Conciseness

Mostly dense, useful guidance, but with real redundancy over a ~360-line body: the repository-vs-business-constraints rule is stated near-verbatim three times (Operating Rules #2, the 'Discover Context' prose, and the failing-context example); Operating Rule 10 duplicates 'Handle revision' in How It Works; Rule 6 duplicates the save-to-file guidance in 'Present And Continue'; and the full passing AC example appears twice. Not 4 because the repetition is more than 'minor instances that could be trimmed'; not 2 because most sections still earn their tokens.

Actionability

Fully actionable for an instruction-only skill: a complete copy-paste-ready Full Acceptance Brief template (status, revision log, risk review table, AC-NNN fields, verification plan), a worked Quick Capture example, a boundary-category table with include-when conditions, and explicit pass/fail calibrations. Specific examples cover the common cases (quick capture, full brief, existing-spec review); anchor 4 would require notable gaps, which are absent.

Workflow Clarity

A clear six-phase Workflow (Establish Goal and Risk → Discover Context → Define Scope → Write Acceptance Criteria → Cover Relevant Boundaries → Present And Continue) with explicit validation checkpoints: a pre-return 'Quality Check' list, a yes/no 'Pass/Fail Rubric' gate, and a defined revision feedback loop ('[revised]', increment revision, re-present changed criteria). Matches the anchor-5 pattern of sequence plus explicit validation and feedback loops; not 4 because checkpoints are already explicit rather than mostly present.

Progressive Disclosure

The skill is a well-sectioned single file with no bundle files at all: the ~70-line output template, the pass/fail examples, and the boundary-category table are all inlined in a ~360-line SKILL.md, content that would naturally live in template/reference files loaded on demand. Sections are internally well organized, so this is above anchor 2 ('minimal structure'), but with zero references and everything inline it cannot reach anchor 4 ('most content appropriately placed; references mostly clear').

Specificity

Names several concrete actions — 'turn ambiguous or high-impact product and engineering changes into scoped, verifiable acceptance criteria', 'de-risk a security/data/migration/integration change', 'prepare implementation requirements for another agent', 'make a complex request testable' — but they arrive as one compound sentence rather than a clean enumerated action list, leaving minor coverage gaps (e.g., reviewing an existing PRD, which the body supports). Not 5 because the anchor-5 pattern is multiple discrete, comprehensively listed actions; not 3 because far more than 1-2 concrete actions are named.

Completeness

Explicitly answers both questions: the 'what' ('Turn ambiguous or high-impact product and engineering changes into scoped, verifiable acceptance criteria') and the 'when' via a concrete 'Use when...' clause listing five trigger conditions plus exclusions. Matches the anchor-5 example structure exactly; anchor 4 would require the 'when' to be less explicit than it is.

Trigger Term Quality

Strong natural phrases users would actually say — 'clarify a feature', 'define acceptance criteria', 'de-risk', 'prepare implementation requirements', 'make a complex request testable' — plus explicit negative triggers ('trivial edits, straightforward fixes, active debugging, code review'). Not 5 because common synonyms like 'write a spec', 'acceptance tests', or 'requirements doc' are absent; not 3 because keyword coverage is broad and includes trigger and anti-trigger terms.

Distinctiveness Conflict Risk

Clear niche (acceptance-criteria specification before/alongside implementation) with distinct triggers, and an explicit do-not-trigger list ('trivial edits, straightforward fixes, active debugging, code review') that minimizes overlap with adjacent skills. Minimal conflict risk with other skills; not 4 because the negative triggers actively fence off the closest overlaps.