFile(teamName: string): TeamFile | null {
   try {
     const content = readFileSync(getTeamFilePath(teamName), 'utf-8')
-    return jsonParse(content) as TeamFile
+    return sanitizeTeamFileForPersistence(jsonParse(content) as TeamFile)
   } catch (e) {
     if (getErrnoCode(e) === 'ENOENT') return null
     logForDebugging(
@@ -149,7 +182,7 @@ export async function readTeamFileAsync(
 ): Promise<TeamFile | null> {
   try {
     const content = await readFile(getTeamFilePath(teamName), 'utf-8')
-    return jsonParse(content) as TeamFile
+    return sanitizeTeamFileForPersistence(jsonParse(content) as TeamFile)
   } catch (e) {
     if (getErrnoCode(e) === 'ENOENT') return null
     logForDebugging(
@@ -166,7 +199,10 @@ export async function readTeamFileAsync(
 function writeTeamFile(teamName: string, teamFile: TeamFile): void {
   const teamDir = getTeamDir(teamName)
   mkdirSync(teamDir, { recursive: true })
-  writeFileSync(getTeamFilePath(teamName), jsonStringify(teamFile, null, 2))
+  writeFileSync(
+    getTeamFilePath(teamName),
+    jsonStringify(sanitizeTeamFileForPersistence(teamFile), null, 2),
+  )
 }
 
 /**
@@ -178,7 +214,10 @@ export async function writeTeamFileAsync(
 ): Promise<void> {
   const teamDir = getTeamDir(teamName)
   await mkdir(teamDir, { recursive: true })
-  await writeFile(getTeamFilePath(teamName), jsonStringify(teamFile, null, 2))
+  await writeFile(
+    getTeamFilePath(teamName),
+    jsonStringify(sanitizeTeamFileForPersistence(teamFile), null, 2),
+  )
 }
 
 /**

src/utils/teamDiscovery.ts

@@ -20,7 +20,6 @@ export type TeammateStatus = {
   agentId: string
   agentType?: string
   model?: string
-  prompt?: string
   status: 'running' | 'idle' | 'unknown'
   color?: string
   idleSince?: string // ISO timestamp from idle notification
@@ -60,7 +59,6 @@ export function getTeammateStatuses(teamName: string): TeammateStatus[] {
       agentId: member.agentId,
       agentType: member.agentType,
       model: member.model,
-      prompt: member.prompt,
       status,
       color: member.color,
       tmuxPaneId: member.tmuxPaneId,

src/utils/teammateMailbox.ts

@@ -15,7 +15,6 @@ import { PermissionModeSchema } from '../entrypoints/sdk/coreSchemas.js'
 import { SEND_MESSAGE_TOOL_NAME } from '../tools/SendMessageTool/constants.js'
 import type { Message } from '../types/message.js'
 import { generateRequestId } from './agentId.js'
-import { count } from './array.js'
 import { logForDebugging } from './debug.js'
 import { getTeamsDir } from './envUtils.js'
 import { getErrnoCode } from './errors.js'
@@ -58,11 +57,7 @@ export function getInboxPath(agentName: string, teamName?: string): string {
   const safeTeam = sanitizePathComponent(team)
   const safeAgentName = sanitizePathComponent(agentName)
   const inboxDir = join(getTeamsDir(), safeTeam, 'inboxes')
-  const fullPath = join(inboxDir, `${safeAgentName}.json`)
-  logForDebugging(
-    `[TeammateMailbox] getInboxPath: agent=${agentName}, team=${team}, fullPath=${fullPath}`,
-  )
-  return fullPath
+  return join(inboxDir, `${safeAgentName}.json`)
 }
 
 /**
@@ -73,7 +68,7 @@ async function ensureInboxDir(teamName?: string): Promise<void> {
   const safeTeam = sanitizePathComponent(team)
   const inboxDir = join(getTeamsDir(), safeTeam, 'inboxes')
   await mkdir(inboxDir, { recursive: true })
-  logForDebugging(`[TeammateMailbox] Ensured inbox directory: ${inboxDir}`)
+  logForDebugging('[TeammateMailbox] Ensured inbox directory')
 }
 
 /**
@@ -86,7 +81,6 @@ export async function readMailbox(
   teamName?: string,
 ): Promise<TeammateMessage[]> {
   const inboxPath = getInboxPath(agentName, teamName)
-  logForDebugging(`[TeammateMailbox] readMailbox: path=${inboxPath}`)
 
   try {
     const content = await readFile(inboxPath, 'utf-8')
@@ -101,7 +95,7 @@ export async function readMailbox(
       logForDebugging(`[TeammateMailbox] readMailbox: file does not exist`)
       return []
     }
-    logForDebugging(`Failed to read inbox for ${agentName}: ${error}`)
+    logForDebugging(`[TeammateMailbox] Failed to read inbox for ${agentName}`)
     logError(error)
     return []
   }
@@ -142,7 +136,7 @@ export async function writeToMailbox(
   const lockFilePath = `${inboxPath}.lock`
 
   logForDebugging(
-    `[TeammateMailbox] writeToMailbox: recipient=${recipientName}, from=${message.from}, path=${inboxPath}`,
+    `[TeammateMailbox] writeToMailbox: recipient=${recipientName}, from=${message.from}`,
   )
 
   // Ensure the inbox file exists before locking (proper-lockfile requires the file to exist)
@@ -153,7 +147,7 @@ export async function writeToMailbox(
     const code = getErrnoCode(error)
     if (code !== 'EEXIST') {
       logForDebugging(
-        `[TeammateMailbox] writeToMailbox: failed to create inbox file: ${error}`,
+        `[TeammateMailbox] writeToMailbox: failed to create inbox file`,
       )
       logError(error)
       return
@@ -182,7 +176,9 @@ export async function writeToMailbox(
       `[TeammateMailbox] Wrote message to ${recipientName}'s inbox from ${message.from}`,
     )
   } catch (error) {
-    logForDebugging(`Failed to write to inbox for ${recipientName}: ${error}`)
+    logForDebugging(
+      `[TeammateMailbox] Failed to write to inbox for ${recipientName}`,
+    )
     logError(error)
   } finally {
     if (release) {
@@ -192,8 +188,8 @@ export async function writeToMailbox(
 }
 
 /**
- * Mark a specific message in a teammate's inbox as read by index
- * Uses file locking to prevent race conditions
+ * Remove a specific processed message from a teammate's inbox by index.
+ * Uses file locking to prevent race conditions.
  * @param agentName - The agent name to mark message as read for
  * @param teamName - Optional team name
  * @param messageIndex - Index of the message to mark as read
@@ -205,7 +201,7 @@ export async function markMessageAsReadByIndex(
 ): Promise<void> {
   const inboxPath = getInboxPath(agentName, teamName)
   logForDebugging(
-    `[TeammateMailbox] markMessageAsReadByIndex called: agentName=${agentName}, teamName=${teamName}, index=${messageIndex}, path=${inboxPath}`,
+    `[TeammateMailbox] markMessageAsReadByIndex called: agentName=${agentName}, index=${messageIndex}`,
   )
 
   const lockFilePath = `${inboxPath}.lock`
@@ -242,22 +238,26 @@ export async function markMessageAsReadByIndex(
       return
     }
 
-    messages[messageIndex] = { ...message, read: true }
+    const updatedMessages = messages.filter(
+      (currentMessage, index) => index !== messageIndex && !currentMessage.read,
+    )
 
-    await writeFile(inboxPath, jsonStringify(messages, null, 2), 'utf-8')
+    await writeFile(
+      inboxPath,
+      jsonStringify(updatedMessages, null, 2),
+      'utf-8',
+    )
     logForDebugging(
-      `[TeammateMailbox] markMessageAsReadByIndex: marked message at index ${messageIndex} as read`,
+      `[TeammateMailbox] markMessageAsReadByIndex: removed message at index ${messageIndex} from inbox`,
     )
   } catch (error) {
     const code = getErrnoCode(error)
     if (code === 'ENOENT') {
-      logForDebugging(
-        `[TeammateMailbox] markMessageAsReadByIndex: file does not exist at ${inboxPath}`,
-      )
+      logForDebugging(`[TeammateMailbox] markMessageAsReadByIndex: file missing`)
       return
     }
     logForDebugging(
-      `[TeammateMailbox] markMessageAsReadByIndex FAILED for ${agentName}: ${error}`,
+      `[TeammateMailbox] markMessageAsReadByIndex failed for ${agentName}`,
     )
     logError(error)
   } finally {
@@ -270,77 +270,6 @@ export async function markMessageAsReadByIndex(
   }
 }
 
-/**
- * Mark all messages in a teammate's inbox as read
- * Uses file locking to prevent race conditions
- * @param agentName - The agent name to mark messages as read for
- * @param teamName - Optional team name
- */
-export async function markMessagesAsRead(
-  agentName: string,
-  teamName?: string,
-): Promise<void> {
-  const inboxPath = getInboxPath(agentName, teamName)
-  logForDebugging(
-    `[TeammateMailbox] markMessagesAsRead called: agentName=${agentName}, teamName=${teamName}, path=${inboxPath}`,
-  )
-
-  const lockFilePath = `${inboxPath}.lock`
-
-  let release: (() => Promise<void>) | undefined
-  try {
-    logForDebugging(`[TeammateMailbox] markMessagesAsRead: acquiring lock...`)
-    release = await lockfile.lock(inboxPath, {
-      lockfilePath: lockFilePath,
-      ...LOCK_OPTIONS,
-    })
-    logForDebugging(`[TeammateMailbox] markMessagesAsRead: lock acquired`)
-
-    // Re-read messages after acquiring lock to get the latest state
-    const messages = await readMailbox(agentName, teamName)
-    logForDebugging(
-      `[TeammateMailbox] markMessagesAsRead: read ${messages.length} messages after lock`,
-    )
-
-    if (messages.length === 0) {
-      logForDebugging(
-        `[TeammateMailbox] markMessagesAsRead: no messages to mark`,
-      )
-      return
-    }
-
-    const unreadCount = count(messages, m => !m.read)
-    logForDebugging(
-      `[TeammateMailbox] markMessagesAsRead: ${unreadCount} unread of ${messages.length} total`,
-    )
-
-    // messages comes from jsonParse — fresh, unshared objects safe to mutate
-    for (const m of messages) m.read = true
-
-    await writeFile(inboxPath, jsonStringify(messages, null, 2), 'utf-8')
-    logForDebugging(
-      `[TeammateMailbox] markMessagesAsRead: WROTE ${unreadCount} message(s) as read to ${inboxPath}`,
-    )
-  } catch (error) {
-    const code = getErrnoCode(error)
-    if (code === 'ENOENT') {
-      logForDebugging(
-        `[TeammateMailbox] markMessagesAsRead: file does not exist at ${inboxPath}`,
-      )
-      return
-    }
-    logForDebugging(
-      `[TeammateMailbox] markMessagesAsRead FAILED for ${agentName}: ${error}`,
-    )
-    logError(error)
-  } finally {
-    if (release) {
-      await release()
-      logForDebugging(`[TeammateMailbox] markMessagesAsRead: lock released`)
-    }
-  }
-}
-
 /**
  * Clear a teammate's inbox (delete all messages)
  * @param agentName - The agent name to clear inbox for
@@ -362,7 +291,7 @@ export async function clearMailbox(
     if (code === 'ENOENT') {
       return
     }
-    logForDebugging(`Failed to clear inbox for ${agentName}: ${error}`)
+    logForDebugging(`[TeammateMailbox] Failed to clear inbox for ${agentName}`)
     logError(error)
   }
 }
@@ -1095,8 +1024,8 @@ export function isStructuredProtocolMessage(messageText: string): boolean {
 }
 
 /**
- * Marks only messages matching a predicate as read, leaving others unread.
- * Uses the same file-locking mechanism as markMessagesAsRead.
+ * Removes only messages matching a predicate, leaving the rest unread.
+ * Uses the same file-locking mechanism as the other mailbox update helpers.
  */
 export async function markMessagesAsReadByPredicate(
   agentName: string,
@@ -1119,8 +1048,8 @@ export async function markMessagesAsReadByPredicate(
       return
     }
 
-    const updatedMessages = messages.map(m =>
-      !m.read && predicate(m) ? { ...m, read: true } : m,
+    const updatedMessages = messages.filter(
+      m => !m.read && !predicate(m),
     )
 
     await writeFile(inboxPath, jsonStringify(updatedMessages, null, 2), 'utf-8')
@@ -1174,7 +1103,7 @@ export function getLastPeerDmSummary(messages: Message[]): string | undefined {
         const summary =
           'summary' in block.input && typeof block.input.summary === 'string'
             ? block.input.summary
-            : block.input.message.slice(0, 80)
+            : 'sent update'
         return `[to ${to}] ${summary}`
       }
     }

src/utils/telemetry/betaSessionTracing.ts

@@ -1,491 +0,0 @@
-/**
- * Beta Session Tracing for Claude Code
- *
- * This module contains beta tracing features enabled when
- * ENABLE_BETA_TRACING_DETAILED=1 and BETA_TRACING_ENDPOINT are set.
- *
- * For external users, tracing is enabled in SDK/headless mode, or in
- * interactive mode when the org is allowlisted via the
- * tengu_trace_lantern GrowthBook gate.
- * For ant users, tracing is enabled in all modes.
- *
- * Visibility Rules:
- * | Content          | External | Ant  |
- * |------------------|----------|------|
- * | System prompts   | ✅                  | ✅   |
- * | Model output     | ✅                  | ✅   |
- * | Thinking output  | ❌                  | ✅   |
- * | Tools            | ✅                  | ✅   |
- * | new_context      | ✅                  | ✅   |
- *
- * Features:
- * - Per-agent message tracking with hash-based deduplication
- * - System prompt logging (once per unique hash)
- * - Hook execution spans
- * - Detailed new_context attributes for LLM requests
- */
-
-import type { Span } from '@opentelemetry/api'
-import { createHash } from 'crypto'
-import { getIsNonInteractiveSession } from '../../bootstrap/state.js'
-import { getFeatureValue_CACHED_MAY_BE_STALE } from '../../services/analytics/growthbook.js'
-import { sanitizeToolNameForAnalytics } from '../../services/analytics/metadata.js'
-import type { AssistantMessage, UserMessage } from '../../types/message.js'
-import { isEnvTruthy } from '../envUtils.js'
-import { jsonParse, jsonStringify } from '../slowOperations.js'
-import { logOTelEvent } from './events.js'
-
-// Message type for API calls (UserMessage or AssistantMessage)
-type APIMessage = UserMessage | AssistantMessage
-
-/**
- * Track hashes we've already logged this session (system prompts, tools, etc).
- *
- * WHY: System prompts and tool schemas are large and rarely change within a session.
- * Sending full content on every request would be wasteful. Instead, we hash and
- * only log the full content once per unique hash.
- */
-const seenHashes = new Set<string>()
-
-/**
- * Track the last reported message hash per querySource (agent) for incremental context.
- *
- * WHY: When debugging traces, we want to see what NEW information was added each turn,
- * not the entire conversation history (which can be huge). By tracking the last message
- * we reported per agent, we can compute and send only the delta (new messages since
- * the last request). This is tracked per-agent (querySource) because different agents
- * (main thread, subagents, warmup requests) have independent conversation contexts.
- */
-const lastReportedMessageHash = new Map<string, string>()
-
-/**
- * Clear tracking state after compaction.
- * Old hashes are irrelevant once messages have been replaced.
- */
-export function clearBetaTracingState(): void {
-  seenHashes.clear()
-  lastReportedMessageHash.clear()
-}
-
-const MAX_CONTENT_SIZE = 60 * 1024 // 60KB (Honeycomb limit is 64KB, staying safe)
-
-/**
- * Check if beta detailed tracing is enabled.
- * - Requires ENABLE_BETA_TRACING_DETAILED=1 and BETA_TRACING_ENDPOINT
- * - For external users, enabled in SDK/headless mode OR when org is
- *   allowlisted via the tengu_trace_lantern GrowthBook gate
- */
-export function isBetaTracingEnabled(): boolean {
-  const baseEnabled =
-    isEnvTruthy(process.env.ENABLE_BETA_TRACING_DETAILED) &&
-    Boolean(process.env.BETA_TRACING_ENDPOINT)
-
-  if (!baseEnabled) {
-    return false
-  }
-
-  // For external users, enable in SDK/headless mode OR when org is allowlisted.
-  // Gate reads from disk cache, so first run after allowlisting returns false;
-  // works from second run onward (same behavior as enhanced_telemetry_beta).
-  if (process.env.USER_TYPE !== 'ant') {
-    return (
-      getIsNonInteractiveSession() ||
-      getFeatureValue_CACHED_MAY_BE_STALE('tengu_trace_lantern', false)
-    )
-  }
-
-  return true
-}
-
-/**
- * Truncate content to fit within Honeycomb limits.
- */
-export function truncateContent(
-  content: string,
-  maxSize: number = MAX_CONTENT_SIZE,
-): { content: string; truncated: boolean } {
-  if (content.length <= maxSize) {
-    return { content, truncated: false }
-  }
-
-  return {
-    content:
-      content.slice(0, maxSize) +
-      '\n\n[TRUNCATED - Content exceeds 60KB limit]',
-    truncated: true,
-  }
-}
-
-/**
- * Generate a short hash (first 12 hex chars of SHA-256).
- */
-function shortHash(content: string): string {
-  return createHash('sha256').update(content).digest('hex').slice(0, 12)
-}
-
-/**
- * Generate a hash for a system prompt.
- */
-function hashSystemPrompt(systemPrompt: string): string {
-  return `sp_${shortHash(systemPrompt)}`
-}
-
-/**
- * Generate a hash for a message based on its content.
- */
-function hashMessage(message: APIMessage): string {
-  const content = jsonStringify(message.message.content)
-  return `msg_${shortHash(content)}`
-}
-
-// Regex to detect content wrapped in <system-reminder> tags
-const SYSTEM_REMINDER_REGEX =
-  /^<system-reminder>\n?([\s\S]*?)\n?<\/system-reminder>$/
-
-/**
- * Check if text is entirely a system reminder (wrapped in <system-reminder> tags).
- * Returns the inner content if it is, null otherwise.
- */
-function extractSystemReminderContent(text: string): string | null {
-  const match = text.trim().match(SYSTEM_REMINDER_REGEX)
-  return match && match[1] ? match[1].trim() : null
-}
-
-/**
- * Result of formatting messages - separates regular content from system reminders.
- */
-interface FormattedMessages {
-  contextParts: string[]
-  systemReminders: string[]
-}
-
-/**
- * Format user messages for new_context display, separating system reminders.
- * Only handles user messages (assistant messages are filtered out before this is called).
- */
-function formatMessagesForContext(messages: UserMessage[]): FormattedMessages {
-  const contextParts: string[] = []
-  const systemReminders: string[] = []
-
-  for (const message of messages) {
-    const content = message.message.content
-    if (typeof content === 'string') {
-      const reminderContent = extractSystemReminderContent(content)
-      if (reminderContent) {
-        systemReminders.push(reminderContent)
-      } else {
-        contextParts.push(`[USER]\n${content}`)
-      }
-    } else if (Array.isArray(content)) {
-      for (const block of content) {
-        if (block.type === 'text') {
-          const reminderContent = extractSystemReminderContent(block.text)
-          if (reminderContent) {
-            systemReminders.push(reminderContent)
-          } else {
-            contextParts.push(`[USER]\n${block.text}`)
-          }
-        } else if (block.type === 'tool_result') {
-          const resultContent =
-            typeof block.content === 'string'
-              ? block.content
-              : jsonStringify(block.content)
-          // Tool results can also contain system reminders (e.g., malware warning)
-          const reminderContent = extractSystemReminderContent(resultContent)
-          if (reminderContent) {
-            systemReminders.push(reminderContent)
-          } else {
-            contextParts.push(
-              `[TOOL RESULT: ${block.tool_use_id}]\n${resultContent}`,
-            )
-          }
-        }
-      }
-    }
-  }
-
-  return { contextParts, systemReminders }
-}
-
-export interface LLMRequestNewContext {
-  /** System prompt (typically only on first request or if changed) */
-  systemPrompt?: string
-  /** Query source identifying the agent/purpose (e.g., 'repl_main_thread', 'agent:builtin') */
-  querySource?: string
-  /** Tool schemas sent with the request */
-  tools?: string
-}
-
-/**
- * Add beta attributes to an interaction span.
- * Adds new_context with the user prompt.
- */
-export function addBetaInteractionAttributes(
-  span: Span,
-  userPrompt: string,
-): void {
-  if (!isBetaTracingEnabled()) {
-    return
-  }
-
-  const { content: truncatedPrompt, truncated } = truncateContent(
-    `[USER PROMPT]\n${userPrompt}`,
-  )
-  span.setAttributes({
-    new_context: truncatedPrompt,
-    ...(truncated && {
-      new_context_truncated: true,
-      new_context_original_length: userPrompt.length,
-    }),
-  })
-}
-
-/**
- * Add beta attributes to an LLM request span.
- * Handles system prompt logging and new_context computation.
- */
-export function addBetaLLMRequestAttributes(
-  span: Span,
-  newContext?: LLMRequestNewContext,
-  messagesForAPI?: APIMessage[],
-): void {
-  if (!isBetaTracingEnabled()) {
-    return
-  }
-
-  // Add system prompt info to the span
-  if (newContext?.systemPrompt) {
-    const promptHash = hashSystemPrompt(newContext.systemPrompt)
-    const preview = newContext.systemPrompt.slice(0, 500)
-
-    // Always add hash, preview, and length to the span
-    span.setAttribute('system_prompt_hash', promptHash)
-    span.setAttribute('system_prompt_preview', preview)
-    span.setAttribute('system_prompt_length', newContext.systemPrompt.length)
-
-    // Log the full system prompt only once per unique hash this session
-    if (!seenHashes.has(promptHash)) {
-      seenHashes.add(promptHash)
-
-      // Truncate for the log if needed
-      const { content: truncatedPrompt, truncated } = truncateContent(
-        newContext.systemPrompt,
-      )
-
-      void logOTelEvent('system_prompt', {
-        system_prompt_hash: promptHash,
-        system_prompt: truncatedPrompt,
-        system_prompt_length: String(newContext.systemPrompt.length),
-        ...(truncated && { system_prompt_truncated: 'true' }),
-      })
-    }
-  }
-
-  // Add tools info to the span
-  if (newContext?.tools) {
-    try {
-      const toolsArray = jsonParse(newContext.tools) as Record<
-        string,
-        unknown
-      >[]
-
-      // Build array of {name, hash} for each tool
-      const toolsWithHashes = toolsArray.map(tool => {
-        const toolJson = jsonStringify(tool)
-        const toolHash = shortHash(toolJson)
-        return {
-          name: typeof tool.name === 'string' ? tool.name : 'unknown',
-          hash: toolHash,
-          json: toolJson,
-        }
-      })
-
-      // Set span attribute with array of name/hash pairs
-      span.setAttribute(
-        'tools',
-        jsonStringify(
-          toolsWithHashes.map(({ name, hash }) => ({ name, hash })),
-        ),
-      )
-      span.setAttribute('tools_count', toolsWithHashes.length)
-
-      // Log each tool's full description once per unique hash
-      for (const { name, hash, json } of toolsWithHashes) {
-        if (!seenHashes.has(`tool_${hash}`)) {
-          seenHashes.add(`tool_${hash}`)
-
-          const { content: truncatedTool, truncated } = truncateContent(json)
-
-          void logOTelEvent('tool', {
-            tool_name: sanitizeToolNameForAnalytics(name),
-            tool_hash: hash,
-            tool: truncatedTool,
-            ...(truncated && { tool_truncated: 'true' }),
-          })
-        }
-      }
-    } catch {
-      // If parsing fails, log the raw tools string
-      span.setAttribute('tools_parse_error', true)
-    }
-  }
-
-  // Add new_context using hash-based tracking (visible to all users)
-  if (messagesForAPI && messagesForAPI.length > 0 && newContext?.querySource) {
-    const querySource = newContext.querySource
-    const lastHash = lastReportedMessageHash.get(querySource)
-
-    // Find where the last reported message is in the array
-    let startIndex = 0
-    if (lastHash) {
-      for (let i = 0; i < messagesForAPI.length; i++) {
-        const msg = messagesForAPI[i]
-        if (msg && hashMessage(msg) === lastHash) {
-          startIndex = i + 1 // Start after the last reported message
-          break
-        }
-      }
-      // If lastHash not found, startIndex stays 0 (send everything)
-    }
-
-    // Get new messages (filter out assistant messages - we only want user input/tool results)
-    const newMessages = messagesForAPI
-      .slice(startIndex)
-      .filter((m): m is UserMessage => m.type === 'user')
-
-    if (newMessages.length > 0) {
-      // Format new messages, separating system reminders from regular content
-      const { contextParts, systemReminders } =
-        formatMessagesForContext(newMessages)
-
-      // Set new_context (regular user content and tool results)
-      if (contextParts.length > 0) {
-        const fullContext = contextParts.join('\n\n---\n\n')
-        const { content: truncatedContext, truncated } =
-          truncateContent(fullContext)
-
-        span.setAttributes({
-          new_context: truncatedContext,
-          new_context_message_count: newMessages.length,
-          ...(truncated && {
-            new_context_truncated: true,
-            new_context_original_length: fullContext.length,
-          }),
-        })
-      }
-
-      // Set system_reminders as a separate attribute
-      if (systemReminders.length > 0) {
-        const fullReminders = systemReminders.join('\n\n---\n\n')
-        const { content: truncatedReminders, truncated: remindersTruncated } =
-          truncateContent(fullReminders)
-
-        span.setAttributes({
-          system_reminders: truncatedReminders,
-          system_reminders_count: systemReminders.length,
-          ...(remindersTruncated && {
-            system_reminders_truncated: true,
-            system_reminders_original_length: fullReminders.length,
-          }),
-        })
-      }
-
-      // Update last reported hash to the last message in the array
-      const lastMessage = messagesForAPI[messagesForAPI.length - 1]
-      if (lastMessage) {
-        lastReportedMessageHash.set(querySource, hashMessage(lastMessage))
-      }
-    }
-  }
-}
-
-/**
- * Add beta attributes to endLLMRequestSpan.
- * Handles model_output and thinking_output truncation.
- */
-export function addBetaLLMResponseAttributes(
-  endAttributes: Record<string, string | number | boolean>,
-  metadata?: {
-    modelOutput?: string
-    thinkingOutput?: string
-  },
-): void {
-  if (!isBetaTracingEnabled() || !metadata) {
-    return
-  }
-
-  // Add model_output (text content) - visible to all users
-  if (metadata.modelOutput !== undefined) {
-    const { content: modelOutput, truncated: outputTruncated } =
-      truncateContent(metadata.modelOutput)
-    endAttributes['response.model_output'] = modelOutput
-    if (outputTruncated) {
-      endAttributes['response.model_output_truncated'] = true
-      endAttributes['response.model_output_original_length'] =
-        metadata.modelOutput.length
-    }
-  }
-
-  // Add thinking_output - ant-only
-  if (
-    process.env.USER_TYPE === 'ant' &&
-    metadata.thinkingOutput !== undefined
-  ) {
-    const { content: thinkingOutput, truncated: thinkingTruncated } =
-      truncateContent(metadata.thinkingOutput)
-    endAttributes['response.thinking_output'] = thinkingOutput
-    if (thinkingTruncated) {
-      endAttributes['response.thinking_output_truncated'] = true
-      endAttributes['response.thinking_output_original_length'] =
-        metadata.thinkingOutput.length
-    }
-  }
-}
-
-/**
- * Add beta attributes to startToolSpan.
- * Adds tool_input with the serialized tool input.
- */
-export function addBetaToolInputAttributes(
-  span: Span,
-  toolName: string,
-  toolInput: string,
-): void {
-  if (!isBetaTracingEnabled()) {
-    return
-  }
-
-  const { content: truncatedInput, truncated } = truncateContent(
-    `[TOOL INPUT: ${toolName}]\n${toolInput}`,
-  )
-  span.setAttributes({
-    tool_input: truncatedInput,
-    ...(truncated && {
-      tool_input_truncated: true,
-      tool_input_original_length: toolInput.length,
-    }),
-  })
-}
-
-/**
- * Add beta attributes to endToolSpan.
- * Adds new_context with the tool result.
- */
-export function addBetaToolResultAttributes(
-  endAttributes: Record<string, string | number | boolean>,
-  toolName: string | number | boolean,
-  toolResult: string,
-): void {
-  if (!isBetaTracingEnabled()) {
-    return
-  }
-
-  const { content: truncatedResult, truncated } = truncateContent(
-    `[TOOL RESULT: ${toolName}]\n${toolResult}`,
-  )
-  endAttributes['new_context'] = truncatedResult
-  if (truncated) {
-    endAttributes['new_context_truncated'] = true
-    endAttributes['new_context_original_length'] = toolResult.length
-  }
-}

src/utils/telemetry/bigqueryExporter.ts

@@ -1,252 +0,0 @@
-import type { Attributes, HrTime } from '@opentelemetry/api'
-import { type ExportResult, ExportResultCode } from '@opentelemetry/core'
-import {
-  AggregationTemporality,
-  type MetricData,
-  type DataPoint as OTelDataPoint,
-  type PushMetricExporter,
-  type ResourceMetrics,
-} from '@opentelemetry/sdk-metrics'
-import axios from 'axios'
-import { checkMetricsEnabled } from 'src/services/api/metricsOptOut.js'
-import { getIsNonInteractiveSession } from '../../bootstrap/state.js'
-import { getSubscriptionType, isClaudeAISubscriber } from '../auth.js'
-import { checkHasTrustDialogAccepted } from '../config.js'
-import { logForDebugging } from '../debug.js'
-import { errorMessage, toError } from '../errors.js'
-import { getAuthHeaders } from '../http.js'
-import { logError } from '../log.js'
-import { jsonStringify } from '../slowOperations.js'
-import { getClaudeCodeUserAgent } from '../userAgent.js'
-
-type DataPoint = {
-  attributes: Record<string, string>
-  value: number
-  timestamp: string
-}
-
-type Metric = {
-  name: string
-  description?: string
-  unit?: string
-  data_points: DataPoint[]
-}
-
-type InternalMetricsPayload = {
-  resource_attributes: Record<string, string>
-  metrics: Metric[]
-}
-
-export class BigQueryMetricsExporter implements PushMetricExporter {
-  private readonly endpoint: string
-  private readonly timeout: number
-  private pendingExports: Promise<void>[] = []
-  private isShutdown = false
-
-  constructor(options: { timeout?: number } = {}) {
-    const defaultEndpoint = 'https://api.anthropic.com/api/claude_code/metrics'
-
-    if (
-      process.env.USER_TYPE === 'ant' &&
-      process.env.ANT_CLAUDE_CODE_METRICS_ENDPOINT
-    ) {
-      this.endpoint =
-        process.env.ANT_CLAUDE_CODE_METRICS_ENDPOINT +
-        '/api/claude_code/metrics'
-    } else {
-      this.endpoint = defaultEndpoint
-    }
-
-    this.timeout = options.timeout || 5000
-  }
-
-  async export(
-    metrics: ResourceMetrics,
-    resultCallback: (result: ExportResult) => void,
-  ): Promise<void> {
-    if (this.isShutdown) {
-      resultCallback({
-        code: ExportResultCode.FAILED,
-        error: new Error('Exporter has been shutdown'),
-      })
-      return
-    }
-
-    const exportPromise = this.doExport(metrics, resultCallback)
-    this.pendingExports.push(exportPromise)
-
-    // Clean up completed exports
-    void exportPromise.finally(() => {
-      const index = this.pendingExports.indexOf(exportPromise)
-      if (index > -1) {
-        void this.pendingExports.splice(index, 1)
-      }
-    })
-  }
-
-  private async doExport(
-    metrics: ResourceMetrics,
-    resultCallback: (result: ExportResult) => void,
-  ): Promise<void> {
-    try {
-      // Skip if trust not established in interactive mode
-      // This prevents triggering apiKeyHelper before trust dialog
-      const hasTrust =
-        checkHasTrustDialogAccepted() || getIsNonInteractiveSession()
-      if (!hasTrust) {
-        logForDebugging(
-          'BigQuery metrics export: trust not established, skipping',
-        )
-        resultCallback({ code: ExportResultCode.SUCCESS })
-        return
-      }
-
-      // Check organization-level metrics opt-out
-      const metricsStatus = await checkMetricsEnabled()
-      if (!metricsStatus.enabled) {
-        logForDebugging('Metrics export disabled by organization setting')
-        resultCallback({ code: ExportResultCode.SUCCESS })
-        return
-      }
-
-      const payload = this.transformMetricsForInternal(metrics)
-
-      const authResult = getAuthHeaders()
-      if (authResult.error) {
-        logForDebugging(`Metrics export failed: ${authResult.error}`)
-        resultCallback({
-          code: ExportResultCode.FAILED,
-          error: new Error(authResult.error),
-        })
-        return
-      }
-
-      const headers: Record<string, string> = {
-        'Content-Type': 'application/json',
-        'User-Agent': getClaudeCodeUserAgent(),
-        ...authResult.headers,
-      }
-
-      const response = await axios.post(this.endpoint, payload, {
-        timeout: this.timeout,
-        headers,
-      })
-
-      logForDebugging('BigQuery metrics exported successfully')
-      logForDebugging(
-        `BigQuery API Response: ${jsonStringify(response.data, null, 2)}`,
-      )
-      resultCallback({ code: ExportResultCode.SUCCESS })
-    } catch (error) {
-      logForDebugging(`BigQuery metrics export failed: ${errorMessage(error)}`)
-      logError(error)
-      resultCallback({
-        code: ExportResultCode.FAILED,
-        error: toError(error),
-      })
-    }
-  }
-
-  private transformMetricsForInternal(
-    metrics: ResourceMetrics,
-  ): InternalMetricsPayload {
-    const attrs = metrics.resource.attributes
-
-    const resourceAttributes: Record<string, string> = {
-      'service.name': (attrs['service.name'] as string) || 'claude-code',
-      'service.version': (attrs['service.version'] as string) || 'unknown',
-      'os.type': (attrs['os.type'] as string) || 'unknown',
-      'os.version': (attrs['os.version'] as string) || 'unknown',
-      'host.arch': (attrs['host.arch'] as string) || 'unknown',
-      'aggregation.temporality':
-        this.selectAggregationTemporality() === AggregationTemporality.DELTA
-          ? 'delta'
-          : 'cumulative',
-    }
-
-    // Only add wsl.version if it exists (omit instead of default)
-    if (attrs['wsl.version']) {
-      resourceAttributes['wsl.version'] = attrs['wsl.version'] as string
-    }
-
-    // Add customer type and subscription type
-    if (isClaudeAISubscriber()) {
-      resourceAttributes['user.customer_type'] = 'claude_ai'
-      const subscriptionType = getSubscriptionType()
-      if (subscriptionType) {
-        resourceAttributes['user.subscription_type'] = subscriptionType
-      }
-    } else {
-      resourceAttributes['user.customer_type'] = 'api'
-    }
-
-    const transformed = {
-      resource_attributes: resourceAttributes,
-      metrics: metrics.scopeMetrics.flatMap(scopeMetric =>
-        scopeMetric.metrics.map(metric => ({
-          name: metric.descriptor.name,
-          description: metric.descriptor.description,
-          unit: metric.descriptor.unit,
-          data_points: this.extractDataPoints(metric),
-        })),
-      ),
-    }
-
-    return transformed
-  }
-
-  private extractDataPoints(metric: MetricData): DataPoint[] {
-    const dataPoints = metric.dataPoints || []
-
-    return dataPoints
-      .filter(
-        (point): point is OTelDataPoint<number> =>
-          typeof point.value === 'number',
-      )
-      .map(point => ({
-        attributes: this.convertAttributes(point.attributes),
-        value: point.value,
-        timestamp: this.hrTimeToISOString(
-          point.endTime || point.startTime || [Date.now() / 1000, 0],
-        ),
-      }))
-  }
-
-  async shutdown(): Promise<void> {
-    this.isShutdown = true
-    await this.forceFlush()
-    logForDebugging('BigQuery metrics exporter shutdown complete')
-  }
-
-  async forceFlush(): Promise<void> {
-    await Promise.all(this.pendingExports)
-    logForDebugging('BigQuery metrics exporter flush complete')
-  }
-
-  private convertAttributes(
-    attributes: Attributes | undefined,
-  ): Record<string, string> {
-    const result: Record<string, string> = {}
-    if (attributes) {
-      for (const [key, value] of Object.entries(attributes)) {
-        if (value !== undefined && value !== null) {
-          result[key] = String(value)
-        }
-      }
-    }
-    return result
-  }
-
-  private hrTimeToISOString(hrTime: HrTime): string {
-    const [seconds, nanoseconds] = hrTime
-    const date = new Date(seconds * 1000 + nanoseconds / 1000000)
-    return date.toISOString()
-  }
-
-  selectAggregationTemporality(): AggregationTemporality {
-    // DO NOT CHANGE THIS TO CUMULATIVE
-    // It would mess up the aggregation of metrics
-    // for CC Productivity metrics dashboard
-    return AggregationTemporality.DELTA
-  }
-}

src/utils/telemetry/events.ts

@@ -1,75 +0,0 @@
-import type { Attributes } from '@opentelemetry/api'
-import { getEventLogger, getPromptId } from 'src/bootstrap/state.js'
-import { logForDebugging } from '../debug.js'
-import { isEnvTruthy } from '../envUtils.js'
-import { getTelemetryAttributes } from '../telemetryAttributes.js'
-
-// Monotonically increasing counter for ordering events within a session
-let eventSequence = 0
-
-// Track whether we've already warned about a null event logger to avoid spamming
-let hasWarnedNoEventLogger = false
-
-function isUserPromptLoggingEnabled() {
-  return isEnvTruthy(process.env.OTEL_LOG_USER_PROMPTS)
-}
-
-export function redactIfDisabled(content: string): string {
-  return isUserPromptLoggingEnabled() ? content : '<REDACTED>'
-}
-
-export async function logOTelEvent(
-  eventName: string,
-  metadata: { [key: string]: string | undefined } = {},
-): Promise<void> {
-  const eventLogger = getEventLogger()
-  if (!eventLogger) {
-    if (!hasWarnedNoEventLogger) {
-      hasWarnedNoEventLogger = true
-      logForDebugging(
-        `[3P telemetry] Event dropped (no event logger initialized): ${eventName}`,
-        { level: 'warn' },
-      )
-    }
-    return
-  }
-
-  // Skip logging in test environment
-  if (process.env.NODE_ENV === 'test') {
-    return
-  }
-
-  const attributes: Attributes = {
-    ...getTelemetryAttributes(),
-    'event.name': eventName,
-    'event.timestamp': new Date().toISOString(),
-    'event.sequence': eventSequence++,
-  }
-
-  // Add prompt ID to events (but not metrics, where it would cause unbounded cardinality)
-  const promptId = getPromptId()
-  if (promptId) {
-    attributes['prompt.id'] = promptId
-  }
-
-  // Workspace directory from the desktop app (host path). Events only —
-  // filesystem paths are too high-cardinality for metric dimensions, and
-  // the BQ metrics pipeline must never see them.
-  const workspaceDir = process.env.CLAUDE_CODE_WORKSPACE_HOST_PATHS
-  if (workspaceDir) {
-    attributes['workspace.host_paths'] = workspaceDir.split('|')
-  }
-
-  // Add metadata as attributes - all values are already strings
-  for (const [key, value] of Object.entries(metadata)) {
-    if (value !== undefined) {
-      attributes[key] = value
-    }
-  }
-
-  // Emit log record as an event
-  eventLogger.emit({
-    body: `claude_code.${eventName}`,
-    attributes,
-  })
-}