Content
57%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The content is a clean, well-organized instruction skill with good progressive disclosure to a real reference file. Its weaker dimensions are actionability and workflow clarity, where the Fix guidance stays somewhat abstract and lacks a verification checkpoint after replacing eval calls.
Suggestions
Add a concrete before/after code example for the most common replacement (e.g., eval(data) -> JSON.parse(data), and setTimeout('doX()', 0) -> setTimeout(doX, 0)) so the Fix is copy-paste ready.
Add a verification step after fixing, e.g., confirm the replacement preserves behavior and that no string-argument setTimeout/setInterval or new Function remains via a follow-up search.
Trim the intro's background explanation of XSS consequences; keep only what Claude needs to prioritize the rule.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is mostly lean and well-sectioned, but the intro paragraph explains eval/XSS background ("stealing sessions, making requests as the user, or redirecting to malicious sites") that Claude already knows, and the Quick Reference partly restates it. | 2 / 3 |
Actionability | The Check and Fix sections name specific APIs and replacements (eval -> JSON.parse, setTimeout string -> function reference, new Function flagged), but "object lookups for dynamic dispatch" is abstract and no complete executable example demonstrates the replacement. | 2 / 3 |
Workflow Clarity | The Check/Fix/Explain/Code Review sections read as parallel modes rather than one clearly sequenced, validated workflow; for a fix that changes code there is no verification step confirming the replacement preserves behavior. | 2 / 3 |
Progressive Disclosure | The under-50-line body is organized into clear sections and signals a real one-level-deep reference ("For full implementation details, code examples, and framework-specific guidance, see references/rule.md"), matching the well-signaled one-level-deep anchor. | 3 / 3 |
Total | 9 / 12 Passed |