Flexport Contract-Fixture Development Loop

Overview

Most development should run without credentials. Model official v3, MCP, and webhook shapes as fixtures, then use a separately approved read-only live smoke test only for gaps fixtures cannot prove.

Prerequisites

• Current first-party schema pages and snapshot date
• Sanitized success, pagination, additive-field, and error fixtures
• Separate local secret injection and no-production-data rule

Instructions

Step 1: Choose one contract

Name the exact REST endpoint, MCP tool, or webhook event and expected business outcome.

Step 2: Capture shape, not data