Conciseness

The body is lean and assumes Claude's competence — "Verification is not a recap. It proves or disproves a specific claim with repeatable evidence" — with no padding or explanations of concepts Claude already knows.

Actionability

Provides concrete, executable guidance: a numbered workflow, an artifact layout tree, exact verdict values, and a copy-paste output template; minor gaps in that no specific commands for capturing baseline/treatment are shown.

Workflow Clarity

A clear six-step sequence with explicit verdict criteria acting as validation checkpoints; this is a read-only measurement skill so the destructive/batch cap does not apply, but per-step checkpoints are slightly implicit rather than spelled out.

Progressive Disclosure

Single-purpose skill with well-organized sections and no external references needed; no bundle files exist, and content is appropriately contained in one file with clear navigation.

Specificity

Lists multiple concrete actions — "restate it falsifiably, capture baseline and treatment, compare artifacts, and return VERIFIED, NOT VERIFIED, or INCONCLUSIVE" — giving comprehensive coverage of the verification workflow.

Completeness

The "what" is clear and concrete, but there is no explicit "Use when..." clause or equivalent trigger guidance in the description, capping completeness at 3 per the rubric guidelines.

Trigger Term Quality

"Verify a claim" is a natural trigger phrase, but the description lacks synonyms and common variations (e.g. "prove it works", "did this fix it", "show me the evidence") that appear only in the body, not the description.

Distinctiveness Conflict Risk

The baseline/treatment verification niche is mostly distinct with minimal conflict risk, though the absence of explicit triggers leaves minor overlap with general testing/debugging skills.