MCPInstall

api-recon-and-docs

API reconnaissance and documentation review playbook. Use when discovering endpoints, schemas, versions, OpenAPI specs, hidden docs, and surface area for API testing.

Installs
3.8K
Last 24h
+16
Trending rank
#6705
Security
Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/yaklang/hack-skills --skill api-recon-and-docs
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads api-recon-and-docs automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

SKILL: API Recon and Docs — Endpoints, Schemas, and Version Surface

AI LOAD INSTRUCTION: Use this skill first when the target is a REST, mobile, or GraphQL API and you need to enumerate endpoints, documentation, versions, and hidden surface area before exploitation.

1. PRIMARY GOALS

  1. Discover all reachable API entrypoints.
  2. Extract schemas, optional fields, and role differences.
  3. Identify old versions, mobile paths, GraphQL endpoints, and undocumented parameters.

2. RECON CHECKLIST

JavaScript and client mining

curl https://target/app.js | grep -oE '(/api|/rest|/graphql)[^"'\'' ]+' | sort -u

Common documentation and schema paths

/swagger.json
/openapi.json
/api-docs
/docs
/.well-known/
/graphql
/gql

Version and product drift

/api/v1/
/api/v2/
/api/mobile/v1/
/legacy/

3. WHAT TO EXTRACT FROM DOCS

  • optional and undocumented fields
  • admin-only request examples
  • deprecated endpoints that may still be active
  • schema hints like additionalProperties: true
  • parameter names tied to filtering, sorting, IDs, roles, or tenancy

4. NEXT ROUTING

FindingNext Skill
object IDs everywhereapi authorization and bola
JWT, OAuth, role claimsapi auth and jwt abuse
GraphQL or hidden fieldsgraphql and hidden parameters
strong auth boundary but suspicious business flowbusiness logic vulnerabilities

FAQ

What does the api-recon-and-docs skill do?

API reconnaissance and documentation review playbook. Use when discovering endpoints, schemas, versions, OpenAPI specs, hidden docs, and surface area for API testing.

How do I install api-recon-and-docs?

Run npx skills add https://github.com/yaklang/hack-skills --skill api-recon-and-docs in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/api-recon-and-docs/ (personal) or .claude/skills/api-recon-and-docs/ (project).

Which AI agents can use api-recon-and-docs?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is api-recon-and-docs safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains api-recon-and-docs?

It is published by yaklang in yaklang/hack-skills. It has 3,800 recorded installs.

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