T3 Code is an "agent harness control surface". It enables control of the agents on your machine with a best-in-class mobile app, web app and Electron-based desktop app.
Works with your subscriptions on Claude Code, Codex, Cursor, Grok Build, and OpenCode. If they're set up on your computer, T3 Code can control them.
Nothing. We built T3 Code because we wanted the best possible development experience with agents. We were inspired by existing solutions like the Codex desktop app, Conductor, Claude Desktop and Cursor Glass, but none met our bar.
We wanted something performant, remote-ready, and truly open. If we ever go the wrong direction, we want you to have everything you need to fork and build the editor that you want.
Warning
T3 Code currently supports Codex, Claude, Cursor, Grok Build and OpenCode. Install and authenticate at least one provider before use:
- Codex: install Codex CLI and run
codex login - Claude: install Claude Code and run
claude auth login - Cursor: install Cursor CLI and run
cursor-agent login - Grok Build: install Grok Build CLI and run
grok login - OpenCode: install OpenCode and run
opencode auth login
The easiest way to test T3 Code is to run the server in your terminal:
npx t3@latestThis will launch T3 Code's backend on your machine as well as the local web app to control your agents.
Tip: Use npx t3@latest --help for the full CLI reference.
Install the latest version of the desktop app from GitHub Releases, or from your favorite package registry:
winget install T3Tools.T3Codebrew install --cask t3-codeyay -S t3code-binWe are very very early in this project. Expect bugs.
We are (mostly) not accepting contributions yet. Small fixes may be considered. Big features will not be.
There's no public docs site yet, checkout the miscellaneous markdown files in docs.
This checkout is a maintained fork of pingdotgg/t3code. In addition to upstream T3 Code, it
includes:
- Richer work logs with command output, provider-specific tool titles, collaboration labels, and inline file-change diffs for Codex, Claude, and OpenCode with persistent line wrapping and expandable full-context regions.
- Scalable thread history and recovery, including bounded activity storage, scroll-up pagination, restart recovery, cross-client deletion handling, and more reliable interrupted/input lifecycles.
- Provider continuity features such as switching provider or model mid-thread, model favorites, context and usage limits, and improved OpenCode skill/session support.
- File, diff, preview, and terminal improvements including binary-safe diffs, focused expandable sidebar diffs, workspace and external image previews, an embedded web surface, and terminal paste.
- Attention and status improvements including background-task waiting state, retention of important and recent threads, dismissible errors, and reliable settling of inactive threads.
These capability groups are rebase invariants, not an exhaustive changelog. See AGENTS.md for the checks required after updating from upstream.
- Getting started
- Remote access
- Keeping T3 Code in sync
- Architecture overview
- Provider guides
- Operations
- Reference
T3 Code uses Vite+ so you'll need to install the global vp command-line tool.
curl -fsSL https://vite.plus | bashirm https://vite.plus/ps1 | iexCheckout their getting started guide for more information: https://viteplus.dev/guide/
vp iRead CONTRIBUTING.md before opening an issue or PR.
Need support? Join the Discord.