T3 Code releases open-source control surface for managing multiple AI coding agents

• T3 Code is an open-source "agent harness control surface" that manages multiple AI coding agents from a single interface across mobile, web, and desktop platforms.
• The tool supports existing subscriptions for Claude Code, Codex, Cursor, Grok Build, OpenCode, and Google Antigravity, requiring local installation and authentication of at least one provider.
• Available as an MIT-licensed project with 28.4k GitHub stars, it offers installation via command line scripts, package managers (Homebrew, Winget, Scoop, AUR), and direct downloads for Windows, macOS, and Linux.

Supported Agents and Requirements

• Users must install and authenticate specific CLIs for each provider (e.g., codex login, claude auth login, grok login) before T3 Code can control them.
• Google Antigravity is supported via in-app settings and Google sign-in without requiring a separate CLI installation.

Installation and Access

• The project provides a web app at app.t3.codes, native iOS and Android apps, and an Electron-based desktop client.
• Command-line installation uses curl or PowerShell scripts, with options to run as a background service or via npx for temporary use.
• The project is in early stages, with limited contribution acceptance and documentation currently hosted directly in the GitHub repository.