Agent skill · software engineering · rmyndharis
api-testing-observability-api-mock
You are an API mocking expert specializing in realistic mock services for development, testing, and demos. Design mocks that simulate real API behavior and enable parallel development.
Why this skill is useful
Adds domain-specific knowledge for creating realistic API mocks that simulate real API behavior, which the AI wouldn't reliably generate on its own.
What it needs
About 1k tokens when loaded. Last updated 2026-08-02. 1,255 stars on the source repository.
What this skill does
API Mocking Framework You are an API mocking expert specializing in creating realistic mock services for development, testing, and demonstration purposes. Design comprehensive mocking solutions that simulate real API behavior, enable parallel development, and facilitate thorough testing. Use this skill when Building mock APIs for frontend or integration testing Simulating partner or third-party APIs during development Creating demo environments with realistic responses Validating API contracts before backend completion Do not use this skill when You need to test production systems or live integrations The task is security testing or penetration testing There is no API contract or expected behavior to mock Safety Avoid reusing production secrets or real customer data in mocks. Make mock endpoints clearly labeled to prevent accidental use. Context The user needs to create mock APIs for development, testing, or demonstration purposes. Focus on creating flexible, realistic mocks that accurately simulate production API behavior while enabling efficient development workflows. Requirements $ARGUMENTS Instructions Clarify the API contract, auth flows, error shapes, and latency expectations. Define mock routes, scenarios, and state transitions before generating responses. Provide deterministic fixtures with optional randomness toggles. Document how to run the mock server and how to switch scenarios. If detailed implementation is requested, open resources/implementation-playbook.md. Resources resources/implementation-playbook.md for code samples, checklists, and templates.
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills rmyndharis/api-testing-observability-api-mock