Sail

A coding agent for your terminal. It reads the project, edits files and runs commands in a sandbox.

Terminal
curl -fsSL https://safeailabs.ai/install.sh | sh

Version 0.6.013 Oct 2026

Needs macOS on Apple silicon. Then run sail login to sign in. Release notes

Plans

Tokens are unlimited on every plan. Plans differ in how many requests run at once.

Plans are coming soon.

Past a plan's requests at once, a request is refused with a retry time and Sail sends it again.

A plan covers the requests Sail makes, and its key works only from Sail. Other API keys in the workspace are charged per token from credits.

What it does

Commands run in a sandbox
On macOS every command runs under Seatbelt. It can write only inside the project and a temporary directory of its own, never to git's config or hooks. SSH, git, cloud and package registry credentials in your home directory are unreadable; a credential tool such as gh or aws reads its own only when a command is that tool alone. The environment is scrubbed and the network stays open. Sail can read secret files in your project, such as .env files and private keys; prompts stay in memory for the session and are never written to disk. To hide them, set "hide_secrets": true in ~/.config/sail/config.json.
Signs in through the browser
sail login opens safeailabs.ai/device. The API key it creates is listed on Keys like any other and is kept in the macOS Keychain or the Linux Secret Service, or on a machine with neither, in a file only you can read that commands Sail runs cannot open.
Uses the MCP servers you have
It reads the project's .mcp.json and your ~/.config/sail/mcp.json. A server the project names asks before it starts. MCP servers run outside the sandbox.
Indexes the project
Definitions and uses in Rust, TypeScript, JavaScript, Python, Go, C, C++, GDScript and shell, kept in the project's git directory.
Updates itself
A new release is checked against its signature, downloads in the background and takes effect the next time Sail starts. sail update updates now, and SAIL_NO_UPDATE=1 turns automatic updates off.

Requirements

Setup, updates and troubleshooting are in the docs.

  • macOS on Apple silicon (Intel Macs are not supported), or Linux on x86_64 or arm64.
  • A Sail plan on the workspace you sign in to.
  • A Windows build is coming soon.