Set Custom Trigger Phrases for Claude in GitHub PRs

By default, Claude Code GitHub Actions responds to @claude in PR and issue comments. If that conflicts with another bot or you want a different keyword, the trigger_phrase parameter lets you change it.

- uses: anthropics/claude-code-action@v1
  with:
    anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
    trigger_phrase: "@ai-review"

Now team members type @ai-review fix the failing test instead of @claude. The action filters comments for your custom phrase and ignores everything else.

This is useful when you have multiple Claude-powered workflows on the same repo. Set one to trigger on @claude-review for code reviews and another on @claude-fix for bug fixes, each with different prompts and tool restrictions:

# Review workflow
trigger_phrase: "@claude-review"
claude_args: "--max-turns 5 --allowedTools Read,Glob,Grep"

# Fix workflow
trigger_phrase: "@claude-fix"
claude_args: "--max-turns 15"

Note that the trigger must appear in the comment body, not as a GitHub mention. It's a simple string match, not an actual GitHub user tag.

Name your bot whatever you want. It's your repo, your rules.

via Claude Code Docs — GitHub Actions