Tests API authentication mechanisms for weaknesses including broken token validation, missing authentication on endpoints, weak password policies, credential stuffing susceptibility, token leakage in URLs or logs, and session management flaws. The tester evaluates JWT implementation, API key handling, OAuth flows, and session token entropy to identify authentication bypasses. Maps to OWASP API2:20
Scanned 9/10/2026
Install to Claude Code
Skills Directorynpx -y skills add nexuslinkproductions/yuri-os --skill cyber-testing-api-authentication-weaknesses --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: cyber-testing-api-authentication-weaknesses
description: "Tests API authentication mechanisms for weaknesses including broken token validation, missing authentication on endpoints, weak password policies, credential stuffing susceptibility, token leakage in URLs or logs, and session management flaws. The tester evaluates JWT implementation, API key handling, OAuth flows, and session token entropy to identify authentication bypasses. Maps to OWASP API2:20"
hide: true
---
<!-- GENERATED:YURI-CODEX-SKILL-ADAPTER:v1 -->
# YURI skill adapter
Authoritative source: `.claude/skills/cyber-testing-api-authentication-weaknesses/SKILL.md`
Authoritative source SHA-256: `739cba896371943f139bba8c83cc7a4fbbe8308d1bb7fa1cc585b17d0aab90ad`
Source class: `cyber-armed`
Before acting, read the authoritative source file above completely from beginning to end. If the governed source is absent, run `node _SYSTEM/Scripts/skill-recall.mjs --show cyber-testing-api-authentication-weaknesses` and read its complete verified output. Follow that source as the skill body; this adapter is a non-authoritative metadata-and-pointer projection.
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