Add Claude Code GitHub Workflow

[jwilander]

🤖 Installing Claude Code GitHub App

This PR adds a GitHub Actions workflow that enables Claude Code integration in our repository.

What is Claude Code?

Claude Code is an AI coding agent that can help with:

• Bug fixes and improvements
• Documentation updates
• Implementing new features
• Code reviews and suggestions
• Writing tests
• And more!

How it works

Once this PR is merged, we'll be able to interact with Claude by mentioning @claude in a pull request or issue comment.
Once the workflow is triggered, Claude will analyze the comment and surrounding context, and execute on the request in a GitHub action.

Important Notes

• This workflow won't take effect until this PR is merged
• @claude mentions won't work until after the merge is complete
• The workflow runs automatically whenever Claude is mentioned in PR or issue comments
• Claude gets access to the entire PR or issue context including files, diffs, and previous comments

Security

• Our Anthropic API key is securely stored as a GitHub Actions secret
• Only users with write access to the repository can trigger the workflow
• All Claude runs are stored in the GitHub Actions run history
• Claude's default tools are limited to reading/writing files and interacting with our repo by creating comments, branches, and commits.
• We can add more allowed tools by adding them to the workflow file like:

allowed_tools: Bash(npm install),Bash(npm run build),Bash(npm run lint),Bash(npm run test)

There's more information in the Claude Code documentation.

After merging this PR, let's try mentioning @claude in a comment on any PR to get started!

[claude]

Claude finished @jwilander's task —— View job

---

PR Review: Claude Code GitHub Workflows

I've analyzed both workflow files and here's my comprehensive review:

Todo List:

• Read and analyze .github/workflows/claude-code-review.yml
• Read and analyze .github/workflows/claude.yml
• Review security considerations and secrets handling
• Check GitHub Actions best practices
• Assess performance and efficiency
• Look for potential bugs or configuration issues
• Provide comprehensive feedback and recommendations

🔐 Security Review

✅ Strong Points:

• Proper use of secrets.ANTHROPIC_API_KEY for API key management
• Minimal permissions granted: only contents: read, pull-requests: read, issues: read, id-token: write
• Uses official Anthropic action (anthropics/claude-code-action@beta)
• No hardcoded secrets or sensitive information
• Fetch depth limited to 1 for security and performance

⚠️ Considerations:

• Beta action usage: Consider monitoring for stability and updates to stable releases
• No explicit restrictions on who can trigger workflows (relies on repository permissions)

🏗️ Code Quality & Best Practices

✅ Excellent Implementation:

• Clean, well-structured YAML with consistent indentation
• Comprehensive comments explaining configuration options
• Proper event filtering with conditional logic in .github/workflows/claude.yml:15-19
• Uses latest actions/checkout@v4
• Includes helpful examples for customization

✅ Good Documentation:

• Extensive inline comments showing optional configurations
• Multiple example patterns for different use cases
• Clear separation of concerns between automated review vs. manual trigger workflows

⚡ Performance Considerations

✅ Optimized:

• fetch-depth: 1 minimizes checkout time and bandwidth
• Conditional execution prevents unnecessary runs
• Efficient trigger conditions using contains() function

📈 Potential Improvements:

• Consider adding path filters (commented examples provided) to avoid running on non-code changes
• Could add file size limits or timeout configurations if needed

🐛 Potential Issues

✅ No Critical Bugs Found

Minor Observations:

• .github/workflows/claude-code-review.yml:5 - Triggers on both opened and synchronize events, which is appropriate for code review
• Commented conditional logic shows good thought process for filtering PRs by author or file changes

🧪 Test Coverage & Maintainability

Current State:

• No explicit test workflows for the GitHub Actions themselves
• Well-documented configuration options make it maintainable

Recommendations:

1. Consider adding a test workflow that validates the YAML syntax
2. Monitor action runs initially to ensure proper behavior
3. Document the setup process in repository README or contribution guidelines

📋 Summary & Recommendations

Overall Assessment: ✅ APPROVED

This is a well-implemented Claude Code integration with:

• Strong security practices
• Clean, maintainable code
• Comprehensive documentation
• Appropriate permissions and triggers

Suggested Next Steps:

1. Monitor Initial Runs: Watch the first few workflow executions to ensure expected behavior
2. Consider Customization: Uncomment and customize allowed_tools based on your project's needs (e.g., linting, testing commands)
3. Add Path Filters: Consider uncommenting path filters if you want to limit reviews to specific file types
4. Document Usage: Add usage instructions to your repository's documentation

No blocking issues found - this PR is ready to merge! 🚀

---

[github-actions]

Newest code from mattermost has been published to preview environment for Git SHA e297acc

[cwarnermm]

Thanks, @jwilander!

[claude]

Claude finished @jwilander's task —— View job

---

PR Review: Claude Code GitHub Workflows

I've analyzed both workflow files and here's my comprehensive review:

Todo List:

• Read and analyze .github/workflows/claude-code-review.yml
• Read and analyze .github/workflows/claude.yml
• Review security considerations and secrets handling
• Check GitHub Actions best practices
• Assess performance and efficiency
• Look for potential bugs or configuration issues
• Provide comprehensive feedback and recommendations

🔐 Security Review

✅ Strong Points:

• Proper use of secrets.ANTHROPIC_API_KEY for API key management
• Minimal permissions granted: only contents: read, pull-requests: read, issues: read, id-token: write
• Uses official Anthropic action (anthropics/claude-code-action@beta)
• No hardcoded secrets or sensitive information
• Fetch depth limited to 1 for security and performance

⚠️ Considerations:

• Beta action usage: Consider monitoring for stability and updates to stable releases
• No explicit restrictions on who can trigger workflows (relies on repository permissions)

🏗️ Code Quality & Best Practices

✅ Excellent Implementation:

• Clean, well-structured YAML with consistent indentation
• Comprehensive comments explaining configuration options
• Proper event filtering with conditional logic in .github/workflows/claude.yml:15-19
• Uses latest actions/checkout@v4
• Includes helpful examples for customization

✅ Good Documentation:

• Extensive inline comments showing optional configurations
• Multiple example patterns for different use cases
• Clear separation of concerns between automated review vs. manual trigger workflows

⚡ Performance Considerations

✅ Optimized:

• fetch-depth: 1 minimizes checkout time and bandwidth
• Conditional execution prevents unnecessary runs
• Efficient trigger conditions using contains() function

📈 Potential Improvements:

• Consider adding path filters (commented examples provided) to avoid running on non-code changes
• Could add file size limits or timeout configurations if needed

🐛 Potential Issues

✅ No Critical Bugs Found

Minor Observations:

• .github/workflows/claude-code-review.yml:5 - Triggers on both opened and synchronize events, which is appropriate for code review
• Commented conditional logic shows good thought process for filtering PRs by author or file changes

🧪 Test Coverage & Maintainability

Current State:

• No explicit test workflows for the GitHub Actions themselves
• Well-documented configuration options make it maintainable

Recommendations:

1. Consider adding a test workflow that validates the YAML syntax
2. Monitor action runs initially to ensure proper behavior
3. Document the setup process in repository README or contribution guidelines

📋 Summary & Recommendations

Overall Assessment: ✅ APPROVED

This is a well-implemented Claude Code integration with:

• Strong security practices
• Clean, maintainable code
• Comprehensive documentation
• Appropriate permissions and triggers

Suggested Next Steps:

1. Monitor Initial Runs: Watch the first few workflow executions to ensure expected behavior
2. Consider Customization: Uncomment and customize allowed_tools based on your project's needs (e.g., linting, testing commands)
3. Add Path Filters: Consider uncommenting path filters if you want to limit reviews to specific file types
4. Document Usage: Add usage instructions to your repository's documentation

No blocking issues found - this PR is ready to merge! 🚀

[github-actions]

Newest code from mattermost has been published to preview environment for Git SHA 9119a4e