I built a local memory layer for coding agents so they stop re-learning my machine every session

Been experimenting with coding agents locally and kept hitting the same issue: they’re smart enough to code, but they repeatedly waste effort rediscovering repo paths, startup commands, preferences, folder structure, etc. So I built Substrate - a local-first memory layer that s reusable facts (“beliefs”) and exposes them over MCP. Examples: main frontend repo lives here use pnpm not npm ignore this generated folder start local stack with this command The idea is simple: agents should query persistent local context before blindly searching the filesystem.