Conciseness

The body is largely lean — commands with one-line expected results, no re-explanation of what Gherkin or Cucumber are — but a few tokens could be trimmed: the "Evaluate this skill quality" section is meta-content that does not help the skill's user, and the async-timing troubleshooting line spells out behavior Claude can infer ("Steps that don't wait for async operations will complete before actions finish"). Not a 5 because these minor padded spots exist; not a 3 because there is no concept-teaching and every section carries operational value.

Actionability

Five copy-paste-ready `npx cucumber-js` commands with expected results, plus concrete BAD/GOOD Gherkin step examples, cover running and diagnosing fully. Not a 5 because step-definition implementation — one of the skill's core tasks — gets only the abstract directive "Implement step definitions that map to business language" with no code snippet or pointer to a specific example in the references.

Workflow Clarity

The five-step workflow has explicit validation checkpoints ("If scenarios fail due to incorrect business logic, loop back to step 2") and error-recovery actions with a concrete command (`npx cucumber-js --dry-run` to find missing steps) — a genuine feedback loop matching the top anchor. Not a 4 because both failure modes are distinguished and each is routed to a corrective step with a verification command.

Progressive Disclosure

The body stays a concise overview, and five of the seven files in `references/` are listed one level deep in a References section (all listed paths exist on disk). Not a 5 because two bundle files (`principles-living-documentation.md`, `principles-ubiquitous-language.md`) are never signaled in the body and would only be found by directory listing, and the references are bare paths with no hint of what each covers.

Specificity

The description lists multiple concrete actions — "Write and maintain Behavior-Driven Development tests", "defining acceptance scenarios, writing feature files, implementing step definitions, running Three Amigos sessions, or diagnosing BDD test quality issues" — covering the skill's capabilities comprehensively with no vague filler. Not a 4 because there are no coverage gaps: authoring, implementing, running, and diagnosing are all named.

Completeness

It explicitly answers both questions: what ("Write and maintain BDD tests with Gherkin and Cucumber") and when ("Use when defining acceptance scenarios, writing feature files, implementing step definitions, running Three Amigos sessions, or diagnosing BDD test quality issues") with concrete trigger phrases. Not a 4 because the 'when' clause is fully explicit and enumerated rather than merely present.

Trigger Term Quality

An explicit keyword list — "bdd, gherkin, cucumber, given when then, feature files, step definitions, acceptance criteria, three amigos, example mapping" — comprehensively covers the natural phrases a user would say, including synonyms and both abbreviations and full terms. Not a 4 because common variations users would actually utter (e.g., "given when then", "acceptance criteria", "example mapping") are all present, not just a few.

Distinctiveness Conflict Risk

The BDD/Gherkin/Cucumber niche is clear with distinct trigger terms ("gherkin", "cucumber", "three amigos", "example mapping") that would not naturally fire for a generic testing or unit-testing skill. Not a 4 because the triggers are tightly scoped to this domain; there is no meaningful overlap with adjacent skills.