Worked on the github/github-mcp-server repository to develop foundational Issue Relationship Management features, focusing on improving issue orchestration and automation. Built a parent navigation capability within issue hierarchies by adding a get_parent method to issue_read, and introduced MCP-based tools for managing issue dependencies, supporting blocked-by and blocking relationships. Leveraged Go for backend development and GraphQL for future extensibility, implementing fail-fast validation to prevent self-dependency mutations and ensuring safe defaults through feature flag gating. This work established the groundwork for scalable, cursor-paginated dependency graphs and enhanced cross-team collaboration, with a strong emphasis on robust API development and comprehensive testing practices.