Worked on the pnpm/pnpm repository to enhance the npm resolver’s accuracy for fully excluded packages, focusing on improving dependency resolution reliability. The solution bypassed the mtime-based fast path for excluded packages, ensuring that version selection is always validated against the latest available data and reducing the risk of stale metadata pinning older versions. This update was implemented using Rust and TypeScript, leveraging skills in package management and testing. Comprehensive regression tests were added to validate the new resolver logic, maintaining test coverage and guarding against future regressions while delivering a cohesive change set that improves install reliability and version accuracy.