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The Reflex team optimized Python's ast.walk by 220x for their AI code generation linter by removing generator overhead, inlining functions, and implementing a Rust binding.
Oxlint has reached 7 million weekly downloads, with half of users enabling type-aware linting.
Ruff is an extremely fast Python linter and code formatter written in Rust, aiming to replace multiple existing tools like Flake8, Black, and isort.
Mado is a fast Markdown linter written in Rust, compatible with CommonMark and GFM, claiming 49-60x speed improvement over existing linters like markdownlint.