Over a two-month period, contributed to ResearchSpace-ELN/rspace-web by enhancing Swagger API documentation for the /activity endpoint, improving auditing clarity and developer onboarding through comprehensive resource domain coverage. Leveraged TypeScript and YAML to align documentation with actual resource types, supporting integration testing and maintaining API stability. In modelcontextprotocol/typescript-sdk, reorganized the codebase by renaming the validation folder to validators, clarifying project structure for maintainability. Additionally, in typeorm/typeorm, re-enabled and expanded cascade soft-remove tests, strengthening data integrity and reducing regression risk. Demonstrated a methodical approach to software development, database management, and testing, with a focus on reliability and cross-repository consistency.