Official agent skill

Auth

Authentication integration guidance — Clerk (native Vercel Marketplace), Better Auth, Descope, and Auth0 setup for Next.js applications, plus Sign in with Vercel, Vercel Passport, and Vercel KMS.

OfficialCustom licenceAuto-check: notesBackend & APIs

Install Auth

skills CLI

$ npx skills add vercel/vercel-plugin --skill auth -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install vercel/vercel-plugin auth --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/auth .claude/skills/auth && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "auth" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/auth into .claude/skills/auth/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/vercel/vercel-plugin/tree/main/skills/auth

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add vercel/vercel-plugin --skill auth -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install vercel/vercel-plugin auth --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/auth .agents/skills/auth && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "auth" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/auth into .agents/skills/auth/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add vercel/vercel-plugin --skill auth -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install vercel/vercel-plugin auth --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/auth .cursor/skills/auth && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "auth" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/auth into .cursor/skills/auth/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/vercel/vercel-plugin.git --path skills/auth

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add vercel/vercel-plugin --skill auth -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install vercel/vercel-plugin auth --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/auth .gemini/skills/auth && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "auth" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/auth into .gemini/skills/auth/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install vercel/vercel-plugin auth

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add vercel/vercel-plugin --skill auth -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/auth .github/skills/auth && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "auth" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/auth into .github/skills/auth/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add vercel/vercel-plugin --skill auth -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install vercel/vercel-plugin auth --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/vercel/vercel-plugin.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/auth .opencode/skills/auth && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "auth" agent skill from https://github.com/vercel/vercel-plugin/tree/main/skills/auth into .opencode/skills/auth/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: auth
GitHub stars: 301
Token cost: ~6.4k tokens
SKILL.md length: 1,469 words
Files: 2
Skills in repo: 38
Repo updated: Oct 6, 2026
First seen: Oct 7, 2026
Licence: Custom licence

At a glance

Authentication integration guidance — Clerk (native Vercel Marketplace), Better Auth, Descope, and Auth0 setup for Next.js applications, plus Sign in with Vercel, Vercel Passport, and Vercel KMS.

Works in 8 steps: Detect framework (Next.js App/Pages… → Install better-auth plus the DB driver.… → Create lib/auth.ts (server) and… → …
Implementing user authentication
SKILL.md covers Clerk (Recommended — Native…, Better Auth (Self-Hosted) and Descope
Calls npx, vercel and npm; reaches vercel.com and mcp.better-auth.com; needs CLERK_SECRET_KEY and NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY

What it does

Auth is an agent skill from vercel/vercel-plugin, published by the product's own GitHub organization. Authentication integration guidance — Clerk (native Vercel Marketplace), Better Auth, Descope, and Auth0 setup for Next.js applications, plus Sign in with Vercel, Vercel Passport, and Vercel KMS. Covers server config, route handlers, proxy.ts auth patterns, sign-in/sign-up flows, and Marketplace provisioning. Use when implementing user authentication, sessions, protected routes, or protecting deployments.

Its SKILL.md is about 6.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file.

It sits in Backend & APIs, covering Authentication and Deployment. It works with Vercel, Next.js, Better Auth and Auth0. The repository describes itself as: Comprehensive Vercel ecosystem plugin — relational knowledge graph, skills for every major product, specialized agents, and Vercel conventions. Turns any AI agent into a Vercel…

When your agent uses it

Implementing user authentication
Protected routes
Protecting deployments

Example prompts

“/auth”

Requirements

Node.js
A credential in CLERK_SECRET_KEY
A credential in NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY

Workflow steps

8 steps, taken from the first numbered list in SKILL.md.

Detect framework (Next.js App/Pages Router, SvelteKit, Nuxt, Hono…), database/ORM (prisma/schema.prisma, drizzle.config.ts, pg…
Install better-auth plus the DB driver. Provision Postgres from the Marketplace if the project has no database.
Create lib/auth.ts (server) and lib/auth-client.ts (client).
Mount the route handler at app/api/auth/[...all]/route.ts.
Migrate with npx auth@latest migrate (built-in adapter) or generate + the ORM's migrate (Prisma/Drizzle).
Protect routes: cookie check in proxy.ts, real getSession() in pages/route handlers.
Verify GET /api/auth/ok returns { "status": "ok" }, then run a sign-up → sign-in → getSession() pass.
Re-run migrate after every plugin change.

What it can do on your machine

Read from SKILL.md and the folder at commit 82fa491. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- npx
- vercel
- npm
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
- vercel.com
- mcp.better-auth.com
- api.vercel.com
- kms.vercel.com
Also links to:
- better-auth.com
- clerk.com
- github.com
- docs.descope.com
- auth0.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
- CLERK_SECRET_KEY
- NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY
- BETTER_AUTH_SECRET
- GITHUB_CLIENT_SECRET
- VERCEL_CLIENT_SECRET
- AUTH0_SECRET
- AUTH0_CLIENT_SECRET
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Auth loads about 6.4k tokens when it runs. Until then it costs about 103 tokens; SKILL.md has 1,469 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~103
When it runs · the whole SKILL.md, loaded when a task matches: ~6.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NoteMentions a .env fileSKILL.md:248
```
Add routing env vars to `.env.local`:
```

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,469 words (~6,368 tokens).

“You are an expert in authentication for Vercel-deployed applications — covering Clerk (native Vercel Marketplace integration), Better Auth (self-hosted, with data in your own database), Descope, and Auth0 for application sign-in, plus Vercel's own primitives: Sign in with Vercel (OAuth/OIDC…”

— opening of SKILL.md by vercel, Custom licence

name: auth
metadata.priority: 6
metadata.docs: https://authjs.dev/getting-started, https://nextjs.org/docs/app/guides/authentication, https://better-auth.com/llms.txt
metadata.sitemap: https://authjs.dev/sitemap.xml
metadata.pathPatterns: proxy.ts, proxy.js, src/proxy.ts, src/proxy.js, middleware.ts, middleware.js, src/middleware.ts, src/middleware.js, clerk.config.*, app/sign-in/**…
metadata.bashPatterns: \bnpm\s+(install|i|add)\s+[^\n]*@clerk/nextjs\b, \bpnpm\s+(install|i|add)\s+[^\n]*@clerk/nextjs\b, \bbun\s+(install|i|add)\s+[^\n]*@clerk/nextjs\b…
metadata.importPatterns: @vercel/kms, better-auth
retrieval.aliases: authentication, login system, sign in, auth flow, sign in with vercel, passport, kms
retrieval.intents: add auth, protect routes, manage sessions, implement login, secure api endpoints
retrieval.entities: NextAuth, Auth.js, Better Auth, betterAuth, authClient, JWT, OAuth, session, middleware, getServerSession, Vercel Passport, Okta, Microsoft Entra ID, Vercel…
retrieval.examples: add login to my app, protect this route with auth, set up NextAuth, set up Better Auth, add better auth to my next app

Outline of SKILL.md

Authentication Integrations
Clerk (Recommended — Native Marketplace Integration)
Install via Marketplace
SDK Setup
Proxy Configuration
Protect Routes
Frontend API Proxy (Core 3)
Provider Setup
Sign-In and Sign-Up Pages
Access User Data
API Route Protection
Better Auth (Self-Hosted)
Agent Workflow
Install
Environment Variables
Server Config
Route Handler
Database Schema
Client
Access Session Data (Server)
Protect Routes
Keep It Fast on Vercel
Common Mistakes
Plugins
Agent Tooling
Descope
Install via Marketplace
SDK Setup
Provider and Proxy
Sign-In Flow

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in skills/auth of vercel/vercel-plugin.

SKILL.md
.vercel.approvers

Open the folder on GitHubat commit 82fa491

Compare with similar skills

Auth next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Auth compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Auth this skillvercel/vercel-plugin	301	—	~6.4k	Automated safety check: Notes	Custom licence	today
Deploy Verceljohnku2011/boilerplates-with-ai-skills	240	—	~660	Automated safety check: Notes	MIT	1 mo ago
Workosusenotra/notra	255	—	~6.2k	Automated safety check: Pass	AGPL-3.0	today
Lunora Setup Authanolilab/lunora	283	—	~2k	Automated safety check: Pass	Custom licence	today
Better Authgiuseppe-trisciuoglio/developer-kit	355	—	~2.4k	Automated safety check: Notes	MIT	27 days ago
Better Autheinverne/dotfiles	121	—	~4k	Automated safety check: Notes	MIT	28 days ago

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Questions about Auth

What does Auth do?

Authentication integration guidance — Clerk (native Vercel Marketplace), Better Auth, Descope, and Auth0 setup for Next.js applications, plus Sign in with Vercel, Vercel Passport, and Vercel KMS. Auth is an agent skill from vercel/vercel-plugin, published by the product's own GitHub organization.js applications, plus Sign in with Vercel, Vercel Passport, and Vercel KMS.

When should I use Auth?

Auth fits situations like: implementing user authentication; protected routes; protecting deployments.

How do I install Auth in Claude Code?

Run `npx skills add vercel/vercel-plugin --skill auth -a claude-code`. Or copy the skill folder (skills/auth in vercel/vercel-plugin) into .claude/skills/auth in your project. Claude Code loads it when a task matches its description.

How do I install Auth in Codex?

Run `npx skills add vercel/vercel-plugin --skill auth -a codex`. Or copy the skill folder (skills/auth in vercel/vercel-plugin) into .agents/skills/auth in your project. Codex loads it when a task matches its description.

Can I use Auth in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add vercel/vercel-plugin --skill auth -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/auth, .gemini/skills/auth, .github/skills/auth and .opencode/skills/auth in your project.

What does Auth need to run?

Going by SKILL.md and its folder, Auth needs the command-line tools its instructions call (npx, vercel and npm) and credentials named CLERK_SECRET_KEY, NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY, BETTER_AUTH_SECRET and GITHUB_CLIENT_SECRET. Our summary lists: Node.js; A credential in CLERK_SECRET_KEY; A credential in NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY.

Does Auth access the network?

SKILL.md names 9 domains. In commands or code: vercel.com, mcp.better-auth.com, api.vercel.com and kms.vercel.com; the agent is likely to contact these when it follows the instructions. As links in the text: better-auth.com, clerk.com, github.com, docs.descope.com and auth0.com. This is read from the text; nothing was executed.

Is Auth safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Auth use?

Auth has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Auth use?

About 6.4k tokens (SKILL.md is roughly 25k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Auth?

Skills that share tags, products or a category with Auth: Deploy Vercel (johnku2011/boilerplates-with-ai-skills, 240 stars), Workos (usenotra/notra, 255 stars), Lunora Setup Auth (anolilab/lunora, 283 stars) and Better Auth (giuseppe-trisciuoglio/developer-kit, 355 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Auth?

vercel (a GitHub organization, an official publisher) maintains it in vercel/vercel-plugin, which has 301 GitHub stars. The repository holds 38 skills in this directory. The repository was last updated on October 6, 2026.

Source: vercel/vercel-plugin on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Auth

Install Auth

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

Deploy Vercel

Workos

Lunora Setup Auth

Better Auth

Better Auth

Configuring Better Auth

More from vercel/vercel-plugin

Deployments Cicd

Plugin Audit

Vercel CLI

AI Gateway

Vercel Services

Access Protected Vercel Deployment

Questions about Auth

Install Auth

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

More from vercel/vercel-plugin

Related

Questions about Auth