Mostly efficient with tight per-step code, but the Overview's 'trap vs scope' framing and the library/commentary prose add some explanation that could be trimmed; it is not a 1 because there is no generic 'what a modal is' padding and the code blocks are lean.

Provides fully executable JavaScript, HTML, and TypeScript (Playwright) snippets with concrete selectors and methods — copy-paste ready — matching the anchor for fully executable guidance.

A clearly sequenced 6-step canonical pattern with four explicit Playwright test scripts serving as validation checkpoints and a feedback loop (assert focus enters, cycles, restores, outside is inert); it is not a 2 because validation is explicit rather than implicit.

A single self-contained SKILL.md with well-organized sections and a References list of one-level-deep, clearly signaled external spec links; no nested-reference problem exists and no bundle files are needed.

Lists multiple concrete actions verbatim — 'focus-on-open, focus-cycle-within-container, Escape-closes-and-restores, return-to-trigger, and inert-the-rest-of-the-page' — matching the anchor for listing several specific concrete actions.

Explicitly answers both what (the canonical focus-management pattern covering five named behaviors) and when ('Use when authoring or reviewing any component that displays content over the page'), with an explicit trigger clause.

Natural terms a user would say are well covered — 'modal', 'dialog', 'drawer', 'popover', 'command palette' — alongside an explicit 'Use when authoring or reviewing' clause, matching the strong-coverage anchor.

Occupies a clear niche — WCAG focus management for overlay components — with distinct triggers unlikely to fire for unrelated skills; it is not a 2 because the scope is sharply bounded rather than overlapping.