Conciseness

The body avoids tutorial fluff (no explanation of what Cucumber/BDD is) but repeats its two core messages across sections: the modify-vs-create-new-scenario guidance appears in Principle 6, the Step 1 classification, and Step 5's subsection — with the same traceId example given twice nearly verbatim ("add a `traceId` header to the message this flow already publishes") — and edge-case identification is explained in Principle 4, Step 1, Step 2, and Step 5. This is more than the 'minor instances' of anchor 4 but far short of anchor 2's padding, and there is a typo ("query asse/rtions"), so it sits at anchor 3: mostly efficient but could be meaningfully tightened by consolidating the duplicated guidance.

Actionability

Fully executable throughout: copy-paste commands (`grep -o 'tzatziki-[a-z-]*' pom.xml | sort -u`, `./mvnw -pl <module> -Dtest=<RunnerClass> test`, `./gradlew :<module>:test --tests <RunnerClass>`), exact error signatures to inspect ("step(s) are undefined", `UndefinedStepException`, `ParseError`, `Tests run: 0`), concrete annotations to search for (`@Suite`, `@IncludeEngines("cucumber")`, `@SelectClasspathResource`), the correct CLI selector (`cucumber.features`), and concrete examples of illegal keyword substitution (" exactly", " at least", " only"). Specific examples cover the common cases; step-pattern examples live appropriately in the reference files.

Workflow Clarity

A clear six-step sequence with explicit validation checkpoints and feedback loops: environment verification before writing anything (Step 4, with `Tests run: 0` as a failure signature), a mandatory plan-approval gate before Step 6, a mandatory run-tests-and-fix loop after every `.feature` edit including post-implementation modifications, and a Success Criteria checklist. This is a direct match for anchor 5 (explicit validation steps, error-recovery loops, checklists); anchor 4's 'minor validation gaps' does not apply.

Progressive Disclosure

Verified against the actual bundle: all 13 files referenced in the body exist in `references/` and are substantive (266–2786 lines each), references are one level deep (the only cross-link, bootstrap-templates.md → cli-execution.md, is a lateral sibling pointer, not a chain), and the Reference Files section signals each file with a 'read when the project uses tzatziki-X' condition while Step 2 provides the dependency-based navigation. Content is appropriately split (bulk step patterns kept out of SKILL.md). One trivial gap — `steps-jackson3.md` is absent from Step 2's dependency-mapping list though indexed in the Reference Files section — is too small to drop below anchor 5.

Specificity

The description names a concrete primary action ("Generates Tzatziki-based Cucumber tests (Gherkin .feature files) from a functional specification") and enumerates trigger-level actions ("write Cucumber tests, add BDD scenarios, create feature files, generate tests") plus the concrete tech surface ("HTTP, relational database (SQL), JPA, Kafka, MongoDB, OpenSearch, logging, or MCP"). It falls just below anchor 5 because the listed actions are variations of one generation task and secondary capabilities from the body (e.g., modifying existing scenarios, running/validating tests) are absent — but it is well above anchor 3's '1-2 concrete actions' floor.

Completeness

Explicitly answers both questions with concrete trigger phrases: 'what' = "Generates Tzatziki-based Cucumber tests (Gherkin .feature files) from a functional specification", and 'when' = three dedicated clauses ("Use this skill whenever a user wants to...", "Use this skill for tests involving...", "Also use when the user mentions..."). This is a direct match for the anchor-5 good example's structure; the 4 anchor's 'when could be more explicit' does not apply here.

Trigger Term Quality

Comprehensive natural-language trigger coverage with synonyms and file extensions: "Cucumber tests", "BDD scenarios", "feature files", "generate tests", "Gherkin", ".feature files", "integration tests", "acceptance tests", "end-to-end tests", plus specific technology names (Kafka, MongoDB, OpenSearch, MCP). It clearly matches anchor 5 (synonyms + file extensions present); anchor 4 would require noticeable missing natural terms, and none are evident.

Distinctiveness Conflict Risk

It occupies a clear niche — Tzatziki-based Cucumber/BDD test generation for Java/Spring — with distinct triggers (Tzatziki, Gherkin, .feature files, specific integration tech stack). Minimal overlap risk with generic testing or code-generation skills, matching anchor 5; anchor 4 would require some overlap with closely related skills, which the specific framework name precludes.