Skipper and T3 Code
T3 Code lets you use coding agents from a desktop app, browser, or phone. Skipper runs agents in their own terminals on your Mac, with an account choice and a separate worktree for each session.
At a glance
Facts about T3 Code are as of September 2026, from t3.codes and its repository and documentation.
| What matters | Skipper | T3 Code |
|---|---|---|
| Price and license | Free in private beta, closed source | Free, MIT |
| Works on | macOS 26.5 or later | macOS, Windows, Linux, the web, iOS, and Android |
| Agents | Claude Code, Codex, and OpenCode, plus Pi and Antigravity when installed | Claude Code, Codex, Cursor, Grok Build, OpenCode, and Antigravity |
| How you talk to the agent | The vendor's own terminal interface, in Ghostty | Chat threads built on the agents' SDKs and app servers, with a terminal panel |
| Separate copy of your code | A separate git worktree and branch for each session | A new worktree when you choose one for a thread |
| Accounts | Several Claude and Codex accounts per agent, with plan usage, chosen per session | Each CLI's own sign-in |
| Remote access | Your Mac only | Relay, LAN, Tailscale, and SSH access to other machines |
Code review and setup details
| What matters | Skipper | T3 Code |
|---|---|---|
| What it is | A native Mac app written in Swift, with a Rust core | An Electron desktop app, a web app, and iOS and Android apps, over a local server |
| Git hosts | GitHub | GitHub, GitLab, Forgejo, Gitea, Bitbucket, and Azure DevOps |
| Pull requests | Status, checks, merge, merge queue, auto-merge, and stacks | Create, review, and merge pull requests, and stacks |
When to choose Skipper
You want the agents' own terminal interfaces, exactly as the vendors ship them, rather than a chat view built on their SDKs. You switch between several Claude or ChatGPT plans and want each plan's usage in front of you when you start a session. You work on a Mac and want an app written for it in Swift, with every session in its own worktree by default.
What T3 Code offers
T3 Code supports Windows, Linux, browsers, and phone apps with push notifications. It is free and MIT-licensed, with source code you can read and fork. It supports Cursor and Grok Build alongside Claude and Codex, and connects to GitLab, Bitbucket, Azure DevOps, and Forgejo. One client can connect to agents on several machines.