Auth Sec

OrganizationPopular

yaklang

auth-sec

Entry P1 category router for authentication and authorization. Use when testing login flows, sessions, object authorization, JWT, OAuth, CORS, CSRF, and enterprise SSO weaknesses before any deeper auth topic skill.

Overview

Publisher	yaklang
Repository	`hack-skills`
Skill name	`auth-sec`
Stars	2.2K
Forks	292
Bundled files	Instructions only
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by yaklang on GitHub. Read the source before you install it.

Installation

Install the Auth Sec AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/yaklang/hack-skills.git /tmp/hack-skills
mkdir -p .claude/skills
cp -r /tmp/hack-skills/skills/auth-sec .claude/skills/auth-sec

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Auth Sec in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Auth Sec on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Auth Sec is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Authentication and Authorization Router

This is the routing entry point for authentication, sessions, and authorization boundaries.

Use it to decide whether the issue is mainly login mechanics, object-level authorization, browser trust boundaries, or identity protocols such as OAuth/JWT/SAML before going deeper.

When to Use

The target includes login, registration, password reset, 2FA, sessions, JWT, OAuth, or SSO
You suspect object authorization flaws, cross-tenant access, cross-origin reads, CSRF, or protocol misconfiguration
You need to decide whether to test authentication or authorization first

Skill Map

Authentication Bypass: login bypass, password reset, 2FA, enumeration, brute-force protections
IDOR Broken Object Authorization: IDOR, BOLA, BFLA, missing object permissions
JWT OAuth Token Attacks: algorithm confusion, key trust issues, claim abuse, token forgery
OAuth OIDC Misconfiguration: redirect URI, state, nonce, PKCE, account binding
CSRF Cross Site Request Forgery: CSRF tokens, SameSite, JSON CSRF, login CSRF
CORS Cross Origin Misconfiguration: reflected Origin, credentialed cross-origin reads, allowlist bypass
SAML SSO Assertion Attacks: assertion wrapping, signature validation, audience, ACS boundaries

Recommended Flow

First confirm the authentication model and session boundaries
Then confirm object-level and function-level authorization
Then move to token, cross-origin, and protocol details
If enterprise federation exists, continue with OAuth, OIDC, or SAML topics

Related Categories

api-sec
Default credentials, username variants, wordlist sizing, and port focus are consolidated in authbypass-authentication-flaws

Frequently asked questions

What does the Auth Sec AI skill do?

Why use Auth Sec on TypingMind?

Because you install it once and use it with any model. Auth Sec is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Auth Sec in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/yaklang/hack-skills/tree/main/skills/auth-sec. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Auth Sec?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Auth Sec?

As many as you like. As long as a model supports skills, you can use Auth Sec with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Auth Sec AI skill free?

Yes. It is published on GitHub by yaklang under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

View all

Verification Before Completion

obra

CommunityPopular

Use when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before making any success claims; evidence…

Writing Plans

Use when you have a spec or requirements for a multi-step task, before touching code

Ask Matt

Ask which skill or flow fits your situation. A router over the skills in this repo.

Code Review

Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes: Standards (does the code follow this repo's documented coding standards?) and Spec (does the code match what…

Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Authentication and Authorization Router

When to Use

Skill Map

Recommended Flow

Related Categories

Frequently asked questions

Related AI Skills

Set up your own AI workspace now