During May 2025, Chris Costello focused on enhancing the llm-d/llm-d repository by overhauling its documentation and updating the core features list. He refreshed the README, onboarding, and architecture sections using Markdown, aiming to streamline contributor onboarding and clarify project structure. His disciplined documentation cadence, reflected in six targeted commits, improved knowledge transfer and long-term maintainability. Chris also introduced the Prefill/Decode Disaggregation feature to the documented capabilities, ensuring the repository accurately reflects current functionality. While no customer-facing features or bug fixes were delivered, his work addressed developer experience and onboarding challenges, demonstrating depth in documentation and process improvement skills.