Test your agent’s actions.
Free, on your machine.

The Mac app

1. Drag Geometer from the disk image to Applications and open it.
2. This alpha is not signed by Apple yet, so macOS refuses it the first time. In System Settings, Privacy & Security, click Open Anyway. Once per version.

Or in Terminal:

xattr -dr com.apple.quarantine /Applications/Geometer.app

The terminal, macOS or Linux

curl -fsSL https://geometer.dev/install.sh | sh

It picks the build for your computer, checks its SHA-256 and installs geo for your user, with no administrator rights. Read the script. Then geo open opens the workspace in your browser.

Linux CI

docker run --rm --network host \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v "$PWD:$PWD" -w "$PWD" \
  ghcr.io/geometerlabs/geo:0.1.0-alpha.2 ci

Runs your kept checks. The exit code says whether one broke.

Use it from your coding assistant

Say “check my agent with Geometer” in Claude Code or Cursor. You get a three-line answer and a link to the board, and you confirm anything that changes your project. It runs on your machine, with no account. How to use it

Claude Code (geo mcp install --client claude-code prints this):

claude mcp add --scope user geometer -- /path/to/geo mcp serve

Cursor (geo mcp install --client cursor prints this), in ~/.cursor/mcp.json:

{
  "mcpServers": {
    "geometer": { "command": "/path/to/geo", "args": ["mcp", "serve"] }
  }
}