siGit Code — On-device AI Coding Agent

Your code never has to leave your machine. siGit Code is a local-first AI coding agent for VS Code. It runs the on-device sigit agent, a quantized (GGUF) model that executes entirely on your hardware and works offline, and brings it into the editor as a chat-driven pair programmer.

There are no cloud round-trips and no API keys for the default agent. The model lives on your device, and so does your code.

siGit Code also speaks the open Agent Client Protocol (ACP), so it can drive other ACP-compatible agents over stdio. The on-device agent is still the point.

Why local-first

Your prompts and file contents stay on your machine.
It works offline, including on a plane or behind an air gap.
There is no per-token billing, so you can run it as much as your hardware allows.
You choose the model and the weights, and they do not change underneath you.

ACP and multi-agent support are there for when you need a hosted agent. They are not the headline.

Requirements

VS Code ^1.90.0
The sigit binary on your PATH. Install it from code.sigit.si.

siGit Code only spawns the sigit binary over ACP, so it has no build-time dependency on the agent. Install the agent separately.

Getting started

Install the sigit agent (see code.sigit.si) and confirm sigit runs from your terminal.
Install this extension.
Click the siGit Code icon in the Activity Bar to open the chat view.
Type a prompt and press Enter. The extension spawns the agent, opens a session in your workspace folder, and streams the response.

Commands (Command Palette):

Command	Description
`siGit: Open Chat`	Reveal the chat view.
`siGit: New Session`	Start a fresh session with the active agent.
`siGit: Select Agent`	Pick an agent from the registry.
`siGit: Restart Agent`	Restart the active agent process.

Configuration

Setting	Type	Default	Description
`sigit.agent.default`	string	`"sigit"`	Key of the agent used by default, looked up in `sigit.agents`.
`sigit.agents`	object	on-device `sigit`	Registry of ACP agents (`{ name, command, args, env }`).
`sigit.permission.mode`	enum	`"prompt"`	`prompt`, `allow`, or `deny` for agent-requested actions.

Add another ACP agent

The default registry contains only the on-device agent. To add another ACP-compatible agent, extend sigit.agents in your settings.json:

{
  "sigit.agents": {
    "sigit": {
      "name": "siGit (on-device)",
      "command": "sigit",
      "args": [],
      "env": {}
    },
    "claude-code": {
      "name": "Claude Code (ACP)",
      "command": "claude-code-acp",
      "args": [],
      "env": {}
    },
    "gemini": {
      "name": "Gemini CLI (ACP)",
      "command": "gemini",
      "args": ["--experimental-acp"],
      "env": {}
    }
  },
  "sigit.agent.default": "sigit"
}

Then run siGit: Select Agent to switch between them.

Development

This project uses pnpm.

pnpm install
pnpm run watch       # esbuild in watch mode
# Press F5 to launch the Extension Development Host

Other scripts:

pnpm run compile     # tsc --noEmit type check
pnpm run lint        # eslint
pnpm run build       # production bundle (esbuild)
pnpm run test:smoke  # ACP round-trip against a mock agent
pnpm run package     # vsce package (.vsix)

#siGit Code — On-device AI Coding Agent

#Why local-first

#Requirements

#Getting started

#Configuration

#Add another ACP agent

#Development

#License