GitHub IssueをトリガーにClaude Code GitHub ActionsでPR作成・レビュー・修正まで自動化してみた

@ claude-code-actions-private % tree -la
.
├── .github
│   ├── mcp-servers.json
│   ├── prompts
│   │   ├── implementation-prompt.txt
│   │   └── review-prompt.txt
│   └── workflows
│       ├── claude.yml
│       ├── issue-to-pr.yml
│       └── pr-review.yml
├── CLAUDE.md
├── issue_sample.md
└── README.md

{
  "mcpServers": {
    "github": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "GITHUB_PERSONAL_ACCESS_TOKEN",
        "ghcr.io/github/github-mcp-server"
      ],
      "env": { "GITHUB_PERSONAL_ACCESS_TOKEN": "${GITHUB_TOKEN}" }
    },
    "awslabs.aws-documentation-mcp-server": {
      "command": "uvx",
      "args": ["awslabs.aws-documentation-mcp-server@latest"],
      "env": {
        "FASTMCP_LOG_LEVEL": "ERROR",
        "AWS_DOCUMENTATION_PARTITION": "aws"
      }
    },
    "awslabs.cdk-mcp-server": {
      "command": "uvx",
      "args": ["awslabs.cdk-mcp-server@latest"],
      "env": {
        "FASTMCP_LOG_LEVEL": "ERROR"
      }
    },
    "context7": {
      "type": "sse",
      "url": "https://mcp.context7.com/sse"
    }
  }
}

You are a developer implementing an issue.

Issue Information:
- REPO: ${REPOSITORY}
- ISSUE_NUMBER: ${ISSUE_NUMBER}

WORKFLOW:
1. Use mcp__github__get_issue to understand the issue requirements
2. Checkout and pull the latest 'main' branch
3. Create a new feature branch from 'main': "feature/issue-${ISSUE_NUMBER}"
4. Reference AWS documentation, CDK patterns, and context7 knowledge via MCP as needed for implementation
5. Implement ONLY what is described in the issue
6. Write clean, working code following project conventions
7. Add appropriate tests if the project has a test suite
8. If test code exists in the project, run all tests and ensure they pass before proceeding
9. Create PR targeting the 'main' branch using mcp__github__create_pull_request
10. If tests were run, add a comment to the PR with the test results using mcp__github__create_issue_comment
11. Remove "ready-for-implementation" label and add "implemented" label using mcp__github__update_issue

Available MCP Resources:
- AWS Documentation: Use awslabs.aws-documentation-mcp-server for AWS service documentation
- CDK Patterns: Use awslabs.cdk-mcp-server for CDK best practices and patterns
- Context7: Use context7 for additional coding knowledge and patterns

Focus on:
- Solving the specific problem described
- Writing maintainable code
- Following existing patterns in the codebase
- Leveraging AWS best practices when applicable

Do NOT:
- Add features not requested in the issue
- Refactor unrelated code
- Create documentation unless specifically requested

You are a senior code reviewer. Review this pull request and provide comprehensive feedback.

PR Information:
- REPO: ${REPOSITORY}
- PR_NUMBER: ${PR_NUMBER}

REVIEW PROCESS:
1. Use mcp__github__get_pull_request to understand the PR context
2. Use mcp__github__get_pull_request_diff to examine the code changes
3. Reference AWS documentation, CDK patterns, and context7 knowledge via MCP as needed for review
4. Create a pending review using mcp__github__create_pending_pull_request_review
5. Add inline comments using mcp__github__add_comment_to_pending_review for specific code issues
6. Submit the review using mcp__github__submit_pending_pull_request_review with overall feedback

FOCUS AREAS:
- Code quality and best practices
- Potential bugs or issues
- Performance considerations
- Security implications
- Test coverage
- Documentation updates if needed
- AWS best practices when applicable
- Error handling and edge cases

REVIEW GUIDELINES:
- Provide constructive feedback with specific suggestions for improvement
- Use inline comments to highlight specific areas of concern
- Acknowledge good practices and improvements
- Be respectful and educational in your feedback
- Consider the PR's scope and avoid scope creep suggestions

Available MCP Resources:
- AWS Documentation: Use awslabs.aws-documentation-mcp-server for AWS service documentation
- CDK Patterns: Use awslabs.cdk-mcp-server for CDK best practices and patterns
- Context7: Use context7 for additional coding knowledge and patterns

If the changes look good overall, approve the PR. If there are critical issues, request changes. Otherwise, provide comments for consideration.

name: Claude Mention Assistant

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

jobs:
  claude-code-action:
    if: |
      (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' && contains(github.event.issue.body, '@claude'))
    runs-on: ubuntu-latest
    concurrency:
      group: ${{ github.workflow }}-${{ github.event.issue.number || github.event.pull_request.number }}
      cancel-in-progress: false
    permissions:
      contents: write
      pull-requests: write
      issues: write
      id-token: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Run Claude PR Action
        uses: anthropics/claude-code-action@beta
        with:
          # anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
          # Or use OAuth token instead:
          claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
          timeout_minutes: "15"
          allowed_tools: |
            Bash,
            Write,
            Edit,
            MultiEdit,
            Read,
            LS,
            Glob,
            Grep,
            mcp__github__get_issue,
            mcp__github__create_branch,
            mcp__github__create_pull_request,
            mcp__github__update_issue
          mcp_config: .github/mcp-servers.json
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          # mode: tag  # Default: responds to @claude mentions
          # Optional: Restrict network access to specific domains only
          # experimental_allowed_domains: |
          #   .anthropic.com
          #   .github.com
          #   api.github.com
          #   .githubusercontent.com
          #   bun.sh
          #   registry.npmjs.org
          #   .blob.core.windows.net

name: Issue to PR

on:
  issues:
    types: [labeled]

jobs:
  implement:
    if: github.event.label.name == 'ready-for-implementation'
    runs-on: ubuntu-latest
    permissions:
      contents: write
      issues: write
      pull-requests: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Install uv
        run: |
          curl -LsSf https://astral.sh/uv/install.sh | sh
          echo "$HOME/.local/bin" >> $GITHUB_PATH

      - name: Substitute variables in prompt file
        run: |
          sed -e 's|\${REPOSITORY}|${{ github.repository }}|g' \
              -e 's|\${ISSUE_NUMBER}|${{ github.event.issue.number }}|g' \
              .github/prompts/implementation-prompt.txt > ${{ runner.temp }}/implementation-prompt-processed.txt

      - name: Run Implementation
        uses: anthropics/claude-code-base-action@beta
        with:
          prompt_file: ${{ runner.temp }}/implementation-prompt-processed.txt
          allowed_tools: |
            Bash,
            Write,
            Edit,
            MultiEdit,
            Read,
            LS,
            Glob,
            Grep,
            mcp__github__get_issue,
            mcp__github__create_branch,
            mcp__github__create_pull_request,
            mcp__github__update_issue,
            mcp__awslabs.aws-documentation-mcp-server__get_aws_documentation,
            mcp__awslabs.aws-documentation-mcp-server__search_aws_documentation,
            mcp__awslabs.cdk-mcp-server__CDKGeneralGuidance,
            mcp__awslabs.cdk-mcp-server__GetAwsSolutionsConstructPattern,
            mcp__awslabs.cdk-mcp-server__SearchGenAICDKConstructs,
            mcp__awslabs.cdk-mcp-server__GenerateBedrockAgentSchema,
            mcp__awslabs.cdk-mcp-server__LambdaLayerDocumentationProvider,
            mcp__awslabs.cdk-mcp-server__ExplainCDKNagRule,
            mcp__awslabs.cdk-mcp-server__CheckCDKNagSuppressions,
            mcp__context7__resolve-library-id,
            mcp__context7__get-library-docs
          mcp_config: .github/mcp-servers.json
          timeout_minutes: "20"
          claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

name: PR Review

on:
  pull_request:
    types: [review_requested]

jobs:
  auto-review:
    # 特定のユーザーが割り当てられた時のみ実行する場合は以下のようなif条件を追加
    # if: github.event.requested_reviewer.login == 'specific-username'
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Install uv
        run: |
          curl -LsSf https://astral.sh/uv/install.sh | sh
          echo "$HOME/.local/bin" >> $GITHUB_PATH

      - name: Substitute variables in prompt file
        run: |
          sed -e 's|\${REPOSITORY}|${{ github.repository }}|g' \
              -e 's|\${PR_NUMBER}|${{ github.event.pull_request.number }}|g' \
              .github/prompts/review-prompt.txt > ${{ runner.temp }}/review-prompt-processed.txt

      - name: Automatic PR Review
        uses: anthropics/claude-code-base-action@beta
        with:
          prompt_file: ${{ runner.temp }}/review-prompt-processed.txt
          allowed_tools: |
            mcp__github__get_pull_request,
            mcp__github__get_pull_request_diff,
            mcp__github__create_pending_pull_request_review,
            mcp__github__add_comment_to_pending_review,
            mcp__github__submit_pending_pull_request_review,
            mcp__awslabs.aws-documentation-mcp-server__get_aws_documentation,
            mcp__awslabs.aws-documentation-mcp-server__search_aws_documentation,
            mcp__awslabs.cdk-mcp-server__CDKGeneralGuidance,
            mcp__awslabs.cdk-mcp-server__GetAwsSolutionsConstructPattern,
            mcp__awslabs.cdk-mcp-server__SearchGenAICDKConstructs,
            mcp__awslabs.cdk-mcp-server__ExplainCDKNagRule,
            mcp__awslabs.cdk-mcp-server__CheckCDKNagSuppressions,
            mcp__context7__resolve-library-id,
            mcp__context7__get-library-docs
          mcp_config: .github/mcp-servers.json
          timeout_minutes: "5"
          claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

/install-github-app

claude setup-token