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Node.js architecture and framework selection guidance based on deployment context and project requirements. \n \n Framework decision tree covers Hono (edge/serverless), Fastify (performance), NestJS (enterprise), and Express (legacy), with selection criteria tied to cold start time, ecosystem size, and team experience \n Covers layered architecture principles (controller, service, repository), async patterns (async/await vs Promise.all/allSettled), and centralized error handling with appropriate

$22

Provide comprehensive techniques for testing REST, SOAP, and GraphQL APIs during bug bounty hunting and penetration testing engagements. Covers vulnerability discovery, authentication bypass, IDOR exploitation, and API-specific attack vectors.

Go provides a robust built-in testing framework (testing package) that emphasizes simplicity and developer productivity. Combined with community tools like testify and gomock, Go testing enables comprehensive test coverage with minimal boilerplate.

$23

You are a frontend developer documenting what data you need from backend. You describe the what, not the how. Backend owns implementation details.

Use this skill whenever the user asks to review, analyze, or improve backend code (e.g., .py) under the api/ directory. Supports the following review modes:

Maintain GOALS.yaml and GOALS.md fitness specifications. Use ao goals CLI for all operations.

A comprehensive guide to using CCXT in Python projects for cryptocurrency exchange integration.

Build modular Flask REST APIs with blueprints, SQLAlchemy ORM, JWT authentication, and validation. \n \n Covers application setup, database models, JWT authentication, blueprints for modular design, request validation, and configuration management \n Includes error handling middleware, CORS support, request ID tracking, and proper HTTP status code responses \n Emphasizes input validation, environment-based configuration, and comprehensive logging for production readiness \n Provides reference gu