Add GitHub Projects v2 API Toolset to MCP Server (Public Version)

[owenniblock]

Describe the feature or problem you’d like to solve

Add support for the GitHub Projects v2 API to the public MCP server by implementing a new "projects" toolset. This will enable users and LLM agents to read and write to GitHub Projects using the MCP server, supporting automation, issue/PR triage, and developer workflow enhancements in public and open environments.

Proposed solution

• Implement a "projects" toolset using the server's GraphQL client and toolset registration patterns (see pkg/toolsets/toolsets.go, internal/ghmcp/server.go).
• Ensure host-agnostic logic: register only on hosts that support Projects v2, with clear error handling for unsupported hosts.
• Respect configuration options:
  • Command line flags/environment variables for toolsets (see README.md: --toolsets, GITHUB_TOOLSETS)
  • Read-only mode (enable only read tools when set)
• Tools to implement:
  • Read: List projects for owner, get project by owner+number, list fields/options, list items
  • Write: Add item, create draft issue, update field values, remove item (optional)
• Use GraphQL queries/mutations for Projects v2 operations, with input validation and error handling matching public MCP conventions.
• Integrate with public documentation and update README:
  • Document toolset usage, configuration, and agent prompt examples
  • Ensure compatibility with dynamic tool discovery (see README.md: Dynamic Tool Discovery, Docker usage)

Example prompts or workflows (for tools/toolsets only)

• "List all open projects for org github"
• "Add github/owner/repo#123 to org project Engineering and set Status to In Progress"
• "Create a new draft issue in project X with title 'Refactor API layer'"

Additional context

Relevant code snippets for toolset registration and configuration:

• Toolset registration and host detection
• Dynamic toolset discovery
• MCP server configuration and registration
• Toolsets configuration in README

Reference the feature_request.md template for section guidance.

[tommaso-moro]

@owenniblock thank you for adding this!

[tommaso-moro]

Linking this for reference: Add support for Projects #44