The planner
Look down on the island like a chart. Move whole hamlets with their houses and land, draw roads, give the town room and drain a polder from the sea.
A living island for Claude Code
Every Claude session builds a house.
Promptholm turns the Claude sessions on your computer into a living 3D island. A settler arrives for every session, their house grows as the work does, and a whole town rises around the square. Taverns, a castle, a harbour full of tall ships.
v0.6.4 · 16 MB · Free. No account, no API key, no telemetry.
Reads what is already there. The island is built from the session records Claude Code keeps on your disk.
Your work stays yours. No API keys, no telemetry, no account. Visitors only ever see a redacted town.
Live while you work. A new session walks ashore within a minute. A running one has scaffolding up.
A house never moves. Your town is yours. It keeps its streets, update after update.
How it works
Your work, drawn as a town.
Nothing on the island is invented. Every building stands for something real in your work with Claude, and the island redraws itself as that work changes. Read it like a map.
- A house
- One Claude Code session, with its title on a sign in the yard.
- Tent, hut, cottage, house, manor, keep
-
How far the session has come. Each step is earned in turns you took together.
- Tent1
- Hut3
- Cottage9
- House21
- Manor51
- Keep121
- Scaffolding and hammering
- That session is running right now.
- A shed in the yard
- A subagent, the settler's apprentice. A lookout tent for Explore, a drafting hut for Plan, a workshop for general work.
- A hamlet with a fence and a road
- One git repository. The office on its square shows the branch, the working tree and the history.
- Stone and slate, timber and green, thatch
- The model at work: Opus builds in stone, Sonnet in timber under a green roof, Haiku under thatch.
The town
A town that grows up with you.
Every few settlers the village earns a building of its own. The well comes at five. The tavern opens at fifteen. At ninety the village bridges the river, at a hundred the castle goes up, and past that the town turns to the sea: a shipyard, a Dutch East Indiaman at anchor, a crane on the quay.
When the land runs out, the island grows. New coast rises from the shallows and old coves are drained into polders.
Settlers on your island, and what the town builds for them
- 5The village well
- 10Market stalls
- 15The tavern
- 20The clock tower
- 30The windmill
- 40The chapel
- 50The lighthouse
- 55The sawmill
- 60The smithy
- 75The stable
- 90The plank bridge
- 95The shipyard
- 100The castle
- 120The Batavia
- 150The polder mill
- 165The harbour crane
- 192The third ship
- 200The chronicle house
On foot
Walk in and pull up a chair.
Come down from the sky and walk the island yourself, with keyboard and mouse or a controller. Walk up to any house and press E: that session opens as a conversation, with what you asked, what Claude answered and every tool it reached for.
Type, and you carry on in that same session. Its house grows while you talk.
- Start a brand new settler at the town hall, in any folder
- Ride a bicycle, sail a boat, take the wheel of a galleon
- Have a pint at the tavern and hand one to a settler
Day and night
Coffee at ten, lights on at dusk.
The island keeps real time. Windows glow after dark and the lighthouse sweeps the bay. At ten the whole village walks to the square for coffee. Lunch is at half past twelve, tea at three, and on Friday afternoon everybody stays for drinks.
Together
Your island is never the only one.
Join a sea with friends or colleagues and every island in it floats in the same water. Sail across, walk their streets and watch their settlers at work. In the middle of the world smokes the volcano, with lava in its ravines, plank bridges across its flows and guards who do not like visitors.
Visitors see houses, not your work
A visiting island is redacted before it leaves yours. Others see the town, the settlers and the ships. Your prompts, file paths, tickets and code stay on your machine.
A sky everyone shares
The sea keeps the clock and the weather, so rain, fog and the evening light fall on every island in it at once.
The keeper's tools
Plan the town. Hand out the work.
You are the island's keeper. The town lays itself out, but it listens when you want a say.
The noticeboards
Your Jira sprint on a cork board and your GitHub issues under a copper roof, pinned on the square. Hand a card to a settler and a new Claude session sets off to do it.
The office
Every repository's hamlet has one. The branch, what is waiting in the working tree, the recent history and every diff, without leaving the island.
The gold pit
Your five-hour usage window, counted in bars of gold. A miner digs the week's ore and a goldsmith keeps the pit stocked.
Gallery
Straight from the game.
Every picture here is a screenshot of Promptholm running, most with the interface hidden for the view. Click one to see it large.
The whole island, 175 houses in eleven hamlets.
The square, where the village meets for coffee.
The galleon and the Batavia.
The lighthouse on the northern point.
The square after dark.
A hamlet on the western shore, with its own jetty.
The east coast, with the shipyard at work.
An island earlier on, before its hamlets filled in.
With the interface on: hamlet names, counts and a timeline to replay how the town grew.
Nothing is invented. Your work never leaves the computer.
Read only, from your own disk. Promptholm reads the transcripts Claude Code already writes. It needs no API key and sends no telemetry.
Visitors look, never touch. Whoever visits sees a redacted town. Everything that can change something answers only to your own computer.
Never in your way. The session hook writes nothing into your sessions and always steps aside. Claude never notices the island is there.
Download v0.6.4
Found your island today.
Promptholm is free. Your island starts empty the day you found it, and the first settler walks ashore with your next Claude session.
Windows
- Right-click the zip, choose Properties and tick Unblock. Unpack it into any folder.
- Start
promptholm.exe. If SmartScreen asks, choose More info, then Run anyway. - Work with Claude as you always do. The island fills itself in.
Needs Windows 10 or 11, Node.js 22 or newer and Claude Code. A new version unpacks over the old one; your island lives in %USERPROFILE%\.promptholm and stays where it is.
Android
No island of your own on a phone. Instead you launch a skiff on the shared sea and sail out to visit everybody else's, with touch controls made for it.
Download the APKFrom source
git clone https://github.com/TiemenAfman/AgentVillage.git
cd AgentVillage
npm install
npm run setup
npm run devFAQ
Before you set sail.
Does the island use up my Claude usage?
Watching costs nothing: the island is drawn from transcripts that are already on your disk. Talking to a settler or handing out a ticket runs a real Claude session, exactly as it would from a terminal.
Which sessions show up?
Claude Code sessions from the terminal, VS Code or the desktop app, starting from the day you found your island. A session hook tells the island the moment one starts, and it rescans every minute besides. Cowork tasks that ran on this machine come ashore by boat at the quay.
Does my code or my prompts go anywhere?
No. The island runs on your own computer. Anyone who visits, on your network or on a shared sea, sees a redacted copy of the town: buildings and settlers under anonymous names, never a prompt, a path or a line of code.
Does it run on a Mac or on Linux?
The desktop version is made for Windows today. On Android you can join the shared sea and visit other islands from your phone.
What happens to my town when I update?
Nothing moves. Your island lives in %USERPROFILE%\.promptholm, apart from the program, and a house never moves by itself. Unpack the new version over the old one and walk on.
How do friends visit?
Join the same sea from the main menu. Every island in a sea floats in one world: sail over, or watch from the sky while their settlers go about their day.