The Halloween stage: an isometric town of purple houses with lit windows, jack-o’-lanterns and bats at night
Launch · version 1.8
Agent Theatre: Halloween
Watch your coding agent work, as a film.
Free, open source (MIT) · works with Claude Code · by Ship at Midnight
The problem
An agent session is a wall of logs
Reads, edits and test runs scroll past faster than anyone can follow. Did it run the tests after its last change, or just say it was done?
0:01 Read src/auth/session.ts
0:05 Edit src/api/login.ts +14 −3
0:10 Run tests · npm
0:15 2 failed · vitest
0:16 Read tests/login.spec.ts
0:20 Edit src/api/login.ts +1 −1
0:25 Run tests · npm
0:29 24 passed · vitest
0:32 Says it’s done
What it is
Your repo becomes a little town
Folders
become districts
Files
become buildings
Tests
become lighthouses (“beacons”)
The agent
walks, hammers, runs tests, chases gremlins
The Halloween stage seen from above
If the agent says it’s done but no test has passed since its last edit, a gremlin hides behind it. Runs locally; nothing leaves your machine.
The Halloween stage: purple houses with lit windows, jack-o’-lanterns and bats
New in 1.8
The Halloween stage
  • Purple houses with lit windows
  • Flickering jack-o’-lanterns
  • Bats circling overhead
  • A ghost-white gremlin when a test fails
Suggested first until 2 November, then always under “All sets”.
New in 1.8
Jump scares
About once a minute: a ghost swoops at the screen, lightning cracks, a giant jack-o’-lantern rises, or a burst of bats flies out.
Scares on
One tap turns them off, and it remembers your choice.
They never play with reduced motion on, or while a replay is paused.
A ghost swooping at the screen over the Halloween stage
Pip, the lead character: a small orange creature with a glowing antenna
New in 1.8
A livelier lead
While the agent thinks, Pip strolls round its building, looks it over, then stretches, spins and dances.
Also fixed: the set picker in VS Code now scrolls properly inside the panel.
Twenty-one stages · a cast of twelve
After the run
Review it, file by file
Press Changes for a map of every file the agent touched: grouped by folder, sized by lines changed, coloured new, edited, deleted or read.
Click a file to see its diff, then copy the summary as Markdown or post it on the pull request.
Less scrolling through logs, so staying in the loop is less of a chore.
The Changes view: a map of files the agent touched, grouped by folder and sized by lines changed
Try it
Three ways in
npx
npx agent-theatre
Run it in your repo, then use Claude Code in another terminal.
VS Code
“Agent Theatre”
The same stage inside the editor, from the Marketplace or Open VSX.
Homebrew
brew install shreyassaw5394/tap/ agent-theatre
From the tap, if Homebrew is how you install tools.
Play the Halloween episode in your browser
agenttheatre.dev
npx agent-theatre
Free and open source (MIT) · runs locally · works with Claude Code MCP server for Cursor, Windsurf, Codex, Gemini CLI and Claude Desktop
QR code linking to instagram.com/shipatmidnight
Scan to follow on Instagram
Made by
Ship at Midnight
Progress every day. A release every Sunday at midnight.
Instagram
@shipatmidnight
GitHub
github.com/shreyassaw5394
Discord
discord.gg/s8wj7tBAM