Conciseness

The body is dense with earned content — measurable Gherkin ("email is sent within 30 seconds"), executable greps, terse BAD/GOOD pairs — with no explanation of concepts Claude already knows. Falls short of the 5 anchor because of minor redundancy: the closing "Verification Checklist" repeats the Step 5 checklist items, and the "Expected Output" template overlaps references/templates.md.

Actionability

Fully executable throughout: copy-paste-ready grep commands, complete Gherkin scenarios with measurable thresholds ("reset link valid for 24 hours", "min 8 chars, 1 uppercase"), a fill-in output template, and concrete BAD/GOOD rewrite pairs. This matches the 5 anchor — examples cover the common cases with no pseudocode.

Workflow Clarity

The five-step workflow is clearly sequenced and ends in an explicit validation step ("Validate with checklist before sign-off") backed by a dedicated checklist section, matching anchor 4's 'clear sequence with most checkpoints'. Not the 5 anchor because no fix-and-retry feedback loop is written (e.g., what to do when a criterion fails the checklist); not 3 since checkpoints are explicit rather than implicit.

Progressive Disclosure

SKILL.md acts as a hub with a clearly signaled References table pointing one level deep to all five real bundle files (invest-criteria.md, gherkin-examples.md, patterns-by-type.md, examples.md, templates.md — all verified to exist with distinct content, no duplication of the inline worked example). Easy navigation, appropriate split — matches the 5 anchor.

Specificity

The description lists multiple concrete actions — "Write clear, testable acceptance criteria", "applying INVEST checks", "documenting negative scenarios", "aligning product, engineering, and QA" — with comprehensive coverage of the skill's capabilities. Not the 4 anchor because there are no meaningful gaps in coverage; every listed action is specific and testable rather than generic.

Completeness

Explicitly answers both what ("Write clear, testable acceptance criteria for user stories and feature delivery") and when ("use when defining done conditions, creating measurable requirements, applying INVEST checks...") with concrete trigger phrases. This matches the 5 anchor's pattern of a what-clause plus an explicit 'use when' clause with specific triggers.

Trigger Term Quality

Good natural keyword coverage: "acceptance criteria", "user stories", "done conditions", "INVEST", "negative scenarios" — phrases a user would plausibly say. Falls short of the 5 anchor because common synonyms like "definition of done", "test cases", or "edge cases" are absent, though it is clearly above the 3 anchor's 'missing common variations' level.

Distinctiveness Conflict Risk

The niche is fairly distinct — INVEST checks and acceptance-criteria framing are unlikely to grab unrelated skills — but terms like "creating measurable requirements" and "aligning... QA" carry minor overlap risk with general requirements-engineering or test-planning skills. Clearly above anchor 3 (which would overlap broadly) but not the minimal-conflict clarity of anchor 5.