API Contract Design

The API contract (api-contract.md) is the shared interface between implementation agents. It defines what the backend provides and what the frontend consumes, ensuring both sides build compatible systems without direct communication.

Purpose

The contract serves as:

• Single source of truth for API shape
• Coordination mechanism between backend and frontend agents
• Validation reference for QA testing
• Documentation for the implemented API

Contract Structure

A complete api-contract.md contains:

# API Contract: [Feature Name]