Worked on reliability and compatibility improvements across multiple backend repositories, focusing on Go, Python, and Rust. In ollama/ollama, decoupled prompt caching from context shift, allowing independent control over caching and context behavior in server requests. Enhanced astral-sh/uv by implementing a resilient uninstall flow that continues uninstalling tools even when receipts are missing, with added validation tests. Addressed Python compatibility in astral-sh/ruff by refining f-string linting for versions prior to 3.12, preserving diagnostics while suppressing inappropriate fixes. Improved NevaMind-AI/memU by handling edge cases in cosine_topk, ensuring robust behavior and comprehensive test coverage for non-positive top_k scenarios.