What is this?
T3 Code is an 'agent harness control surface': mobile apps for iOS and Android, a web app, and an Electron desktop app for controlling AI coding agents running on your own machine.
T3 Code is an 'agent harness control surface': mobile apps for iOS and Android, a web app, and an Electron desktop app for controlling AI coding agents running on your own machine.Is this a desktop app, a web app, or a phone app?All three — an Electron desktop app for Windows, macOS and Linux, native iOS and Android apps, and a web UI. They are all frontends to a T3 Code server running on the machine where your agents live.
All three — an Electron desktop app for Windows, macOS and Linux, native iOS and Android apps, and a web UI. They are all frontends to a T3 Code server running on the machine where your agents live.How do I get it running?Fastest way: run npx t3@latest in a terminal (needs Node.js 22.16+, 23.11+, or 24.10+) — it starts the backend plus a local web app. Otherwise install the desktop app from GitHub Releases, winget, Homebrew, or the AUR.
Fastest way: run npx t3@latest in a terminal (needs Node.js 22.16+, 23.11+, or 24.10+) — it starts the backend plus a local web app. Otherwise install the desktop app from GitHub Releases, winget, Homebrew, or the AUR.Which coding agents can it control, and do I need them ready first?It works with your existing subscriptions on Claude Code, Codex, Cursor, Grok Build, OpenCode, and Google Antigravity — and yes, at least one provider must already be installed and authenticated on your machine before T3 Code is useful.
It works with your existing subscriptions on Claude Code, Codex, Cursor, Grok Build, OpenCode, and Google Antigravity — and yes, at least one provider must already be installed and authenticated on your machine before T3 Code is useful.Is it stable enough to rely on day to day?Not yet — the team says the project is very early and to expect bugs. They are also mostly not accepting contributions right now: small fixes may land, big features will not.
Not yet — the team says the project is very early and to expect bugs. They are also mostly not accepting contributions right now: small fixes may land, big features will not.Is T3 Code a paid product, or open source?Free and open source under MIT. The README answers 'what are you selling me?' with 'nothing', and the team wants you to be able to fork and build the editor you want if they ever go the wrong direction.
Free and open source under MIT. The README answers 'what are you selling me?' with 'nothing', and the team wants you to be able to fork and build the editor you want if they ever go the wrong direction.Why build this instead of using the Codex desktop app or Cursor?The authors tried existing solutions like the Codex desktop app, Conductor, Claude Desktop and Cursor Glass, but none met their bar. They wanted something performant, remote-ready, and truly open — open enough that you can fork it and build the editor you want.
The authors tried existing solutions like the Codex desktop app, Conductor, Claude Desktop and Cursor Glass, but none met their bar. They wanted something performant, remote-ready, and truly open — open enough that you can fork it and build the editor you want.Can I run several accounts of the same agent?Yes — the docs include a multiple-accounts guide covering Codex and Claude specifically, alongside permission modes, source control integrations, and keyboard shortcuts.
Yes — the docs include a multiple-accounts guide covering Codex and Claude specifically, alongside permission modes, source control integrations, and keyboard shortcuts.Does it keep working if I close the terminal?Yes — there is a documented way to run T3 Code as a background service, so the server that reaches your agents stays up without a terminal window open.
Yes — there is a documented way to run T3 Code as a background service, so the server that reaches your agents stays up without a terminal window open.What are similar projects?hapi, vicoa, happy, paseo, orca, zeron, munder-difflin, visual-explainer
hapi, vicoa, happy, paseo, orca, zeron, munder-difflin, visual-explainerWhich topics is it in?remote-control, antigravity, agent-harness, grok, opencode, mobile-app, electron, cursor, coding-agent, ios, web-app, codex
remote-control, antigravity, agent-harness, grok, opencode, mobile-app, electron, cursor, coding-agent, ios, web-app, codex