Sillage — Development skill for Claude Code

**Work with your coding agents from your computer or phone.**

Sillage runs Claude Code, Codex, OpenCode, Grok Build and Google Antigravity in one workspace, using your existing agent accounts. You can review their changes beside the conversation.

Use the desktop app on your own computer, or host Sillage Server to reach your agents from other devices. Sillage is free and open source. You'll need the accounts, subscriptions or API credentials required by the agents you use.

[**Get the desktop app**](#install-the-desktop-app) · [**Host your own server**](#install-the-server) · [**Watch the 54-second demo**](https://marlburrow.github.io/sillage/#film)

[](https://github.com/MarlBurroW/sillage/releases/latest) [](https://github.com/MarlBurroW/sillage/actions/workflows/ci.yml) [](LICENSE)

Why I built Sillage

I wanted one place, on a server I own, where I could pick up a project from my phone. I could keep working wherever I happened to be, without carrying a laptop or keeping track of a dozen terminals.

I also wanted to keep the agents I already used. Sillage runs their native tools and permission flows, and gives them a shared workspace: projects, a board, instructions and memory. A session can look up an earlier decision and leave context for the next agent, even when I switch CLIs.

Claude Code and Codex wrote most of Sillage, much of it from inside Sillage itself, often from a phone. The tool and the way I work on it grew together.