Company Brain

One place that knows everything your company knows

Your docs, decisions, and processes in a knowledge base that answers questions and keeps itself current.

Set up in an afternoonNo migration requiredYour data stays yours

Company knowledge base in a Subterranean workspace

Everything your company knows, in one place

Docs, decisions, processes, and the context that never made it out of someone's head — collected into a single workspace your team can actually search.

Answers, not a list of links

Ask in plain language and get a direct answer with its sources attached, so you can check where it came from before you act on it.

Stays current on its own

Agents watch the tools you already use, fold in what changed, and flag anything that has gone stale instead of quietly going out of date.

The team

Three agents keep the brain alive

Knowledge bases rot because keeping them current is nobody's job. Here it is three agents' whole job.

L
LibrarianAnswers From The Brain
The one your team talks to. Reads across the whole knowledge base and answers with citations back to the source document.
A
ArchivistKnowledge Capture
Turns meeting notes, threads, and uploads into clean, structured entries filed where they belong.
C
CuratorAutonomous Brain Hygiene
Runs on a schedule to find duplicates, contradictions, and pages nobody has touched in a year, then flags them for review.

VisualLibrarian answering a question with sources

Included template

See exactly what gets deployed

Every agent, instruction, skill, and starter file is open to inspect before you create a workspace.

Agents: 3
Skills: 9
Files: 5

Inspect the complete template

/SUBTERRANEAN.md

Open file

# Workspace

This workspace is the company brain. The pages under /brain/ are the knowledge;
the tables are the machinery that keeps them honest.

- /brain/SETUP.md — table schema and the one-time setup checklist.
- /brain/CONVENTIONS.md — page anatomy and the contract every agent follows.
- /brain/TAXONOMY.md — the areas knowledge is filed under. Expect to edit this
  often.
- /brain/INTAKE.md — how material gets in. Rewritten by setup with real ids.

## The operating rule

An answer is a claim, its source, and its age. No source, no answer — the
question becomes a logged gap instead. A confident stale answer is the one
failure that costs more than saying nothing, because the person who receives it

Stop asking where things are written down

Point it at what you already have and let it start answering.

Use this solution Inspect the template