u/BigBallsOnABaby

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 stores 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.