Content
57%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
A dense, highly actionable reference with strong ❌/✅ code examples and useful per-metric checklists, but it functions as three parallel reference documents rather than a guided workflow, and its one bundle file (references/LCP.md) is orphaned — never linked from the body — while its content is duplicated inline. Tightening the workflow framing and wiring up the reference would lift the weaker dimensions.
Suggestions
Replace the inline LCP detail (preload/critical-CSS/SSR patterns, framework tips, and the LCP debugging observer, all of which duplicate references/LCP.md) with a short summary plus an explicit pointer like "**LCP deep dive**: See [references/LCP.md](references/LCP.md)", and consider adding INP.md/CLS.md references for symmetry.
Add an explicit ordered workflow at the top — 1. Get field data (Search Console / web-vitals), 2. Identify the failing metric with the debugging observers, 3. Apply the metric's fixes, 4. Re-measure to confirm the 75th percentile passes — so the reference sections hang off a sequence with validation checkpoints.
Fix the non-executable examples: use defineAsyncComponent for the Vue async component, note that importing a remote script URL needs a script-tag facade rather than dynamic import(), and show the React preload inside a head-management context (e.g. next/head or react-helmet).
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is mostly lean — ❌/✅ code pairs with minimal prose — but the entire LCP section (~80 lines: preload patterns, critical CSS, SSR example, framework tips, the PerformanceObserver debugging snippet) substantially duplicates references/LCP.md, so those tokens are spent twice. Matches anchor 3 ('mostly efficient but includes some unnecessary explanation or could be tightened'); not 4 because the duplication is a real, removable inefficiency, not a minor trim. | 3 / 5 |
Actionability | Nearly all guidance is executable: preload links with fetchpriority, chunked main-thread yielding, font-display/size-adjustment, aspect-ratio reserves, memoization, and copy-paste debugging observers. Falls short of anchor 5 on a few fragmentary or broken examples — the Vue async component `<component :is="() => import('./Heavy.vue')" />` is not a valid async-component pattern (defineAsyncComponent is), `import('https://heavy-widget.com/widget.js')` of a remote URL won't execute as written, and the React `<link>` snippet sits outside any head-management context. | 4 / 5 |
Workflow Clarity | The body is organized as reference material by metric (issues → fixes → checklist → debugging) but never sequences a diagnostic workflow — 'measure field/lab data → identify the failing metric → apply fixes → re-measure' is only implicit, and Measurement tools appear at the end rather than as a first step. Matches anchor 3 ('sequence present but checkpoints missing or implicit'); the per-metric checklists keep it above anchor 2, and no explicit ordered process keeps it below anchor 4. | 3 / 5 |
Progressive Disclosure | The bundle has one reference file, references/LCP.md, but the body never links to it — the References section lists only external web.dev URLs and a sibling skill — so the one bundled reference is orphaned while its content is simultaneously inlined in the body. Matches anchor 3 ('references present but not clearly signaled; content that should be separate is inline'); not 2 because the body itself is well-sectioned with clear headers and no nesting, but the unsignaled, duplicated reference prevents a 4. | 3 / 5 |
Total | 13 / 20 Passed |