Files are where
the work happens.

Something odd happened when AI agents started doing real work. They reached for files.

Claude Code, Codex and Cursor don’t ask for a dashboard. They list a directory, open a markdown file, grep for a function, write a plan to disk and pick it up again later. The most capable software we have works the way a careful engineer does: in files.

Teams followed. Plans became markdown. Decisions became notes next to the code. Context that used to live in someone’s head, or in a tab nobody could find, became a file an agent could read.

But the files are stuck on one machine.

Your agent’s work sits on your laptop. Your teammate’s agent has its own copy, a little older. A cloud job starts from a snapshot that was stale before it booted. Someone pastes context into a chat window, and the next agent starts from nothing.

Cloud drives were designed for people who open a file now and then and sync it later. Agents are different. There can be hundreds of them, they work at the same time, and they don’t wait politely for a sync to finish.

So we are building a multiplayer file system.

Baseseat is one folder that your team and every agent work in at the same time. It mounts like any folder on macOS and Linux, and agents reach it through MCP, the CLI, the Python SDK or the API. Large files stream by the bytes a program actually reads. A write made against an old version is refused, so nobody silently overwrites anybody.

It is a hot workspace, not an archive. In our own testing, files open from anywhere in the world in about 50 ms on average, and the folder stays live while many agents read and write at once.

A small team should be able to work like a big one.

We want one person with a few agents to get through work that used to need a department. We want a team of ten to hand work between people and agents without losing the thread. We want the context a company builds up to be something every agent can open, not something that leaves when a laptop closes.

Getting there takes serious engineering on our side. The product should make that work disappear from yours.

You bring the work.
We’ll make it multiplayer.