Conciseness

The body is dense and assumes competence ("Patch narrowly — avoid churn-only rewrites", terse mode/layer tables) with no padding or explanation of known concepts, so it is above anchor 3. It stays at 4 rather than 5 because the seven-step "Operating mode" order substantially duplicates the "Skill architecture workflow" (classify/gather, plan artifact, verify mechanically/verify and hand off), and verification emphasis repeats across three sections — trims are available, though minor.

Actionability

Concrete guidance throughout: exact script names and flags (`fix_skill.py --write`, `--author`, `--openai-yaml`, `python -E -B`), a mode table with per-mode references and outputs, and a layer table routing each check to its decider. It is not 5 because no complete verbatim invocation appears in the body — exact commands are deferred to references/helper-runtime.md, leaving a minor gap for the most common validation action.

Workflow Clarity

Every ordered step carries a checkable "Done when" completion criterion, fix mode is explicitly dry-run-first with a validate-after feedback loop ("only apply `fix_skill.py --write` ... then run `validate_skill.py`"), the audit packet is a per-check decision table, and reporting demands "exactly what passed, failed, or was skipped". This is the anchor-5 pattern: explicit validation, error-recovery loops, and checklists.

Progressive Disclosure

SKILL.md stays routing-focused ("Keep `SKILL.md` focused on routing and immediate behavior") while all detail lives in one-level-deep, real bundle files: the six references are linked via a "Load when" table, all five helper scripts plus requirements.txt are linked with use descriptions, and assets/evals/scenarios.json is disclosed as test input — every referenced path exists in the bundle. Navigation is easy and well-signaled, matching anchor 5.

Specificity

"Create, audit, and refactor portable agent skills (`SKILL.md`)" names three concrete actions with a concrete artifact, but the capability clause omits the plan, compare, distill, reconcile, and teach modes that the body implements — those surface only as trigger phrases. This matches anchor 4 (several specific actions, minor gaps in coverage) rather than 5, whose capability coverage would be comprehensive.

Completeness

Explicitly answers both questions: the "what" is "Create, audit, and refactor portable agent skills (`SKILL.md`)" and the "when" is a full "Use when asked to..." clause with concrete trigger phrases plus path- and mention-based triggers. This is a clear anchor-5 match; it is not 4 because the when-clause is maximally explicit, not merely present.

Trigger Term Quality

Extensive natural trigger phrases with synonyms and file-level detail: "create a skill", "review a skill", "improve a skill", "compare skill rubrics", "distill a skill from sessions", path triggers like `skills/<name>/SKILL.md`, `references/*.md`, lockfiles, security manifests, and mention triggers like skill-creator, skills.sh, and progressive disclosure. Coverage of natural terms is comprehensive, matching the anchor-5 example's breadth.

Distinctiveness Conflict Risk

The niche (authoring/auditing portable agent skills) is distinct, anchored by triggers like `skills/<name>/SKILL.md`, skill rubrics, lockfiles, and progressive disclosure that few other skills would claim. The deliberate "skill-creator" mention trigger overlaps a closely related skill, but it is scoped to comparing/auditing upstream rubrics — the closest anchor is still 5, not 4, since overall conflict risk is minimal and domain-unique.