Worked on the stacklok/toolhive repository to implement a sliding TTL renewal mechanism for public clients during token exchanges, addressing the issue of premature eviction for active clients. The solution involved moving the TTL renewal trigger from authorize reads to the token exchange path, closing a security loophole and aligning with anti-bloat policies. Developed the RenewClientTTL method within the ClientRegistry and integrated Redis EXPIRE for persistent storage, while maintaining a no-op for in-memory backends. Enhanced the client registration flow and introduced comprehensive unit tests using Go, focusing on API and backend development as well as robust testing practices to ensure maintainability.