Skills for Real Engineers. Straight from my .agents directory.
api-sec
Agent skill fromyaklang/hack-skills
Entry P1 category router for API security. Use when choosing between API recon, authorization, token abuse, and hidden-parameter workflows before any deeper API topic skill.
How to install api-sec
npx skills add yaklang/hack-skills# or add only this skill to Claude Code: copy the folder
skills/api-sec/
# into
~/.claude/skills/api-sec/ (all projects)
.claude/skills/api-sec/ (one project)
1# API Security Router23This is the routing entry point for API security testing.45Use this skill first to decide whether the API issue is mostly recon/docs, object authorization, token trust, or GraphQL/hidden parameters, then route to a deeper topic skill.67## When to Use89- The target exposes REST APIs, mobile backends, or GraphQL endpoints10- You need to define API testing order before going into specific topics11- You want to handle object authorization, JWT, GraphQL, and hidden fields as separate tracks1213## Skill Map1415- [API Recon and Docs](../api-recon-and-docs/SKILL.md): OpenAPI, Swagger, version drift, hidden documentation16- [API Authorization and BOLA](../api-authorization-and-bola/SKILL.md): BOLA, BFLA, method abuse, hidden writable fields17- [API Auth and JWT Abuse](../api-auth-and-jwt-abuse/SKILL.md): bearer token, header trust, claim abuse, rate-limit bypass18- [GraphQL and Hidden Parameters](../graphql-and-hidden-parameters/SKILL.md): introspection, batching, undocumented fields, hidden parameters1920## Quick Triage2122| Observation | Route |23|---|---|24| Swagger or OpenAPI is present | [api-recon-and-docs](../api-recon-and-docs/SKILL.md) |25| IDs appear in URL, JSON, headers, or GraphQL args | [api-authorization-and-bola](../api-authorization-and-bola/SKILL.md) |26| JWT token visible in traffic | [api-auth-and-jwt-abuse](../api-auth-and-jwt-abuse/SKILL.md) |27…
Excerpt shown under the repository's MIT license.
More skills in hack-skills
- ▸401-403-bypass-techniques
- ▸active-directory-acl-abuse
- ▸active-directory-certificate-services
- ▸active-directory-kerberos-attacks
- ▸ai-ml-security
- ▸android-pentesting-tricks
- ▸anti-debugging-techniques
- ▸api-auth-and-jwt-abuse
- ▸api-authorization-and-bola
- ▸api-recon-and-docs
- ▸arbitrary-write-to-rce
- ▸attack-surface-mapping
Similar skill repositories
An agentic skills framework & software development methodology that works.
Public repository for Agent Skills
Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.
Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More
Production-grade engineering skills for AI coding agents.
