The body is lean — one-line intro, install command, two code examples, and an API table — with no padding or explanation of concepts Claude already knows (what Jotai or atoms are). Every token earns its place.

Both examples are complete and copy-paste ready (real imports, atom creation, store wiring, JSX usage), and the API table gives concrete types and required/optional flags with executable import paths.

As a simple single-purpose skill, the numbered 1-2-3 steps in the usage example make the single action unambiguous, and there are no destructive or batch operations that would demand explicit validation checkpoints.

At under 50 lines with no bundle files and no need for external references, the well-organized sections (Installation, Usage, With a Shared Jotai Store, API) satisfy the simple-skill threshold for progressive disclosure.

It names the domain ('Jotai adapter for json-render's StateStore interface') and the single adapter action, but does not list multiple distinct concrete actions; a single-purpose adapter naturally has limited action breadth, so it sits at 'names domain and some actions' rather than the multi-action level 3.

It states what the skill is ('Jotai adapter for json-render's StateStore interface') and an explicit trigger ('Use when integrating json-render with Jotai for state management via @json-render/jotai'), clearly answering both what and when.

It uses the exact natural terms a user would say — 'Jotai', 'json-render', 'state management', 'integrating' — and the package handle '@json-render/jotai', giving good coverage of the relevant keyword space.

The coupling of two specific names (Jotai + json-render StateStore) carves a narrow, well-defined niche with distinct triggers, making it unlikely to fire for an unrelated skill.