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Better Auth Security Best Practices

Official
better-auth·vlatest·security

Helps with authentication, security, best practices as part of implementing security and authentication workflows.

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 better-auth/skills --skill better-auth-security-best-practices -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

better-auth

Matched to the vendor's own GitHub organisation.

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

    Makes no network calls.

    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.

  • 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 better-auth/skills at 20c9e88a5c.

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

Commit
20c9e88a5c
Manifest
security/SKILL.md
Scanned
1 file, 395 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

What it does

This skill provides AI agents with expert knowledge on implementing robust authentication and security best practices. It covers topics like secure password storage, multi-factor authentication (MFA), session management, and protection against common vulnerabilities such as XSS and CSRF.

When to use it

  • When designing user authentication systems for web or mobile applications
  • When reviewing existing authentication workflows for potential security flaws
  • When educating developers on modern security practices for identity verification

Key capabilities

  • Guidance on secure password hashing algorithms (e.g., bcrypt, Argon2)
  • Implementation of multi-factor authentication strategies
  • Protection against common attacks like XSS and CSRF
  • Secure session management techniques

Example prompts

  • "How can I securely store user passwords in my application?"
  • "What are the best practices for implementing MFA in a web app?"
  • "How do I prevent CSRF attacks in my authentication system?"

Tips & gotchas

  • Ensure that any generated code or recommendations align with your application's tech stack and compliance requirements.
  • Regularly update security practices to stay ahead of emerging threats.