Content
72%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.
An efficient, well-structured body that appropriately pushes implementation detail into references/rule.md and keeps the SKILL.md overview lean. Its weakness is executional concreteness: tool names and a byte budget are mentioned, but no runnable commands or async-loading pattern are given in the body, and the workflow lacks validation checkpoints such as verifying rendering or re-measuring LCP after inlining.
Suggestions
Add one copy-paste-ready example to the body, e.g. `npx critical index.html dist/index.html --inline` or a minimal build-plugin snippet, and the async-loading pattern (`<link rel="preload" ... onload>` trick) so the Fix step is executable rather than directive.
Add explicit validation checkpoints after Fix — e.g. confirm the above-the-fold render is unchanged at mobile/desktop breakpoints and re-measure LCP/FCP with Lighthouse — to lift workflow clarity.
Make the Check → Fix ordering an explicit numbered workflow so the sequence (analyze, inline, verify) is unambiguous rather than implied by section order.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The ~30-line body is lean with no padding or concept tutorials; the Quick Reference bullets, short task sections, and a one-line rationale ('directly improving LCP and FCP scores') each earn their place. It assumes Claude's competence and defers detail to references/rule.md, matching the 5 anchor. | 5 / 5 |
Actionability | Some concrete anchors exist — 'Inline ~14KB', 'Use tools: critical, critters, or Lighthouse', 'Load remaining CSS asynchronously' — but there is no executable command or config example (e.g., how to actually run `critical`, or the preload/async pattern), and the Check/Fix sections are high-level directives like 'Extract and inline critical CSS for above-the-fold content'. This lands on the 3 anchor: concrete guidance present but incomplete with key execution details missing. | 3 / 5 |
Workflow Clarity | The Check → Fix → Explain → Code Review sections give a recognizable sequence with 'Check' preceding 'Fix', but there are no validation checkpoints (e.g., verify the inlined page renders correctly or measure LCP before/after). This matches the 3 anchor: sequence present but checkpoints missing or implicit; it does not reach 4, which requires most checkpoints to be present. | 3 / 5 |
Progressive Disclosure | Clear, well-organized overview sections with a clearly signaled one-level-deep reference — 'For full implementation details, code examples, and framework-specific guidance, see `references/rule.md`' — and the referenced file exists in the bundle. Content is appropriately split (details and code examples live in rule.md), matching the 5 anchor. | 5 / 5 |
Total | 16 / 20 Passed |