m15-anti-pattern skillA
m15-anti-pattern is agent-read markdown (skill) from moeru-ai/auv: Use when reviewing code for anti-patterns. Keywords: anti-pattern, common mistake, pitfall, code smell, bad practice, code review, is this an anti-pattern, better way to do this, common mistake to avoid, why is this bad, idiomatic way, beginner mistake, fighting borrow checker, clone everywhere, unwrap in production, should I refactor, 反模式, 常见错误, 代码异味, 最佳实践, 地道写法.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Anti-Patterns > **Layer 2: Design Choices** ## Core Question **Is this pattern hiding a design problem?** When reviewing code: - Is this solving the symptom or the cause? - Is there a more idiomatic approach? - Does this fight or flow with Rust? --- ## Anti-Pattern → Better Pattern | Anti-Pattern | Why Bad | Better | |--------------|---------|--------| | `.clone()` everywhere | Hides ownership issues | Proper references or ownership | | `.unwrap()` in production | Runtime panics | `?`, `expect`, or handling | | `Rc` when single owner | Unnecessary overhead | Simple ownership | | `unsafe` for convenience | UB risk | Find safe pattern | | OOP via `Deref` | Misleading API | Composition, traits | | Giant match arms | Unmaintainable | Extract to methods | | `String` everywhere | Allocation waste | `&str`, `Cow<str>` | | Ignoring `#[must_use]` | Lost errors | Handle or `let _ =` | --- ## Thinking Prompt When seeing suspicious code: 1. **Is this symptom or cause?** - Clone to avoid borrow? → Ownership design issue - Unwrap "because it won't fail"? → Unhandled case 2. **What would idiomatic code look like?** - References instead of clones …
Read the whole file at its exact version.
How to install
mdr add moeru-ai/auv/m15-anti-pattern@git:20260725.8a8e541mdr add moeru-ai/auv/m15-anti-pattern@sha256:bcbb49e47b76620bPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_55qqd5ods6kkcjoj)
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Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4838 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
moeru-ai/auv · 50 stars · license Apache-2.0 · pushed 2026-09-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_55qqd5ods6kkcjoj GET https://markdownregistry.com/api/v1/resolve?ref=moeru-ai/auv/m15-anti-pattern GET https://markdownregistry.com/api/v1/blob/bcbb49e47b76620b6303f508c323bd12897a730b80a29f7a760bbaed9a6002f2
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