Content
65%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-organized, token-efficient overview that frames Sign in with Vercel correctly and gives useful when/when-not guidance. However, it stops at the conceptual level — without the actual OAuth endpoints, scope names, or a token-exchange example, Claude cannot implement the flow from this skill alone.
Suggestions
Add the concrete OAuth endpoints (authorization URL, token endpoint) and the list of available scopes so the flow can actually be implemented.
Include a short code example of the authorization-code exchange and ID token verification, since 'use any standard OAuth 2.0 client library' leaves the critical token-validation step unspecified.
Trim the opening 'You are an expert in...' line, which duplicates the 'What It Is' section.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Mostly lean with dense, useful tables (token lifetimes, when/when-not lists), but the opening 'You are an expert in Sign in with Vercel...' line duplicates the 'What It Is' section and could be trimmed. | 4 / 5 |
Actionability | Provides some concrete facts (registration console URL, token lifetimes, 'any standard OAuth 2.0 client library') but is missing the key implementation details — authorization endpoint URL, token endpoint, available scopes, redirect URI format — and contains no code example for the token exchange. | 3 / 5 |
Workflow Clarity | The OAuth flow is a coherent 5-step numbered sequence and Configuration is a 3-step sequence, but there are no validation checkpoints (e.g., verify the ID token signature, check the state parameter) and no error-recovery guidance. | 3 / 5 |
Progressive Disclosure | No bundle files exist and the body is under 50 lines with well-organized sections and a single clearly signaled one-level-deep reference to the official docs URL, which merits a 5 under the simple-skill exception. | 5 / 5 |
Total | 15 / 20 Passed |