The body is lean — executable code with brief, useful comments and no concept bloat or library-explaining filler; it assumes Claude's competence and avoids verbosity. A few inline result comments could be trimmed, but it stays closer to the 'every token earns its place' anchor than the 'mostly efficient' anchor.

Provides fully executable TypeScript with real imports, concrete function calls, and shown return values (e.g. 'Set { "Card", "Metric", "Button" }'), making examples copy-paste ready; not level 2 because the core examples are complete and executable rather than pseudocode.

As a reference/API doc skill it has no fragile multi-step workflow requiring validation checkpoints, and per the simple-skill guidance its clearly sequenced, unambiguous sections (Installation, Tree Traversal, Serialization, Types, Building a Custom Generator) qualify for the top anchor.

Content is self-contained in one well-organized file with no nested external references (none exist), clear section headings, and no monolithic wall of text or multi-level reference chains; the simple-skill guidance permits the top anchor for well-organized single-file references.

Lists multiple concrete actions — 'generating code from UI specs, building custom code exporters, traversing specs, or serializing props' — matching the anchor for listing several specific actions; not level 2 because the actions are comprehensive rather than partial.

Explicitly answers both 'what' ('Code generation utilities for json-render') and 'when' via an explicit 'Use when ...' clause with concrete triggers; not level 2 because the 'when' is stated explicitly rather than only implied.

Phrases like 'generating code from UI specs', 'building custom code exporters', 'traversing specs', and 'serializing props' are natural terms a user would say; third-person voice is used throughout; not level 2 because coverage includes multiple natural variations rather than a single keyword.

Scoped to a specific package (@json-render/codegen) with distinct triggers, giving it a clear niche unlikely to conflict with unrelated skills; not level 2 because the scope is sharply defined rather than merely 'somewhat specific'.