Conciseness

The body teaches nothing Claude already knows and contains no filler; every line is a rule, identifier, or decision criterion ('Unknown, malformed, unavailable, and stale IDs fail closed', 'Scopes are opaque run identities. They are not selectors, persisted state, release-note input, or authorization tokens.'). The 'Stop and redesign when' recap functions as a safety checklist rather than padding.

Actionability

For an instruction-only skill the guidance is fully concrete: exact API names (createOnboardingClickStep, createOnboardingContextStep, markOnboardingTarget, captureTargetScope: true), exact commands (npm run valid-layers-check, npm run typecheck-client, npm run build-fast, Developer: Copy Feature Example Link), a copy-paste markup example (try(myFeature.guide,Try My Feature)), and decision tables covering the common cases.

Workflow Clarity

Twelve numbered sections form a coherent sequence (classify -> ownership -> presentation -> trust boundary -> scoping -> prerequisites -> Chat/AI -> Agents window -> specialist guidance -> markup -> tests -> validation) with explicit validation checkpoints: a per-capability required-coverage table (section 11), an ordered run list (section 12), and checklists ('Stop and redesign when', completion report fields).

Progressive Disclosure

The skill delegates one level deep and refuses to inline reference material: the authoritative contract goes to the onboarding README ('Read it before implementation... must not duplicate a catalogue of current tryouts'), canonical implementations and test files are linked directly, and specialist concerns are routed to six named skills. The inline content is the workflow decision logic itself, appropriately placed in SKILL.md, with twelve titled sections making navigation easy. (Referenced repo paths do not resolve in this review sandbox, but that reflects extraction from the home monorepo, not a skill defect.)

Specificity

Names the domain and enumerates many concrete objects ('commands, views, editor samples, Chat drafts, guided spotlights, prerequisites, scoped targets, or Agents-window handoff') with three action verbs ('adding, reviewing, or troubleshooting'), but never states what the skill itself does (e.g., choose interaction level, bind targets, validate the contract), leaving capability coverage incomplete.

Completeness

The description is entirely a trigger clause ('Use when adding, reviewing, or troubleshooting...') with no statement of what the skill does, matching the anchor for 'only when is present without what'. It is not a 3 because no 'what' is explicitly stated, and not a 1 because the 'when' is detailed and explicit.

Trigger Term Quality

'release-note Try This experience', 'guided spotlights', 'Chat drafts', and 'Agents-window handoff' are natural terms for this domain, but common variations users would say — 'tryout(s)', 'onboarding' — are missing, so coverage is good rather than comprehensive.

Distinctiveness Conflict Risk

'Try This experience', 'Agents-window handoff', and 'scoped targets' are product-specific triggers defining a clear niche with minimal overlap risk against any generic skill.