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How to talk to a Claude Code agent from your Apple Watch with Chums

Hold the watch screen, say a request, and get your Mac's Claude Code agent to act on it.

Credentials. The hub's watch API is published to the internet through Tailscale Funnel and protected only by a watch token, so you should read SECURITY.md before you enable it.

Who it is forA developer who has Claude Code running on a Mac and wants to give it instructions away from the desk, for example while walking or away from the keyboard.

The problemClaude Code only takes input at the Mac, so any follow-up request means going back to the desk.

The outcomeYou can speak a request on the watch, the Mac transcribes it and sends it to the agent, and the watch shows the character's state and tool calls as the agent works.

What you need first

  • A Mac with Apple silicon on macOS 15.6 or later, with Xcode 26 and XcodeGen
  • An Apple Watch on watchOS 26 paired with an iPhone on iOS 26, and a USB cable for the iPhone the first time
  • Node.js 20.11 or later
  • Claude Code and/or Codex CLI, signed in
  • WhisperKit CLI and ffmpeg
  • A free Tailscale account for Funnel
  • An Apple ID in Xcode (a free Personal Team works)

Steps

  1. Clone the repo and enter it: git clone https://github.com/lcoutodemos/chums.git && cd chums
  2. Check requirements and install packages, the Whisper model and the agents' voices: bin/chums-setup
  3. Start the hub in its own terminal: bin/chums-hub
  4. Publish the watch API with Tailscale Funnel (sign in the first time): bin/chums-tunnel
  5. Build and install the watch and iPhone apps: bin/chums-install
  6. Run each character's Claude Code agent in the background: bin/chums-agents install

Prompt for your agent

Clone https://github.com/lcoutodemos/chums into <target-folder> and follow its AGENTS.md to set up Chums on this Mac. Expected output: the hub running and a Claude Code agent started for the watch. Verify by running bin/chums-doctor from the repo and confirming it reports no failures.

Caveat. The first setup takes 20 to 30 minutes plus up to half an hour of waiting for Xcode and a new Funnel address to reach public DNS.

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