Splits oversized Rust source files into cohesive module-based layouts.
npx skills add https://github.com/waki285/dotfiles --skill split-rust-file-waki285
Please help me install this Agent Skill. Skill: split-rust-file Source: https://github.com/waki285/dotfiles/tree/main/.skills/split-rust-file Command: npx skills add https://github.com/waki285/dotfiles --skill split-rust-file-waki285
foo.rs and foo/ directories. - Safe refactoring workflow: Moves code by responsibility, updates use and visibility paths, keeps mod.rs as a thin routing layer, and validates with cargo fmt and cargo check. - Use Case: You inherit a Rust project where src/parser.rs has grown to 2500 lines mixing types, parsing, and rendering. The Skill splits it into src/parser/mod.rs, types.rs, parse.rs, and render.rs with re-exports preserving the existing API. ## Quick Start Ask the AI to split every Rust file over 1000 lines in this project into well-organized modules and verify the crate still builds.High-intent search queries and answers about installing and using this skill.
Split a large Rust file by identifying responsibility boundaries such as types, parsing, and rendering, then moving each into its own module file. Keep mod.rs as a thin layer with module declarations and re-exports, and validate with cargo fmt and cargo check.
On macOS or Linux, run find with wc -l and filter with awk for files over 1000 lines. On Windows, use Get-ChildItem with [System.IO.File]::ReadAllLines to count physical lines per file.
Use sibling extraction when the original file should remain the facade or entry point for its API. Convert foo.rs into foo/mod.rs only when foo should own a nested namespace and the final layout fully replaces foo.rs.
No, having both foo.rs and a foo/ directory is a forbidden layout. Also avoid foo/foo.rs, and never place type definitions, impl blocks, or logic inside mod.rs, which should only declare and re-export modules.
Do not split a file that is long only because of one tightly coupled algorithm or a single large match table. If the code is one cohesive unit, explain that instead of forcing a poor module structure.
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