GILD analysis
T3 Code Review
T3 Code is a free, MIT-licensed app that runs the coding agents signed in on the user's machine, Codex, Claude Code, Cursor, Grok Build, OpenCode and Antigravity among them, from a desktop, browser or phone, with worktrees and cross-agent sub-agents. It is early: new threads start in Full access, it runs locally on each agent's own login, and Anthropic asks Agent SDK products to use API keys. Adopt it for engineers who mix vendors once permissions and Claude accounts are settled.
- AI Coding Agents
- Agentic Development
- AI Costs
The decision
- Best fit
- Engineers and small teams who use agents from more than one vendor and want to run them side by side, hand work between them, and reach them from a phone.
- Consider another workflow
- If everyone uses one vendor's agent, use that vendor's app; if you need SSO, audit logs or a support contract, ask T3 Tools first, since T3 Code is an MIT-licensed app that runs locally on each agent's own login with support through its Discord.
- Adoption condition
- Change the default permission mode from Full access, keep telemetry as a conscious choice, and confirm how Claude and ChatGPT plans may be used through it.