I taught Hermes Agent to predict which API changes will break my system

This is a submission for the Hermes Agent Challenge: Build With Hermes Agent

What I Built

Drift Detective is an MCP server that turns Hermes Agent into an API contract mutation tracker. It probes your microservices on a cron schedule, stores response shapes (fields, types, nesting depth), and classifies changes when they happen: additive, breaking, or cosmetic.

The interesting part: it learns. After you mark a few changes as "safe" or "breaking," it starts predicting. Week one it's noisy. Week three it knows that your payments service adding nullable fields is always fine, but your auth service changing any field name will break downstream consumers.

Demo