Conciseness

The body is lean and assumes Claude's competence (e.g., skips explaining Drizzle or PGlite), but a few parenthetical asides like the health special-case and deck rationale add mild padding that could be trimmed.

Actionability

Provides copy-paste-ready code for service logic, imports, and tests, plus concrete commands (npm run db:generate/migrate) and an explicit folder layout covering the common cases.

Workflow Clarity

An eight-step numbered sequence is clearly laid out, but there are no explicit validation checkpoints after the destructive db:migrate step or the test step, which the rubric flags for database operations.

Progressive Disclosure

Well-organized into focused sections with inline code kept brief and external concepts (zine authoring, deck Decisions) signaled via pointer to the author-zine skill and src/zine.md rather than inlined; no nested references, but pointers are textual rather than linked files.

Specificity

Lists several concrete capabilities (folder shape, deck choice, view wiring, testing, zine) tied to a named domain, though some are procedural phases rather than discrete actions, leaving minor coverage gaps.

Completeness

Explicitly states what it covers ('folder shape, which deck it belongs in, wiring it to a view, testing it, and when to give it a zine') and when to use it ('Use when adding a new Skylark service'), satisfying both what and when with concrete triggers.

Trigger Term Quality

Leads with a natural 'Use when adding a new Skylark service' trigger and surfaces relatable terms (service, deck, view, zine); a few common phrasings a user might say are absent, so not fully comprehensive.

Distinctiveness Conflict Risk

Scoped to a unique Skylark-specific concept ('the native unit of data + logic + doors'), giving it a clear niche with minimal overlap against generic coding skills.