Conciseness

The body is a lean set of dense, scannable tables with no concept-explaining padding, and explicitly assumes competence ("Claude knows Rust conventions well. These are the non-obvious Rust-specific rules"). Version numbers are confined to the Deprecated section, so no time-sensitivity penalty applies, matching the anchor for lean and efficient content.

Actionability

Most rules pair a concrete code pattern with the prescription (e.g. `fn name()` not `fn get_name()`, `Vec::with_capacity()`, `let x = x.parse()?`), but a few are advisory without a concrete action ("Identify lock ordering | Prevent deadlocks", "Choose memory order carefully"). This fits the anchor for mostly executable guidance with minor gaps.

Workflow Clarity

This is a well-organized single-purpose reference categorized by topic rather than a multi-step workflow, and there are no destructive or batch operations to validate. The single action (apply these rules) is unambiguous and clearly organized, fitting just above the midpoint; the strict under-50-line simple-skill exception does not fully apply.

Progressive Disclosure

No bundle files exist and all content lives inline in SKILL.md, organized into clear section headers (Naming, Data Types, Error Handling, etc.) with no nested or buried references. Structure is good and easy to navigate, matching the anchor for good structure with minor organization gaps; there is no progressive split because none is needed at this size.

Specificity

The description names the domain ("Rust code style or best practices") but lists no concrete actions or capabilities, matching the anchor for minimal/generic actions. It is not entirely vague (a specific Rust domain is named) yet lacks the 1-2 concrete actions needed for a 3.

Completeness

It has an explicit "Use when asking about Rust code style or best practices" trigger (clear "when") plus a stated domain (weak "what"), but the "what" is thin and never states the skill supplies 50 concrete rules. It sits above the midpoint due to the explicit trigger but below 5 because the capability is not concretely described.

Trigger Term Quality

It provides comprehensive natural keywords with synonyms ("code style", "best practice"), specific tools users say ("clippy", "rustfmt", "lint"), and bilingual variants, matching the anchor for comprehensive coverage including synonyms.

Distinctiveness Conflict Risk

The Rust-specific triggers (clippy, rustfmt, Rust naming conventions) carve a clear niche, but generic terms like "code review", "best practice", and "code style" carry minor overlap risk with general code-quality skills. This fits the anchor for mostly distinct with minor overlap.