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yaklang avatar

Api Recon And Docs

yaklang/hack-skills
2.7k installs1.6k stars
Summary

This is the skill you run first when targeting an API before you start poking at auth or business logic. It walks you through mining JavaScript bundles for endpoint patterns, checking standard doc paths like /swagger.json and /openapi.json, and hunting for version drift across /api/v1/, /mobile/, and legacy routes. The checklist focuses on extracting the stuff that matters: optional fields, deprecated endpoints that still work, and schema hints that expose hidden parameters. It's lean recon with clear routing at the end, sending you to BOLA testing if you find object IDs everywhere or JWT abuse if you spot role claims. Good first step that keeps you from missing surface area.

Install to Claude Code

npx -y skills add yaklang/hack-skills --skill api-recon-and-docs --agent claude-code

Installs into .claude/skills of the current project.

CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
inference shell
inference shell
create and run specialised agents in minutes
build now →
MCP-ready Email SendingMCP-ready Email Sending
MCP-ready Email Sending
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
Capacitor - Shared memory for your team’s coding agents.
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
CodeScene MCP Server
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
Give your AI the whole web as clean markdown
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
inference shell
inference shell
create and run specialised agents in minutes
build now →
MCP-ready Email SendingMCP-ready Email Sending
MCP-ready Email Sending
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
Capacitor - Shared memory for your team’s coding agents.
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
CodeScene MCP Server
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
Give your AI the whole web as clean markdown
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
Files
SKILL.md

Select a file.

Featured
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
inference shell
inference shell
create and run specialised agents in minutes
build now →
MCP-ready Email SendingMCP-ready Email Sending
MCP-ready Email Sending
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
Capacitor - Shared memory for your team’s coding agents.
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
CodeScene MCP Server
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
Give your AI the whole web as clean markdown
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
Categories
Backend & APIsTesting & QAGit & Pull RequestsDocumentationCode Review & Quality
First SeenMay 16, 2026
View on GitHub

More from yaklang/hack-skills

All 102 skills →
  • Api Auth And Jwt Abuse2.7k
  • Authbypass Authentication Flaws2.7k
  • Jwt Oauth Token Attacks2.7k
  • Websocket Security2.6k
  • Idor Broken Object Authorization2.6k
  • 401 403 Bypass Techniques2.6k
  • Waf Bypass Techniques2.6k
  • Auth Sec2.6k
  • Injection Checking2.6k
  • Kubernetes Pentesting2.6k
  • Api Authorization And Bola2.6k
  • Recon For Sec2.6k
  • Heap Exploitation2.6k
  • Traffic Analysis Pcap2.6k
  • Csrf Cross Site Request Forgery2.6k
  • Oauth Oidc Misconfiguration2.6k
  • Cors Cross Origin Misconfiguration2.6k
  • Business Logic Vuln2.6k
  • Ios Pentesting Tricks2.6k
  • Llm Prompt Injection2.6k
  • Binary Protection Bypass2.6k
  • Path Traversal Lfi2.6k
  • Anti Debugging Techniques2.6k
  • Vm And Bytecode Reverse2.6k

Recommended

More Backend & APIs →
yaklang avatar
authbypass-authentication-flaws

yaklang/hack-skills

Authentication bypass testing playbook. Use when assessing login flows, password reset logic, account recovery, MFA bypass, token predictability, brute-force resistance, and session boundary flaws.
2.7k
1.6k
yaklang avatar
websocket-security

yaklang/hack-skills

WebSocket handshake, CSWSH, tooling (wsrepl, ws-harness, Burp), and common flaws. Use when apps use real-time channels, chat, notifications, or WS-backed APIs.
2.6k
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yaklang avatar
api-authorization-and-bola

yaklang/hack-skills

API authorization and BOLA testing playbook. Use when APIs expose object identifiers, nested resources, hidden writable fields, or weak function-level authorization.
2.6k
1.6k
yaklang avatar
graphql-and-hidden-parameters

yaklang/hack-skills

GraphQL and hidden parameter testing playbook. Use when exploring introspection, batching, undocumented fields, hidden parameters, schema abuse, and GraphQL authorization gaps.
2.6k
1.6k
yaklang avatar
ssti-server-side-template-injection

yaklang/hack-skills

SSTI playbook. Use when template expressions, server-side rendering, preview features, or templating engines may evaluate attacker-controlled content.
2.6k
1.6k
affaan-m avatar
claude-api

affaan-m/everything-claude-code

claude api
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