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.
The content is highly actionable with executable detection code and tooling commands, but it is over-inlined for its length, repeats boilerplate, and lacks the validation checkpoints and file-split structure expected of a skill this size.
Suggestions
Move the full scanner class implementations into a ./references/ file (e.g. xss-scanner.ts) and keep SKILL.md as an overview that links to it, raising progressive_disclosure and conciseness.
Add an explicit validation step in the workflow (e.g., 'Triage each finding: confirm user-controlled input reaches the sink before reporting; re-run the scanner after fixes to verify resolution').
Trim the repeated persona line, the circular 'Use this skill when' bullets, and obvious explanations (e.g., that v-html renders raw HTML) that Claude already knows.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is code-heavy and mostly earns its tokens, but it repeats the description's persona line, includes tautological boilerplate ('Working on xss vulnerability scanner for frontend code tasks'), and inlines full class scaffolding (XSSScanner, ReactXSSScanner, VueXSSScanner, SecureCodingGuide, XSSReportGenerator) that restates XSS basics Claude already knows. | 3 / 5 |
Actionability | Provides concrete, largely copy-pasteable TypeScript detection logic plus runnable commands ('npm install --save-dev eslint-plugin-security', 'semgrep --config=p/xss --json'), with only minor gaps such as the scanner using fs.readFile without an import. | 4 / 5 |
Workflow Clarity | Sections 1–6 give a clear sequence (detect → framework-specific → secure examples → automation → report → checklist), but there are no validation/verification checkpoints to triage false positives, which matters even for a read-only scanner producing findings. | 3 / 5 |
Progressive Disclosure | Section headers are well-organized, but at ~322 lines the skill far exceeds the under-50-line simple-skill exception, inlines large reference-style code blocks that belong in separate files, and contains no external references at all. | 3 / 5 |
Total | 13 / 20 Passed |