Content
71%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 well-structured, actionable skill body with a fully executable canonical example, a decision table, a coverage checklist, and exemplary use of a single one-level-deep reference file. Its main cost is token spend on RFC quotes and flow restatements that re-explain OAuth concepts Claude already knows, plus a few placeholder-riddled reference tests.
Suggestions
Cut the RFC 6749 four-grant-type blockquote and the RFC 7636 plain/S256 definition quote down to one-line citations (e.g., "Per RFC 6749 §1.3: four grants; RFC 9700 deprecates Implicit and RO-Password; PKCE S256 only per RFC 7636 §4.2") — Claude already knows these concepts, and the deprecation facts are the only novel content.
Replace the ellipsis placeholders in references/per-flow-test-recipes.md (state-mismatch setup, nonce flow, scope-downgrade response) with complete executable code matching the quality of the refresh-rotation and redirect-URI tests.
Add a short "when a test fails" note (e.g., distinguish client bug vs. IdP non-compliance, and when to mark a critical finding) to close the workflow's error-recovery gap.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The Overview blockquotes RFC 6749's definitions of all four grant types and RFC 7636's plain/S256 definitions, and the Worked example restates the standard 5-step auth-code flow — all concepts Claude already knows. The tables, checklist, and code are dense and earn their place, so the padding is confined rather than pervasive. | 3 / 5 |
Actionability | The Worked example is fully executable (real PKCE crypto via secrets/hashlib, Playwright browser steps, token-endpoint POST with asserts), and the reference file adds runnable negative tests. However, several reference tests contain placeholder ellipses ("... initiate flow with state=expected-state ...", "response = ... # access_token", "jwt.decode(id_token, ...)") that keep them from being copy-paste ready. | 4 / 5 |
Workflow Clarity | "How to use" gives a clear 4-step sequence ending in an explicit verification step ("Run the end-to-end coverage checklist"), reinforced by a flow-selection table, a 9-item checklist, and "mark critical finding" feedback directives in the references. Minor gap: no guidance on what to do when a checklist item fails or the IdP deviates from RFC behavior during authoring. | 4 / 5 |
Progressive Disclosure | Clean split: the canonical auth-code + PKCE flow is authored inline in the Worked example while secondary grants and negative cases live in references/per-flow-test-recipes.md, which exists, is one level deep, and is clearly signaled by links in How to use, the checklist, and the References section. | 5 / 5 |
Total | 16 / 20 Passed |