Api And Interface Design

---
name: Api And Interface Design
description: Guides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or GraphQL endpoints, defining type contracts between modules, or establishing boundaries between frontend and backend.
---

# Api And Interface Design

Part of the **Production Engineering Skills** pack by Addy Osmani (`addyosmani/agent-skills`).

Guides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or GraphQL endpoints, defining type contracts between modules, or establishing boundaries between frontend and backend.

This catalog entry summarizes the skill for discovery. Get the full skill — including any bundled scripts and resources — from the source:

Full skill & source: https://github.com/addyosmani/agent-skills/tree/main/skills/api-and-interface-design