A Claude Code hook formats each .rs file as it is edited, and the pre-commit hook runs clippy as well as the format check. Clippy only checks, so with the line-tables profile it takes under a minute (57 s after a change) at load 8. rust-analyzer, which gave the same errors as clippy for 2.8 GB of memory, is no longer used. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>