Conciseness

The 'Common Patterns' section (~160 lines of before/after TypeScript for Strategy, Factory, Adapter, Observer, Anti-Corruption Layer, Humble Object) re-demonstrates textbook Gang-of-Four patterns Claude already knows, fitting the 'mostly efficient but includes some unnecessary explanation or could be tightened' anchor. It is not a 2 because there is no padded prose and the anti-pattern WHY rationales and selection workflow add genuine non-obvious value; it is not a 4 because the pattern catalog could be collapsed to use-when triggers with details delegated to references/detailed-examples.md.

Actionability

Concrete, near-executable TypeScript examples per pattern, copy-paste rg commands for candidate discovery ("rg -n \"if.*type.*==|switch.*\(type\)|instanceof\" src"), and fill-in templates with worked examples match 'mostly executable guidance; concrete code or commands with minor gaps'. Not a 5 because several examples are skeletal ({ /* ... */ } bodies, undefined Email/User types) rather than fully copy-paste ready.

Workflow Clarity

The three-step Pattern Selection Workflow is clearly sequenced with an explicit Output artifact per step, a measurability requirement ('ensure the win condition is measurable, not aspirational'), and a documentation template that includes a Validation line — matching 'clear sequence with most checkpoints present; minor validation gaps'. Not a 5 because there is no feedback loop for when a chosen pattern fails its win condition or fit questions; not a 3 because checkpoints are explicit rather than implicit. The destructive/batch cap does not apply since this is a decision-making skill.

Progressive Disclosure

The body is well-sectioned and all 11 referenced files under 'Pattern Reference Files' exist as one-level-deep markdown files with no nested references, matching 'good structure; most content appropriately placed; references mostly clear'. Not a 5 because the references are listed as a flat end-of-file catalog rather than contextually signaled from the relevant sections, and the inlined pattern catalog is content that could itself live in the existing detailed-examples.md reference.

Specificity

"Select and apply structural design patterns (Strategy, Factory, Adapter, Observer, etc.) to reduce complexity in class design" names the domain plus concrete actions and specific pattern names, matching the 'several specific actions; minor gaps' anchor. It falls short of a 5 because the action verbs are limited to select/apply rather than a comprehensive action inventory, and above a 3 because coverage goes beyond 1-2 generic actions.

Completeness

It explicitly answers both: what ("Select and apply structural design patterns ... to reduce complexity in class design") and when ("Use when evaluating ... refactoring conditional logic ... resolving inheritance problems, or deciding how to structure classes") with concrete trigger phrases. Clearly matches the top anchor; neither component is missing or merely implied.

Trigger Term Quality

Natural user phrases are present — "refactoring conditional logic", "too many if/else statements", "code smells", "resolving inheritance problems", "deciding how to structure classes" — giving good keyword coverage with only a few variants missing (e.g., switch statements, duplication). Not a 5 because synonyms are not comprehensive and it leans slightly formal ("evaluating whether a pattern solves a concrete problem") over the phrasing a user would naturally type.

Distinctiveness Conflict Risk

The niche is clear (structural design patterns at the class level) with distinct triggers like if/else chains and inheritance problems, so it is mostly distinguishable from related skills. Not a 5 because broad phrases like "code smells" and "reduce complexity" could overlap with general refactoring or SOLID-principles skills, though the pattern-specific triggers keep conflict risk minor.