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Better Auth

Checked
mrgoonie·vlatest·security

Automates complex authentication workflows, bypassing common hurdles and improving login success rates securely.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add mrgoonie/claudekit-skills --skill better-auth -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

mrgoonie

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Only contacts known or declared hosts: api.github.com.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

    Hosts contacted

    api.github.comsource host

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned mrgoonie/claudekit-skills at 80113d86bc.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
80113d86bc
Manifest
.claude/skills/better-auth/SKILL.md
Scanned
8 files, 2,847 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

The better-auth skill integrates the better-auth library into AI agent workflows to handle secure user authentication. It enables agents to manage login sessions, verify identities, and protect application endpoints using industry-standard security practices. This tool is essential for building trustworthy applications where user data privacy and access control are critical.

When to use it

  • Implementing secure sign-in flows (email/password, OAuth) for AI-powered web applications.
  • Protecting sensitive API endpoints that require user verification before execution.
  • Managing session persistence and token refresh logic within autonomous agent loops.
  • Enforcing role-based access control (RBAC) to restrict agent capabilities based on user permissions.

Key capabilities

  • Provides a robust authentication layer with support for multiple providers (Google, GitHub, etc.).
  • Handles secure cookie management and session validation automatically.
  • Offers built-in middleware to protect routes from unauthorized access.
  • Simplifies the integration of complex auth logic into AI agent codebases.

Example prompts

  • "Set up a secure login system using better-auth for my new AI dashboard."
  • "How do I configure OAuth providers with better-auth to allow users to log in via Google?"
  • "Create a protected route that requires user authentication before the AI agent can access data."

Tips & gotchas

Ensure your backend environment variables (like database URLs and secret keys) are properly configured before initializing the auth instance. Always validate tokens on the server side, even if client-side checks are in place, to prevent session hijacking.