Content
57%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
A compact, well-organized overview that delegates depth to a real reference file, but the in-body guidance is high-level and the workflow lacks explicit validation checkpoints. The strongest dimension is progressive disclosure; the weakest are actionability and workflow clarity, where executable examples and a verify→fix→recheck loop would lift the score.
Suggestions
Add a small executable snippet (e.g. an async/defer script tag or a Lighthouse CLI command) directly in the body so guidance is copy-paste ready without opening the reference.
Replace the marketing-style opening line with a one-line diagnostic directive, and fold the vague Check/Fix lines into a concrete numbered workflow with a validate→fix→recheck checkpoint.
Make the Code Review section's verification step explicit (e.g. 'Record a trace, confirm third-party long tasks drop below ~50ms, then stop') so the feedback loop is visible in SKILL.md.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is largely lean and assumes Claude's competence, but the opening 'Third-party scripts are the #1 cause of slow websites—unoptimized loading can add 2-5 seconds' is padded marketing-flavored context Claude already knows, and the Check/Fix lines are somewhat generic. Mostly efficient but could be tightened. | 2 / 3 |
Actionability | The Quick Reference gives concrete directives ('Use async for independent scripts', 'Lazy-load non-critical scripts after page load'), but the body itself carries no executable code or commands — the copy-paste-ready examples are offloaded to references/rule.md. Guidance is actionable but general rather than fully executable in-body. | 2 / 3 |
Workflow Clarity | Check/Fix/Explain/Code Review give a rough sequence and the Code Review section asks to 'describe the measurement method used to confirm the issue', but there is no explicit validate→fix→retry feedback loop or validation checkpoints for the diagnostic task. | 2 / 3 |
Progressive Disclosure | The body is short and well-organized into clear sections and points to the one-level-deep, clearly signaled references/rule.md (verified to exist) for implementation details, fitting the simple-skill allowance for a well-structured overview. | 3 / 3 |
Total | 9 / 12 Passed |