siGit MCP Server

siGit Code

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siGit Code is the local agent runtime for siGit Factory. It runs on your machine by default, with optional cloud inference and remote automation when you choose them.

Its home is code.sigit.si. You can run it yourself, as below, or use the hosted version (siGit Code Cloud) there if you would rather not run a model locally. sigit.si is Git hosting built for AI workflows.

It works in any codebase. In smbCloud repos it is more useful out of the box because it already understands the Rust workspace layout, deploy flows, auth boundaries, and GresIQ.

You can use it in two ways:

• ACP mode: Zed or another ACP-compatible editor starts it over stdio with the --acp argument
• Terminal mode: run sigit for the interactive chat UI

Every ACP client must pass --acp. It takes no other arguments, and it is what tells the binary to speak the Agent Client Protocol instead of opening the terminal UI.

Platform	ACP mode	Terminal mode
macOS	✓	✓
Linux	✓	✓
Windows	✓	not yet

Install

cargo install sigit

Method	Command
Homebrew	brew tap getsigit/tap && brew trust --tap getsigit/tap && brew install sigit
pip	pip install sigit-code
uv	uvx --from sigit-code sigit
npm	npm install -g @getsigit/sigit
NuGet	dotnet tool install --global SiGit.Code
winget	winget install smbCloud.siGitCode
Scoop	scoop bucket add getsigit https://github.com/getsigit/scoop-bucket && scoop install sigit
AUR	yay -S sigit-bin
Debian/Ubuntu	download the .deb from releases, then sudo dpkg -i sigit_*.deb
Fedora/RHEL	download the .rpm from releases, then sudo rpm -i sigit-*.rpm

First run

The first launch downloads a GGUF model from Hugging Face. Expect roughly 1 to 2 GB, depending on the model. After that, loads come from disk and are much faster.

On macOS, siGit Code shares its model cache with the desktop app through an App Group container. If the desktop app already downloaded the model, the CLI reuses it.

Zed setup

Add this to ~/.config/zed/settings.json:

{
  "agent_servers": {
    "siGit Code": {
      "type": "custom",
      "command": "/absolute/path/to/sigit",
      "args": ["--acp"]
    }
  }
}

Use the full absolute path. ~ does not expand here.

Xcode custom agent

In Xcode, open Settings > Intelligence > Agents, add a custom agent, and set:

• Executable: the absolute path to sigit
• Arguments: --acp

In Xcode the --acp mode also loads the selected on-device model on the first prompt, so you do not need to send /load from the Xcode chat.

To let siGit use Xcode's build, test, and project tools, enable Allow external agents to use Xcode tools in Xcode's Intelligence settings, keep the project open, and add this to ~/.config/sigit/mcp.toml:

[[server]]
name = "xcode"
command = "xcrun"
args = ["mcpbridge"]

VS Code

With siGit Code Extension

Install from the Visual Studio Code Marketplace.

{
  "sigit.agents": {
    "sigit": {
      "name": "siGit (on-device)",
      "command": "sigit",
      "args": ["--acp"],
      "env": {}
    },
  },
  "sigit.agent.default": "sigit"
}

With ACP Client

Install ACP Client, then add:

{
  "acp.agents": {
    "siGit Code": {
      "command": "sigit",
      "args": ["--acp"],
      "env": {}
    }
  }
}

Terminal mode

Run sigit in a terminal and you get the same model and system prompt as the editor integration, just in a full-screen chat UI.

Terminal mode currently needs Unix terminal behavior, so it works on macOS and Linux only.

Headless and CI mode

Use sigit run to execute the same agent from scripts, CI, or another siGit Factory client:

sigit run "Review this repository and run the focused tests" --cwd .

Every run receives a durable session ID. The ID is printed to stderr in text mode and included in every event in JSONL mode. Resume the same conversation from a later command—or import it in an ACP client—by passing that ID:

sigit run "Continue with the next issue" --resume <session-id>

For automation, JSONL output provides session, assistant-delta, tool-call, tool-result, result, and error events on stdout. Logs remain on stderr.

sigit run "Run the checks" --output jsonl --allow-tool run_command

Mutating tools still follow siGit's permission policy. Because a headless run cannot answer an interactive permission prompt, approve only the tools the run needs with repeatable --allow-tool flags. The legacy sigit -p "<prompt>" form remains supported. See the headless execution reference for the event contract and exit codes.

Platform support

Platform	Architecture
macOS	arm64, x64
Linux (glibc)	arm64, x64
Windows	arm64, x64

License

Apache 2.0

Distribution

Splitfire AB.

Copyright

© 2026 PT Sigit Mitra Bangun (siGit Code & Deploy).