50 core Rust coding conventions covering naming, data types, strings, error handling, memory, concurrency, async, and modern crate recommendations. Use when reviewing code style or setting up project conventions.
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| Rule | Guideline |
|---|---|
No get_ prefix | fn name() not fn get_name() |
| Iterator convention | iter() / iter_mut() / into_iter() |
| Conversion naming | as_ (cheap ref), to_ (expensive), into_ (ownership) |
| Constants | SCREAMING_SNAKE_CASE for const/static |
| Rule | Guideline |
|---|---|
| Use newtypes | struct Email(String) for domain semantics |
| Prefer slice patterns | if let [first, .., last] = slice |
| Pre-allocate | Vec::with_capacity(), String::with_capacity() |
| Avoid Vec abuse | Use arrays for fixed sizes |
| Rule | Guideline |
|---|---|
| Prefer bytes | s.bytes() over s.chars() when ASCII |
Use Cow<str> | When might modify borrowed data |
Use write! | Over string concatenation with + |
| Avoid nested iteration | contains() on string is O(n·m) |
| Rule | Guideline |
|---|---|
Use ? propagation | Not try!() macro |
expect() over unwrap() | When value is guaranteed |
| Assertions for invariants | assert! at function entry |
| Rule | Guideline |
|---|---|
| Meaningful lifetimes | 'src, 'ctx not just 'a |
try_borrow() for RefCell | Avoid panic |
| Shadowing for transformation | let x = x.parse()? |
| Rule | Guideline |
|---|---|
| Identify lock ordering | Prevent deadlocks |
| Atomics for primitives | Not Mutex for bool/usize |
| Choose memory order carefully | Relaxed/Acquire/Release/SeqCst |
| Rule | Guideline |
|---|---|
| Sync threads for CPU-bound | Async is for I/O |
| Don't hold locks across await | Use scoped guards |
| Rule | Guideline |
|---|---|
| Avoid unless necessary | Prefer functions/generics |
| Follow Rust syntax | Macro input should look like Rust |
| Deprecated | Better | Since |
|---|---|---|
lazy_static! | std::sync::OnceLock | Rust 1.70 |
once_cell::Lazy | std::sync::LazyLock | Rust 1.80 |
std::sync::mpsc | crossbeam::channel | — |
std::sync::Mutex | parking_lot::Mutex | — |
failure/error-chain | thiserror/anyhow | — |
try!() | ? operator | 2018 edition |
Naming: snake_case (fn/var), CamelCase (type), SCREAMING_CASE (const)
Format: rustfmt (just use it)
Docs: /// for public items, //! for module docs
Lint: #![warn(clippy::all)]
anti-patterns — common style mistakeserror-handling — error crate selectionconcurrency — lock ordering and atomicsまだレビューはありません。使ってみた感想をお寄せください。
概要と使いどころ
Add an iOS App Clip target to an Expo app. Use when the user mentions App Clip, AASA, apple-app-site-association, appclips, smart app banner, or wants to ship a lightweight iOS Clip invoked from a URL alongside their parent app.
日本語の概要は準備中です。原文の説明を表示しています。
Automates browser interactions for web testing, form filling, screenshots, and data extraction. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, test web applications, or extract information from web pages.
日本語の概要は準備中です。原文の説明を表示しています。
Add Agentation visual feedback toolbar to a Next.js project
日本語の概要は準備中です。原文の説明を表示しています。
Apple's approach to interface design and fluid, physical motion, translated for the web. Use when building or reviewing gesture-driven UI, spring animations, drag/swipe/sheet interactions, momentum and interruptible transitions, translucent materials and depth, typography (optical sizing, tracking, leading), reduced-motion, or the design foundations (feedback, spatial consistency, restraint) behind Apple-style interfaces.
日本語の概要は準備中です。原文の説明を表示しています。
Derive and implement first-principles audio-coupled haptic and kinetic UI feedback. Use when designing, reviewing, or coding haptics/audio for mobile apps, native iOS/Android, React Native/Expo, SwiftUI, games, detent pickers, toggles, sliders, page curls, scroll gestures, wallet/signature flows, Solana transactions, backend/realtime state changes, confirmations, settlements, and semantic UI events where feedback should follow signal math instead of ad hoc vibration calls.
日本語の概要は準備中です。原文の説明を表示しています。
Babysit a GitHub pull request during a user-approved monitoring window by polling review comments, CI checks/workflow runs, and mergeability state. Diagnose failures, retry likely flaky failures up to 3 times, auto-fix/push branch-related issues when appropriate, and report fresh review feedback. Use when the user asks Codex to monitor a PR, watch CI, handle review comments, or keep an eye on failures and feedback on an open PR.
日本語の概要は準備中です。原文の説明を表示しています。