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auth

Authentication integration guidance — Clerk (native Vercel Marketplace), Descope, and Auth0 setup for Next.js applications. Covers middleware auth patterns, sign-in/sign-up flows, and Marketplace provisioning. Use when implementing user authentication.

72

Quality

90%

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SKILL.md
Quality
Evals
Security

Quality

Content

80%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A high-quality reference skill: concrete, executable guidance for three providers with no conceptual padding. The main gaps are the absence of validation checkpoints in setup workflows and no progressive disclosure into separate reference files.

Suggestions

Add an explicit verification step per provider (e.g., 'visit /dashboard while signed out and confirm the redirect to /sign-in') so the setup workflow has a validation checkpoint.

Move the Clerk Core 3 breaking-changes detail and per-provider deep dives into reference files under references/ and link to them from the body, raising progressive disclosure.

For destructive migrations like the `npx @clerk/upgrade` codemod, include a backup/rollback note and a re-validate loop.

DimensionReasoningScore

Conciseness

Lean and dense with executable code/commands; never explains what auth is or how libraries work, and time-sensitive Core 3 changes are isolated in a dated section. Every token earns its place across the three providers.

3 / 3

Actionability

Fully executable, copy-paste-ready examples throughout — `vercel integration add clerk`, `npm install @clerk/nextjs`, complete middleware/provider/route-protection TypeScript, and explicit env-var lists for each provider.

3 / 3

Workflow Clarity

Per-provider setup is clearly sequenced (install → middleware → provider → pages → protect) and a decision matrix guides selection, but there are no explicit validation checkpoints or verify steps to confirm the auth flow works.

2 / 3

Progressive Disclosure

Well-organized with clean per-provider sections, a decision matrix, and one-level cross-references, but everything is inline in one ~316-line file with no bundle reference files; the breaking-changes and per-provider deep dives could be split out.

2 / 3

Total

10

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12

Passed

Description

100%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, third-person description that names concrete providers and actions and pairs them with an explicit Use-when trigger. It avoids fluff and is clearly distinguishable from sibling skills.

DimensionReasoningScore

Specificity

Names three concrete providers (Clerk, Descope, Auth0) and multiple specific actions — "middleware auth patterns, sign-in/sign-up flows, and Marketplace provisioning" — rather than vague language.

3 / 3

Completeness

Explicitly answers both what (Clerk/Descope/Auth0 setup, middleware, flows, provisioning) and when via the explicit "Use when implementing user authentication" trigger clause.

3 / 3

Trigger Term Quality

Uses natural terms a user would say — "user authentication", "sign-in/sign-up flows", "middleware auth" — covering common phrasings; "Marketplace provisioning" is the only jargony outlier.

3 / 3

Distinctiveness Conflict Risk

Scoped to auth for Next.js on Vercel with three named providers and explicit triggers, giving it a clear niche unlikely to fire for unrelated skills.

3 / 3

Total

12

/

12

Passed

Validation

87%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

Total

14

/

16

Passed

Repository
openai/plugins
Reviewed

Table of Contents

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