Individual skill

rust

Use when writing, reviewing, testing, or shipping Rust — ownership and the borrow checker (move/borrow/clone, Arc/RefCell, lifetimes), errors with Result/`?`/thiserror/anyhow, async on tokio, axum 0.8 services, cargo test, and sqlx + cargo-audit hardening. NOT the same service in Go (that is `go`), NOT a desktop webview shell (that is `tauri`).

skills/rust/SKILL.md

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Repository stars (not skill ratings): 560
Repository last updated: Nov 4, 2026
License: MIT

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rust Declared skill tag
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SKILL.mdcore · 14,621 bytes
evals/README.mddoc · 1,052 bytes
evals/cases.yamlasset · 3,747 bytes
references/async-tokio.mddoc · 4,678 bytes
references/axum-service.mddoc · 4,108 bytes
references/ownership.mddoc · 4,722 bytes
references/testing.mddoc · 2,960 bytes
scripts/verify.shruns · 2,877 bytes

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# Idiomatic Rust services

Write, review, test, and ship idiomatic async Rust services with the ownership model working *for*
you, not against you.

Targets **Rust 1.85+ / edition 2024** as the floor: native `async fn`
in traits (no reflexive `#[async_trait]`), **tokio 1.x** as the runtime, **axum 0.8** for the HTTP
surface (`{id}` path-capture syntax, async-trait-free extractors), **thiserror 2** for library error
enums and **anyhow** at the application edge, **sqlx** for compile-time-checked SQL, and **tracing**
for structured observability.

The thing an agent gets wrong in Rust is almost never syntax — it is *ownership*. Most "bugs" are
compile errors about moves, borrows, and `Send + Sync` across `.await`. Front-load that mental model;
the rest follows.