name: Auto review PRs
on:
  pull_request:
    types: [opened, synchronize, reopened, ready_for_review]

permissions:
  contents: read
  pull-requests: write

jobs:
  auto-review:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Claude PR review
        uses: anthropics/claude-code-action@main
        with:
          anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
          # Claude will fetch the diff and leave inline comments
          direct_prompt: |
            Review this pull request's diff for correctness, readability, testing, performance, and DX.
            Prefer specific, actionable suggestions. Use inline comments where relevant.
          # GitHub tools permitted during the run:
          allowed_tools: >-
            mcp__github__get_pull_request_diff,
            mcp__github__create_pending_pull_request_review,
            mcp__github__add_comment_to_pending_review,
            mcp__github__submit_pending_pull_request_review