Replace broken @claude workflow with Bedrock-based claude-review/mention (#10880)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

.github/claude-review-prompt.md

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+You are an experienced senior React Native engineer reviewing a pull
+request in the Bluesky Social app — a cross-platform (iOS, Android, Web)
+React Native + Expo application. Read the repo's CLAUDE.md before forming
+an opinion; it describes the architecture, the ALF design system, and the
+codebase conventions.
+
+Your audience is other senior engineers. Write peer-to-peer, not
+teacher-to-junior. Most PRs in this repo are fine; a review that says so
+is a valid and common outcome.
+
+Report a finding only if you can name a concrete scenario — specific
+input, platform, navigation path, or operating condition — in which the
+change causes incorrect behavior, a crash, a visual regression, a test
+failure, a security issue, or a real regression visible to users. Style,
+naming, and micro-optimizations are out of scope unless they introduce a
+defect. Do not speculate that a change "might" break unrelated code
+without pointing to the specific caller or code path. Do not repeat what
+the diff does.
+
+Where this codebase differs from a typical web app:
+
+- Three platforms from one codebase. Web-only APIs (DOM, window),
+  native-only modules, and platform-specific files (.web.tsx, .ios.tsx,
+  .android.tsx) are common sources of single-platform breakage. When a
+  change touches shared code, consider all three targets.
+- User-facing strings must go through Lingui (the `Trans` macro /
+  `useLingui`). Hardcoded English strings in UI are a finding. Do not
+  flag missing translations in catalog files — extraction and
+  compilation run in CI.
+- New UI should use ALF (`#/alf`, `#/components`) rather than legacy
+  patterns (`#/view/com`, StyleSheet.create); flag newly written code
+  that adopts deprecated patterns, but don't flag pre-existing code the
+  PR merely touches.
+- Server state lives in TanStack Query under src/state/queries. Watch
+  for cache-shape changes without corresponding invalidation updates,
+  and optimistic updates that can leave stale cache on failure.
+- List rendering is performance-critical (the main feed). Changes to
+  feed items, FlatList usage, or anything in a hot render path deserve
+  scrutiny for re-render storms — unstable callback/object identities
+  passed to memoized children, missing memoization on expensive
+  computation.
+- Moderation and content-filtering logic (labels, mutes, blocks,
+  hidden posts) is trust-and-safety-critical: a regression that shows
+  content that should be filtered is a blocking finding.
+- Deep links, push-notification routing, and the navigation state
+  machine have platform-specific edge cases; changes there should name
+  the platforms they were verified on.
+- The embed (bskyembed) and web deployment surfaces (bskyweb, link,
+  ogcard services in Go) ship separately from the app; changes there
+  have their own blast radius.
+
+For each finding, state the scenario in one or two sentences, cite
+file:line, and mark severity (blocking / non-blocking). If you are
+uncertain but the potential impact is high (crash on startup, moderation
+bypass, broken auth), include it and say what you are uncertain about.
+Otherwise, prefer silence over guessing.
+
+If there are no findings that meet this bar, say briefly that the PR
+looks fine and note what you checked.
+
+Post your review as a single top-level PR comment. Per-finding inline
+comments are also welcome where they'd anchor a reader to the specific
+lines involved.

.github/workflows/claude-mention.yml

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+name: claude-mention
+
+# @claude mention handler on PR conversation comments, inline review
+# comments, and review bodies. See the header comment in
+# claude-review.yml for why this is self-contained rather than calling
+# the org reusable workflows.
+#
+# Authorization note: this repo is public, and the load-bearing gate
+# against drive-by commenters is INSIDE claude-code-action — the action
+# verifies via the API that the triggering actor has write permission
+# before doing anything (`allowed_non_write_users` and `allowed_bots`
+# both default to deny). The `if:` below is a cheap pre-filter to avoid
+# spinning up runners for the 99% of comments that don't mention
+# @claude; it is not the security boundary.
+
+on:
+  issue_comment:
+    types: [created]
+  pull_request_review_comment:
+    types: [created]
+  pull_request_review:
+    types: [submitted]
+
+permissions:
+  contents: read
+  pull-requests: write
+  issues: write
+  actions: read
+  id-token: write
+
+jobs:
+  mention:
+    # Skip comments/reviews that don't mention @claude, non-PR issue
+    # comments, and events from claude[bot] itself (its review prose
+    # often quotes "@claude" and must not retrigger the workflow).
+    if: >
+      (
+        (github.event_name == 'issue_comment' &&
+          github.event.issue.pull_request != null &&
+          contains(github.event.comment.body, '@claude')) ||
+        (github.event_name == 'pull_request_review_comment' &&
+          contains(github.event.comment.body, '@claude')) ||
+        (github.event_name == 'pull_request_review' &&
+          contains(github.event.review.body, '@claude'))
+      ) &&
+      github.actor != 'claude[bot]'
+
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+
+    concurrency:
+      group: claude-mention-${{ github.repository }}-${{ github.event.issue.number || github.event.pull_request.number }}
+      cancel-in-progress: false
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 1
+
+      - name: Configure AWS credentials (OIDC)
+        uses: aws-actions/configure-aws-credentials@v6
+        with:
+          role-to-assume: ${{ secrets.AWS_BEDROCK_REVIEW_ROLE_ARN }}
+          aws-region: us-east-2
+
+      - name: Claude
+        uses: anthropics/claude-code-action@v1
+        with:
+          use_bedrock: 'true'
+          additional_permissions: |
+            actions: read
+          track_progress: true
+          claude_args: |
+            --model global.anthropic.claude-opus-4-8
+            --allowedTools "mcp__github_inline_comment__create_inline_comment,mcp__github_ci__get_ci_status,mcp__github_ci__download_job_log,Bash(gh pr comment:*),Bash(gh pr diff:*),Bash(gh pr view:*)"

.github/workflows/claude-review.yml

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+name: claude-review
+
+# Automatic Claude review on PR creation/update, via Bedrock (OIDC, no
+# long-lived tokens). Self-contained: this intentionally uses upstream
+# claude-code-action defaults rather than the org reusable workflows in
+# bluesky-social/.github (which a public repo cannot call, and whose
+# customizations added no value over upstream).
+#
+# Review guidance lives in .github/claude-review-prompt.md.
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+
+permissions:
+  contents: read
+  pull-requests: write
+  actions: read
+  id-token: write
+
+jobs:
+  review:
+    # Internal PRs only. This repo is public: fork PRs are the bulk of
+    # community traffic and MUST NOT trigger reviews (no Bedrock spend on
+    # unvetted code, and fork PRs can't mint the OIDC token anyway —
+    # belt-and-braces with this explicit guard). Branch PRs can only be
+    # created by people with write access, i.e. org members.
+    # Bot-authored PRs (dependabot, changesets) are also skipped.
+    if: >
+      github.event.pull_request.draft == false &&
+      github.event.pull_request.head.repo.full_name == github.repository &&
+      github.event.pull_request.user.type != 'Bot'
+
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+
+    concurrency:
+      group: claude-review-${{ github.repository }}-${{ github.event.pull_request.number }}
+      cancel-in-progress: true
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 1
+
+      - name: Configure AWS credentials (OIDC)
+        uses: aws-actions/configure-aws-credentials@v6
+        with:
+          role-to-assume: ${{ secrets.AWS_BEDROCK_REVIEW_ROLE_ARN }}
+          aws-region: us-east-2
+
+      - name: Claude review
+        uses: anthropics/claude-code-action@v1
+        with:
+          use_bedrock: 'true'
+          additional_permissions: |
+            actions: read
+          track_progress: true
+          claude_args: |
+            --model global.anthropic.claude-opus-4-8
+            --allowedTools "mcp__github_inline_comment__create_inline_comment,mcp__github_ci__get_ci_status,mcp__github_ci__download_job_log,Bash(gh pr comment:*),Bash(gh pr diff:*),Bash(gh pr view:*)"
+          prompt: |
+            REPO: ${{ github.repository }}
+            PR NUMBER: ${{ github.event.pull_request.number }}
+
+            Read .github/claude-review-prompt.md in the checked-out repo
+            and review this pull request following its guidance.

.github/workflows/claude.yml

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-name: Claude Code
-
-on:
-  issue_comment:
-    types: [created]
-  pull_request_review_comment:
-    types: [created]
-  issues:
-    types: [opened, assigned]
-  pull_request_review:
-    types: [submitted]
-
-jobs:
-  claude:
-    if: |
-      (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) ||
-      (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude')) ||
-      (github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude')) ||
-      (github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')))
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      pull-requests: read
-      issues: read
-      id-token: write
-      actions: read # Required for Claude to read CI results on PRs
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v5
-        with:
-          fetch-depth: 1
-
-      - name: Run Claude Code
-        id: claude
-        uses: anthropics/claude-code-action@v1
-        with:
-          claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
-
-          # This is an optional setting that allows Claude to read CI results on PRs
-          additional_permissions: |
-            actions: read
-
-          # Optional: Give a custom prompt to Claude. If this is not specified, Claude will perform the instructions specified in the comment that tagged it.
-          # prompt: 'Update the pull request description to include a summary of changes.'
-
-          # Optional: Add claude_args to customize behavior and configuration
-          # See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md
-          # or https://code.claude.com/docs/en/cli-reference for available options
-          # claude_args: '--allowed-tools Bash(gh pr:*)'
-
-          # NOTE(sfn): we can add a custom system prompt here
-
-          claude_args: |
-            --model claude-opus-4-8