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rust-implement

Write production-grade Rust code using a multi-pass approach. Design types first, then implement, then simplify, then verify with automated lint. Use this skill whenever writing new Rust functions, structs, modules, or features. Triggers on Rust implementation, new Rust code, Rust functions, Rust modules, error handling in Rust, async Rust, or type design in Rust.

skills/.curated/rust-implement/SKILL.md

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# Rust Implementation Discipline

Write code in passes. Experts don't produce perfect code in one shot -- they design, implement, review, and simplify. Follow this process for every module you write.

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## Pass 1: Design Types and Signatures

Before writing any implementation, write ONLY the type definitions and function signatures. No bodies. No logic.

Ask yourself these questions before moving on:

- Can any enum state represent an invalid combination? If yes, restructure so invalid states are unrepresentable.
- Are all parameters self-documenting? Replace `bool` params with enums (Transformation 2).