oauth-implementation
Implement secure OAuth 2.0, OpenID Connect (OIDC), JWT authentication, and SSO integration. Use when building secure authentication systems for web and mobile applications.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill oauth-implementation- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads oauth-implementation automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
OAuth Implementation
Table of Contents
Overview
Implement industry-standard OAuth 2.0 and OpenID Connect authentication flows with JWT tokens, refresh tokens, and secure session management.
When to Use
- User authentication systems
- Third-party API integration
- Single Sign-On (SSO) implementation
- Mobile app authentication
- Microservices security
- Social login integration
Quick Start
Minimal working example:
// oauth-server.js - Complete OAuth 2.0 implementation
const express = require("express");
const jwt = require("jsonwebtoken");
const crypto = require("crypto");
const bcrypt = require("bcrypt");
class OAuthServer {
constructor() {
this.app = express();
this.clients = new Map();
this.authorizationCodes = new Map();
this.refreshTokens = new Map();
this.accessTokens = new Map();
// JWT signing keys
this.privateKey = process.env.JWT_PRIVATE_KEY;
this.publicKey = process.env.JWT_PUBLIC_KEY;
this.setupRoutes();
}
// Register OAuth client
registerClient(clientId, clientSecret, redirectUris) {
this.clients.set(clientId, {
clientSecret: bcrypt.hashSync(clientSecret, 10),
// ... (see reference guides for full implementation)
Reference Guides
Detailed implementations in the references/ directory:
| Guide | Contents |
|---|---|
| Node.js OAuth 2.0 Server | Node.js OAuth 2.0 Server |
| Python OpenID Connect Implementation | Python OpenID Connect Implementation |
| Java Spring Security OAuth | Java Spring Security OAuth |
Best Practices
✅ DO
- Use PKCE for public clients
- Implement token rotation
- Store tokens securely
- Use HTTPS everywhere
- Validate redirect URIs
- Implement rate limiting
- Use short-lived access tokens
- Log authentication events
❌ DON'T
- Store tokens in localStorage
- Use implicit flow
- Skip state parameter
- Expose client secrets
- Allow open redirects
- Use weak signing keys
FAQ
What does the oauth-implementation skill do?
Implement secure OAuth 2.0, OpenID Connect (OIDC), JWT authentication, and SSO integration. Use when building secure authentication systems for web and mobile applications.
How do I install oauth-implementation?
Run npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill oauth-implementation in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/oauth-implementation/ (personal) or .claude/skills/oauth-implementation/ (project).
Which AI agents can use oauth-implementation?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is oauth-implementation safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains oauth-implementation?
It is published by aj-geddes in aj-geddes/useful-ai-prompts. It has 553 recorded installs.
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