name: Claude Code

on:
  issue_comment:
    types: [created]
  pull_request_review_comment:
    types: [created]
  issues:
    types: [opened, assigned]
  pull_request_review:
    types: [submitted]

permissions:
  contents: read

jobs:
  claude:
    # AND-gate on both the actor (``sender.login``) and the keyword. For the
    # ``issues`` event we additionally require ``issue.user.login`` to match
    # — otherwise an attacker could open an issue with ``@claude`` in the
    # body and wait for ``teng-lin`` to assign it: ``sender`` would then be
    # ``teng-lin`` while the prompt text remains attacker-authored. Keeping
    # the author check pins both the trigger and the prompt to the same
    # trusted account.
    if: |
      github.event.sender.login == 'teng-lin' && (
        (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' && github.event.issue.user.login == 'teng-lin' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')))
      )
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write # Required to post inline review-thread comments (not just a sticky issue comment)
      issues: read
      id-token: write
      actions: read # Required for Claude to read CI results on PRs
    steps:
      - name: Checkout repository
        uses: actions/checkout@v7
        with:
          fetch-depth: 1
          persist-credentials: false

      - name: Run Claude Code
        id: claude
        uses: anthropics/claude-code-action@558b1d6cab4085c7753fe402c10bef0fbb92ac7a  # @ v1.0.165
        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.'

          # Allow the GitHub inline-comment tool so a `@claude review` lands its
          # findings as inline PR review-thread comments (visible + addressable
          # like gemini/coderabbit), instead of only a single sticky issue
          # comment that the merge gate can miss. `--allowedTools` is additive in
          # this action (base Read/Glob/Grep/LS stay included). See docs/usage.md.
          claude_args: '--allowedTools "mcp__github_inline_comment__create_inline_comment"'