Conciseness

Mostly lean and assumes competence with focused step/code blocks; a few small explanatory asides (the INP definition quote, LoAF Baseline rationale) are justified but keep it just short of fully tight.

Actionability

Fully executable copy-paste-ready code across every step — install command, onINP usage, attribution build, a complete Playwright test including the visibilityState-redefine flush trick, long-task observer with buffered:true, and a CrUX curl — covering the common cases.

Workflow Clarity

A clear 6-step sequence with explicit validation checkpoints (budget assertions, flush behavior, guarded LoAF observer) and feedback guidance; not a destructive/batch workflow so the validation cap does not bind.

Progressive Disclosure

Well-organized into clear sections with a one-level-deep References block of external link references and no nested file indirection; no bundle files exist, so the self-contained single file is appropriate, though references are external URLs rather than split bundle files.

Specificity

Names multiple concrete actions — 'decomposes input delay, processing duration, and presentation delay via the web-vitals/attribution build', 'asserts per-interaction INP budgets in Playwright', 'identifies long tasks blocking the main thread' — giving comprehensive coverage.

Completeness

Explicitly answers both what (decompose, assert, identify long tasks) and when via a concrete 'Use when...' clause with multiple trigger scenarios and a CI gating case.

Trigger Term Quality

Strong natural terms ('page feels unresponsive', 'LCP and CLS are green', 'form submit, modal open, route change', 'INP budget in CI') but a few common synonyms users might say (e.g., 'Core Web Vitals', 'responsiveness') are only in metadata keywords, not the description itself.

Distinctiveness Conflict Risk

Clear niche (INP / interactions only) with explicit boundary guidance steering page-load gating to lighthouse-perf and SW cache latency to qa-pwa, minimizing wrong-skill triggering.