Content
50%Weight 40%Scale 1-3Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The body is a well-organized but verbose agent-definition catalogue: it lists security topics comprehensively yet provides little executable guidance and no code examples. It reads as a capabilities inventory rather than a skill that drives concrete action. Tightening redundancy and adding concrete rules/examples would raise the score.
Suggestions
Replace the descriptive Capabilities taxonomy with concrete, actionable rules (e.g., 'Use textContent for all dynamic text; if HTML is required, sanitize with DOMPurify and a strict allowlist') and at least one copy-paste-ready code example.
Collapse the redundant Purpose, Capabilities, Behavioral Traits, and Knowledge Base sections into one concise list of decision rules to remove restatement and cut tokens.
Add explicit validation/feedback checkpoints to the Response Approach (e.g., 'After applying CSP, verify with a violation-report endpoint and iterate') rather than a single abstract test step at the end.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is a ~150-line taxonomy that largely enumerates concepts Claude already knows (CSP directives, SRI, Trusted Types, PKCE, WebAuthn), and the Purpose, Capabilities, Behavioral Traits, and Knowledge Base sections overlap heavily; the opening 'Instructions' bullets are generic filler. It is not patronizing, but it is padded and could be tightened. | 2 / 3 |
Actionability | A few concrete rules exist ('Always prefers textContent over innerHTML', 'Sanitizes all dynamic content with ... DOMPurify', clickjacking only in production), but most of the document is descriptive topic listings rather than executable guidance, with no code, commands, or worked examples. | 2 / 3 |
Workflow Clarity | The 'Response Approach' gives a 9-step sequence ending with a 'Test security controls' verification step, but the steps are abstract ('Assess', 'Implement', 'Configure') with no explicit validate-fix-retry checkpoints between them. | 2 / 3 |
Progressive Disclosure | Sections are cleanly headed and there are no deeply nested references, but everything is inline in a single ~150-line file with no external bundle files; the large capabilities catalogue could be split into reference files for better discovery. | 2 / 3 |
Total | 8 / 12 Passed |