cc-rust-dev

CC Rust Dev

Use this skill when editing or reviewing Rust code, focusing on idiomatic Rust, module splitting, error handling (thiserror/anyhow), Tokio async pitfalls, Axum routing organization, and testing.

Do not use for:

• Formal review or fix/debug workflows
• Operations risk assessment
• General change boundaries unrelated to Rust
• wasm / CLI / embedded scenarios (this skill focuses on backend Web)

Core rules

• Split modules by responsibility into .rs files, do not pile into lib.rs；pub(crate) takes precedence over pub。
• Errors: libraries use thiserror, applications use anyhow, unified across boundaries AppError + IntoResponse。
• Production code prohibits .unwrap() / .expect() / panic!(); configure clippy deny.
• Async: blocking calls must tokio::task::spawn_blocking; across .await locks use tokio::sync::Mutex。
• tokio::select! branches must be cancel-safe; when unsure, save state to select! externally.
• Default edition = "2024", TLS choose rustls; business code in principle prohibits unsafe。

Expand as needed

• Style:references/style.md
• Error handling:references/errors.md
• Async and Axum:references/async.md
• Testing:references/testing.md
• Project structure:references/project-shape.md