Content
88%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.
A thorough, highly actionable multi-stage guide with executable code, explicit validation checkpoints, and a clean staged workflow. Its main weaknesses are mild verbosity in framing prose and some content duplication between the body and the browser-JS reference.
Suggestions
Collapse the duplicated material (staged spine, input-classification table, DevTools locate moves) into the reference and keep SKILL.md to the overview + a pointer, trimming the body length.
Tighten motivational framing lines ('the signature is the lock on the door', 'Most hunters waste hours...') into terse guidance so every token earns its place.
Consider moving the real-paid-examples block into the reference or a separate examples file so the SKILL.md overview stays a fast entry point.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body assumes Claude's competence — it does not re-explain HMAC, Burp, or webpack — and is densely actionable, but a few framing passages ('the signature is the lock on the door', 'Most hunters waste hours') and the overlap with the reference could be trimmed. It sits above the midpoint, just short of fully lean. | 4 / 5 |
Actionability | Provides copy-paste-ready executable guidance across the common cases: DevTools XHR/fetch breakpoint steps, a console hook snippet that logs sign(input)->output, a Python HMAC signer with canonicalization notes, a Python IDOR-sweep fuzzer, and a bash bundle-secret grep — each concrete and runnable with clearly marked placeholders. | 5 / 5 |
Workflow Clarity | A clearly sequenced stage spine (locate→recover→runtime→validation→replay) with enter/goal/exit criteria per stage, a packet-first decision gate, an explicit validation stage with an `assert sign(...) == observed_sig` checkpoint, a Stage 5 readiness checklist, and a fix-retry loop ('diff the pre-hash message string, not the output hash'). Validation is present for the batch fuzzing path, so the batch cap does not apply. | 5 / 5 |
Progressive Disclosure | SKILL.md is a well-sectioned overview pointing to one clearly signaled, one-level-deep reference (references/browser-js-signing.md, verified to exist) plus cross-referenced sibling skills. Minor organization gap: the spine, input-classification table, and DevTools locate moves are duplicated between the body and the reference rather than living in one place. | 4 / 5 |
Total | 18 / 20 Passed |