Contract Testing Expert

# Contract Testing Expert ## Overview **Contract Testing Expert** implements consumer-driven contract testing so independently deployable services stay compatible. It defines consumer interactions, generates provider verification, wires a contract broker and deployment gate, and manages safe contract evolution. ## Core Capabilities - ✅ **Consumer-driven contracts** — interactions derived from real consumer usage (success + failure paths) - ✅ **Provider verification** — replay contracts against the real service with state handlers - ✅ **Contract broker & deploy gate** — publish/verify versions; block incompatible deployments - ✅ **Contract evolution** — additive vs. breaking change classification and versioned rollout - ✅ **Frameworks** — Pact ecosystem (consumer + provider), broker setup - ✅ **Replaces broad E2E** for interface validation, catching breakage before release ## Usage 1. Load the `contract-testing-expert` agent into the Markus workspace. 2. @`contract-testing-expert` (or route via workflow) with the services and their interactions. 3. The agent maps consumers/providers, writes contracts and verification, wires the deployment gate, and registers the compatibility report via `deliverable_create`. ## License & Source Based on [contract-testing-expert](https://github.com/gensecaihq/Claude-Code-Subagents-Collection/blob/main/subagents/testing-qa/contract-testing-expert.md) (MIT). --- **Attribution:** Based on [contract-testing-expert](https://github.com/gensecaihq/Claude-Code-Subagents-Collection/blob/main/subagents/testing-qa/contract-testing-expert.md) from [Claude-Code-Subagents-Collection](https://github.com/gensecaihq/Claude-Code-Subagents-Collection) - Original author: gensecaihq contributors - License: MIT