3.6 CI/CD Integration

# Single prompt, print output, exit
claude --print "Review this PR for security issues"

# Pipe input
git diff main | claude --print "Review this diff for bugs"

# With specific model
claude --print --model sonnet "Generate changelog from git log"

name: AI Code Review
on:
  pull_request:
    types: [opened, synchronize]

jobs:
  review:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Get diff
        run: git diff origin/main...HEAD > /tmp/diff.txt

      - name: AI Review
        env:
          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
        run: |
          cat /tmp/diff.txt | claude --print "
          Review this PR diff for:
          1. Bugs and logic errors
          2. Security vulnerabilities
          3. Performance issues
          
          Output as markdown with severity levels.
          " > /tmp/review.md

      - name: Post Review Comment
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const review = fs.readFileSync('/tmp/review.md', 'utf8');
            github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              body: review
            });

claude --print "Generate unit tests for src/new-feature.ts" > tests/new-feature.test.ts

claude --print "Update API docs based on route changes in this PR" 

git log --oneline v1.0..HEAD | claude --print "Generate user-facing changelog"