OAuth 2.0 Flaw Testing

OAuth 2.0 Flaw Testing is a Quality skill for Claude Code, published by xalgord in xalgorix.

852 stars153 forkson xalgord/xalgorixAdded 2026/08/12+1% in starsRepository updated 2026/08/11

ai-agentai-securityautomationautonomous-pentestingbug-bountycybersecurityethical-hackinggolangpenetration-testingpentestpentesting-toolsreconsecuritysecurity-researchsecurity-toolstypescriptvulnerability-detectionvulnerability-scanner

Install in seconds

Install OAuth 2.0 Flaw Testing

Copy OAuth 2.0 Flaw Testing into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/xalgorix/xalgorix/tree/main/internal/tools/skills/data/api-security/testing-oauth2-implementation-flaws ~/.claude/skills/testing-oauth2-implementation-flaws

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/xalgorix/xalgorix.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: internal/tools/skills/data/api-security/testing-oauth2-implementation-flaws/SKILL.md in xalgord/xalgorix
Installs to: ~/.claude/skills/testing-oauth2-implementation-flaws
Collection: One of 51 skills cataloged from this repository
Category: Quality — 1354 skills

What OAuth 2.0 Flaw Testing does

OAuth 2.0 Flaw Testing checks authorization code, redirect URI, PKCE, state, and token handling for security weaknesses. Use it when assessing OAuth or OpenID Connect implementations under written authorization.

OAuth 2.0 Flaw Testing is cataloged under Quality on DirSkills. OAuth 2.0 Flaw Testing comes from a repository tagged ai-agent, ai-security, automation, autonomous-pentesting and bug-bounty.

Documentation

README

Excerpt

Testing OAuth2 Implementation Flaws

When to Use

Assessing OAuth 2.0 authorization code flow for redirect URI validation weaknesses
Testing OAuth client applications for CSRF protection (state parameter usage) and PKCE enforcement
Evaluating token storage, transmission, and lifecycle management in OAuth implementations
Testing scope escalation where clients request more permissions than authorized
Assessing OpenID Connect implementations for ID token validation and nonce usage

Do not use without written authorization. OAuth testing may result in token theft or unauthorized access.

Most Often Missed & How to Confirm

This is the opening of the README. Read the full README on GitHub.

Frequently asked about OAuth 2.0 Flaw Testing

What else does xalgord publish alongside OAuth 2.0 Flaw Testing?
OAuth 2.0 Flaw Testing is one of 51 skills that DirSkills catalogs from xalgord/xalgorix, the repository it ships in. Its siblings there include AFL++ Fuzzing, AI Security Guardrails and AI-Assisted Vulnerability Discovery. Each one is a separate skill with its own page in this directory, installs the same way OAuth 2.0 Flaw Testing does, and is maintained by xalgord in that same repository. The rest of the collection is listed on the xalgord/xalgorix page.
How does OAuth 2.0 Flaw Testing compare to other Quality skills?
OAuth 2.0 Flaw Testing ranks #932 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of OAuth 2.0 Flaw Testing against them. Open each page to compare what they document and how they install.