Agent skill · Better Auth

Create Auth (Better Auth) skill for Claude Code, Codex and Cursor

Scaffolds sign-in for a TypeScript app with Better Auth, OAuth providers and auth pages.

Officialname: create-auth★ 225 (repo)pushed 2026-10-19SKILL.md on GitHubchecked 2026-11-07

What it does, in the publisher's words

Scaffold and implement authentication in TypeScript/JavaScript apps using Better Auth. Detect frameworks, configure database adapters, set up route handlers, add OAuth providers, and create auth UI pages. Use when users want to add login, sign-up, or authentication to a new or existing project with Better Auth.

The description field of the SKILL.md. The agent reads only this at startup and decides from it when to load the full skill.

Install Create Auth (Better Auth)

The skills CLI copies the skill into the folder of each agent you pick (Claude Code, Codex, Cursor, Copilot, Gemini CLI, OpenCode, Windsurf...). Add -g for all projects. Needs Node.js 22.20+. docs

npx skills add better-auth/skills --skill create-auth

This repo is a plugin marketplace. Inside Claude Code, add it and install the plugin that holds the skill (auth-skills), or copy only this skill into ~/.claude/skills. docs

/plugin marketplace add better-auth/skills
/plugin install <plugin>@better-auth-agent-skills

# or only this skill:
npx skills add better-auth/skills --skill create-auth -a claude-code

Download the skill folder, zip it, then Customize > Skills > + > Create skill > Upload a skill. Code execution must be on (Settings > Capabilities). docs

git clone --depth 1 https://github.com/better-auth/skills.git /tmp/create-auth-src
cp -r /tmp/create-auth-src/better-auth/create-auth ./create-auth
zip -r create-auth.zip create-auth

Codex reads skills from .agents/skills in the repo or ~/.agents/skills. Type $ in Codex to use one. docs

npx skills add better-auth/skills --skill create-auth -a codex

gh skill (GitHub CLI 2.90+, preview) installs it for Copilot in VS Code, the CLI and the cloud agent. Copilot also reads .github/skills and ~/.copilot/skills. docs

gh skill install better-auth/skills create-auth

Cursor reads .cursor/skills, .agents/skills and ~/.cursor/skills (and .claude/skills). It does not install loose skills from a GitHub URL, so copy it in. docs

npx skills add better-auth/skills --skill create-auth -a cursor

Installs from the GitHub repo; --path picks this skill out of the repo. Default scope is user (all projects). docs

gemini skills install https://github.com/better-auth/skills.git --path better-auth/create-auth

OpenCode reads .opencode/skills, ~/.config/opencode/skills and the Claude and .agents folders. docs

npx skills add better-auth/skills --skill create-auth -a opencode

Windsurf (now Devin Desktop) reads .devin/skills, .windsurf/skills and ~/.codeium/windsurf/skills. docs

npx skills add better-auth/skills --skill create-auth -a windsurf

Works with

Claude Code, Claude.ai and Claude Desktop, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode, Windsurf and other agents that read the open Agent Skills format.

What's in the SKILL.md

19 sections

Phase 1: Planning (REQUIRED before implementation)
Step 1: Scan the project
Step 2: Ask planning questions
Step 3: Summarize the plan
Phase 2: Implementation
Installation
Environment Variables
Server Config (auth.ts)
Client Config (auth-client.ts)
Route Handler Setup
Database Migrations
Database Adapters
Drizzle + PostgreSQL Setup
Drizzle Config (drizzle.config.ts)
Common Plugins
Auth UI Implementation
Security Checklist
Troubleshooting
Resources

Facts

Skill name: create-auth
Publisher: Better Auth (official)
Repo: better-auth/skills
SKILL.md size: 1,503 words, 386 lines
Repo stars: 225 (as of 2026-10-24)
SKILL.md checked: 2026-11-07

More skills from better-auth/skills

Better Auth Best Practices: Configures Better Auth server and client, database adapters, sessions and plugins.

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FAQ

What does the create-auth skill do?+

Scaffolds sign-in for a TypeScript app with Better Auth, OAuth providers and auth pages. In its own SKILL.md, Better Auth describes it as: "Scaffold and implement authentication in TypeScript/JavaScript apps using Better Auth. Detect frameworks, configure database adapters, set up route handlers, add OAuth providers, and create auth UI pages."

How do I install the create-auth skill?+

Run npx skills add better-auth/skills --skill create-auth and pick your agents, or use the tab for your agent above. In Claude Code the skill ends up in ~/.claude/skills/create-auth/SKILL.md; in Codex and Cursor in .agents/skills/create-auth/.

Does Create Auth (Better Auth) work in Codex, Cursor and Copilot, or only Claude?+

It's a standard SKILL.md, so any agent that reads the Agent Skills format can use it: Claude Code, the Claude apps, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode, Windsurf and more.

Who maintains Create Auth (Better Auth)?+

Better Auth, the company or project behind it, in the better-auth/skills repo on GitHub, last pushed 2026-10-19.

Read a skill's SKILL.md and scripts before you install it: skills aren't verified by any agent vendor. Claude skills marketplace · How to install skills · MCP servers