Conciseness

The body is lean with zero filler: no concepts Claude already knows are explained, and lines like "Zero findings is the correct and common result. Do not manufacture findings" each earn their place by steering behavior. Matches anchor 5 ('lean and efficient; assumes Claude's competence; every token earns its place'); there are no over-explanations to trim as anchor 4 requires.

Actionability

For an instruction-only skill the guidance is fully actionable: a concrete bug-pattern checklist with technical specifics (missing await, stale closures, "queries missing an organization scope", "Zod schemas vs. their users"), a real repo path (apps/app/src/app/lib/den.ts), explicit inclusion/exclusion criteria, and a precise reporting format with defined severity levels. Matches anchor 5's 'specific examples cover the common cases'; per the rubric's code_vs_instruction note, absence of code is not penalized when guidance is this concrete.

Workflow Clarity

This is a single-purpose review skill with an unambiguous action, and it includes an explicit verification checkpoint — "You read enough of the surrounding code... to rule out the obvious reason it is fine. Check and address contrary evidence before reporting" — plus the ALL-hold reporting gate. Per the simple-skill note, workflow clarity scores 5 when the single action is unambiguous; the task is read-only review, so the destructive/batch cap does not apply.

Progressive Disclosure

There are no bundle files and none are needed: the body is ~46 non-blank lines of self-contained guidance organized into clearly delimited sections (trust model, reporting criteria, patterns to seek, exclusions, output format). Nothing belongs in a separate file, there are no nested or buried references, and navigation is easy — matching anchor 5's 'content appropriately split' for a skill of this size.

Specificity

"Flag concrete bugs introduced by a merged diff" names the domain (merged diffs) and one concrete, non-generic action (flag bugs), but stops there rather than listing several specific capabilities (e.g., severity rating, root-cause attribution, fix suggestion). Matches anchor 3 ('names domain and 1-2 concrete actions, but not comprehensive'); not 2 because the action is specific rather than generic, not 4 because only one action is listed.

Completeness

Both parts are answered explicitly: the what ("Flag concrete bugs introduced by a merged diff") and a highly concrete when ("Used only by the post-merge sweep (warden-sweep.yml); never gates clearance") that names the exact triggering workflow. This satisfies anchor 5 ('clearly and explicitly answers both what AND when with concrete trigger phrases'); anchor 4's caveat ('when could be more explicit or specific') does not apply since the when names a specific workflow file and usage constraint.

Trigger Term Quality

Relevant keywords are present ("bugs", "merged diff", "post-merge", "sweep", "clearance"), but common variations and synonyms a user might naturally say — "regression", "broken", "defect", "review the merge" — are absent. Fits anchor 3 ('some relevant keywords but missing common variations or synonyms'); coverage is thinner than anchor 4's 'good keyword coverage'.

Distinctiveness Conflict Risk

The description carves out a clear niche (bugs introduced by a *merged* diff) and the "Used only by the post-merge sweep... never gates clearance" clause explicitly disambiguates it from sibling review skills (interactive code review, security review, clearance gating). Matches anchor 5 ('clear niche with distinct triggers; minimal conflict risk').