Every agent thread, a little astronaut.

How it works

Your threads, laid out as a place you can learn.

Threadnauts reads the session files your harnesses already keep. Every thread becomes someone in the colony, and the map stays put, so after a day you know where everything lives.

A hex zone is a repo

Bigger repos claim more tiles. A zone keeps its ground as it grows and shrinks, and you can pick it up and move it.

A bot and its building are a session

The more the thread has done, the more finished its building looks, on a scale shared across the whole map.

Scaffolding means work

A building wrapped in scaffolding has a thread running there right now, with its bot hammering away.

A bot with no building is a subagent

It's out on an errand for the session that sent it, and shows up only while the errand runs.

Walking out of the ship

A thread that just started. It heads for its repo's zone and gets to work.

Walking back in

A thread you archived. The bot boards the ship, and what it built stays standing.

At a glance

Every bot shows you what it's doing.

A bot is always in exactly one state, and each state has one color, on its eyes, its antenna, and the badge over its head. Only the states that want something from you get a badge, so the one question mark that matters never gets buried.

• Needs youStopped on a question or a permission prompt. It waves until you answer.

• WorkingRunning right now. It hammers at its building while the sparks fly.

• DoneThe turn ended and it's your move. It stops, turns to face you, and waits.

• Waiting on botsIts subagents are out. It stands at its site until they report back.

• ErrorThe last turn failed. It slumps, and its fault light stutters.

• ShippedIts pull request merged. It jumps, with confetti and heart eyes.

• IdleNothing running. It potters around its plot, and after three quiet days it naps.

Click one

The thread is one click away.

Click a bot and a card opens beside it with its title, branch, model, and last activity. The camera follows it while you watch. Everything you can do is a key away, too.

• R Record a video, sound and all
• P Save a screenshot
• H Hide every panel
• O Orbit slowly around the colony
• L Change the time of day

Worlds

80 worlds to build on.

Set up camp on a meadow, a fjord, Mars, or Saturn's rings, with a day and night you can scrub, let run, or set to follow your own clock. 23 of them are free, and Threadnauts Pro opens the rest.

Harnesses

Every harness you run, in one colony.

Every harness that's installed shows up at once, and each bot carries the name of the one it belongs to. A thread opens back in the app it came from, or in a terminal if you'd rather.

• Claude Code
• Codex
• Cursor
• OpenCode
• Antigravity CLI
• Kilo Code
• Hermes

Not yet

• Amp
• Aider
• Goose
• Qwen Code
• Amazon Q Developer CLI

macOS, Windows, and Linux. Needs Node 22.13 or newer.

Get started

One command, and your colony is up.

Threadnauts runs on your own computer and shows itself in your browser. There's nothing to sign up for.

1. Install Node.js

   Threadnauts needs Node.js 22.13 or newer, from nodejs.org.

2. Run Threadnauts

   In a terminal, run:

   npx @threadcrumbs/threadnauts

   It opens in your browser. Run it again any time to bring back the copy that's already running.

3. Meet your crew

   Every thread from your harnesses walks out of the ship. Click a bot to open its thread, and press ? to see every key.

• Keep it installed: npm install -g @threadcrumbs/threadnauts, then run threadnauts.
• Options: --port 5300 picks another port, and --no-open starts it without opening the browser.
• Your map stays put: the colony is saved in your user folder, so updates never lose it.
• Pro: paste your license key into Threadnauts' settings. See pricing.

Threadnauts isn't released yet. This command works from launch day.

Stays local

It watches. It never touches.