Enola indexes multi-repo codebases into a knowledge graph for AI agents

Enola is an open-source architecture engine that indexes a codebase — even one split across multiple repositories like an iOS app, Android app, backend, and frontend — into a single persistent knowledge graph. It runs as an MCP server, letting it directly answer questions like "what calls this function," "what breaks if I change this interface," and "is this code actually used." The project grew out of two developers' experience building a golf app whose codebase spread across several repos, a common pain point once a project splits into microservices.

The core idea is that architecture doesn't change between sessions, yet AI coding agents currently re-derive it from scratch every time using grep and guesswork. Pre-building the architecture as a graph means agents don't have to rediscover it repeatedly, and multiple repositories can be merged into one combined graph.