git_author_gate.yml

name: Git Author Gate

on:
  workflow_dispatch:

jobs:
  git_author_check:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout with full history
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Scan commits for AI authors
        run: |
          echo "Scanning last 200 commits for AI author patterns..."
          git log -n 200 --format="%H|%an|%ae|%cn|%ce|%s" | tee commit_log.txt

          # Check for AI author patterns
          if grep -Eiq '(claude|chatgpt|openai)\b' commit_log.txt; then
            echo "❌ ERROR: AI author detected in commit history (Claude, ChatGPT, or OpenAI)"
            echo ""
            echo "Detected commits:"
            grep -Ei '(claude|chatgpt|openai)\b' commit_log.txt || true
            exit 1
          else
            echo "✅ All commits have human authors"
          fi

      - name: Check for AI coauthors
        run: |
          echo "Scanning commits for AI CoAuthor lines..."
          git log -n 200 --format="%B" | tee commit_messages.txt

          if grep -Eiq 'co-authored-by:.*(claude|chatgpt|openai)\b' commit_messages.txt; then
            echo "❌ ERROR: AI CoAuthor detected in commit messages"
            exit 1
          else
            echo "✅ No AI CoAuthor lines found"
          fi