code-review.yml

name: Code review

on:
  pull_request:
    branches: ["main"]
    types: [opened, synchronize, ready_for_review, reopened]

permissions:
  contents: read
  pull-requests: write
  issues: write
  id-token: write

concurrency:
  group: code-review-${{ github.ref }}
  cancel-in-progress: true

jobs:
  code-review:
    # Skip drafts.
    if: ${{ !github.event.pull_request.draft }}

    runs-on: ubuntu-latest
    timeout-minutes: 60
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Run code review
        uses: anthropics/claude-code-action@v1
        with:
          anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
          allowed_bots: "claude[bot]"
          prompt: |
            Review PR #${{ github.event.pull_request.number }} in ${{ github.repository }}.
            Get the diff: gh pr diff ${{ github.event.pull_request.number }}

            Read and follow the instructions in .github/prompts/code-review.md
          claude_args: >-
            --allowedTools Read,Glob,Grep,Skill,Task,Bash(gh:*),mcp__github_inline_comment__*
        env:
          # Required by gh CLI to fetch PR diffs and post review comments.
          GH_TOKEN: ${{ github.token }}