CI/CD Integration with Claude Code

claude -p "Review this diff for bugs and security issues" --output-format text

git diff main...HEAD | claude -p "Review this diff"

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

jobs:
  review:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Install Claude Code
        run: npm install -g @anthropic-ai/claude-code

      - name: Run review
        env:
          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
        run: |
          DIFF=$(git diff origin/main...HEAD)
          REVIEW=$(echo "$DIFF" | claude -p "Review this diff. List any bugs, security issues, or improvements. Be concise." --output-format text)
          gh pr comment ${{ github.event.pull_request.number }} --body "$REVIEW"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

name: Claude Auto-fix
on:
  push:
    branches: [main]

jobs:
  autofix:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Run linter
        id: lint
        run: npm run lint 2>&1 | tee lint-output.txt
        continue-on-error: true

      - name: Fix lint errors with Claude
        if: steps.lint.outcome == 'failure'
        env:
          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
        run: |
          claude -p "Fix these lint errors. Only modify the files mentioned: $(cat lint-output.txt)"

      - name: Create fix PR
        if: steps.lint.outcome == 'failure'
        run: |
          git checkout -b autofix/lint-${{ github.sha }}
          git add -A
          git commit -m "fix: auto-fix lint errors"
          git push -u origin HEAD
          gh pr create --title "fix: auto-fix lint errors" --body "Automated lint fixes by Claude Code"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

name: Test Coverage Check
on:
  pull_request:

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

      - name: Find untested files
        run: |
          CHANGED=$(git diff --name-only origin/main...HEAD -- '*.ts' '*.tsx' | grep -v test | grep -v spec)
          echo "$CHANGED" > changed-files.txt

      - name: Generate tests
        env:
          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
        run: |
          for file in $(cat changed-files.txt); do
            claude -p "Generate unit tests for $file. Follow existing test patterns in the project."
          done

claude-review:
  stage: review
  image: node:22
  before_script:
    - npm install -g @anthropic-ai/claude-code
  script:
    - DIFF=$(git diff $CI_MERGE_REQUEST_DIFF_BASE_SHA...HEAD)
    - REVIEW=$(echo "$DIFF" | claude -p "Review this merge request diff" --output-format text)
    - 'curl --request POST --header "PRIVATE-TOKEN: $GITLAB_TOKEN"
       --data-urlencode "body=$REVIEW"
       "$CI_API_V4_URL/projects/$CI_PROJECT_ID/merge_requests/$CI_MERGE_REQUEST_IID/notes"'
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event"