Content
76%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 concise, well-structured, and largely actionable with executable detection snippets and a clear external reference. Its main weakness is workflow clarity — the PoC and detection steps lack explicit validation checkpoints or a verify-then-proceed loop.
Suggestions
Add an explicit validation/verification checkpoint in the PoC framing section (e.g. confirm the inferred value against a known victim state before reporting severity) to lift workflow clarity above 3.
Provide runnable snippets for the categories currently only described (window.name, CSS style oracle, cache-timing search presence) to close the actionability gaps.
Make the detection-vs-exploitation workflow sequence explicit (host attacker page → load target in iframe → measure → infer → document) with numbered steps.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is lean and assumes Claude's competence — short category blurbs plus minimal executable snippets, no padding or explanation of basic browser concepts; every section earns its place. | 5 / 5 |
Actionability | Provides concrete, executable JavaScript snippets for timing and frame-count detection, but several categories (window.name, CSS oracle, search presence) are described rather than shown with runnable code, leaving minor gaps. | 4 / 5 |
Workflow Clarity | Categories and a PoC framing section give rough sequence, but there are no explicit validation checkpoints or feedback loops, and the detection section mixes techniques without a clear execute-then-verify flow. | 3 / 5 |
Progressive Disclosure | Well-organized into clear sections with an external canonical reference (xsleaks.dev) and a cross-reference to a related skill; no bundle files exist to split further, and structure is appropriate for a sub-50-line skill with minor navigation gaps. | 4 / 5 |
Total | 16 / 20 Passed |