Antgrid VS Happy Coder

Antgrid's answer

Antgrid is one control plane for the coding agents on every machine you own. It runs the agent CLIs you already have installed, each with its own config, skills, hooks and MCP servers, and shows every session on every machine in one list.

Handler takes the follow-ups on long-running work in Claude Code, Codex and opencode sessions. You tell it what's left, how to proceed and when to ask you. It checks the agent's replies against those instructions and won't close a step until it can quote the evidence from the session. Its judge is your own agent CLI on your own provider account: no Antgrid model in the loop.

Traffic between your devices is end-to-end encrypted, and the source is public, so you can check all of this yourself.

Antgrid's answer

Keep the agents you already use. Antgrid runs nine of them, including Claude Code, Codex, Cursor and Copilot, instead of replacing them with its own.

Keep your code yours. Your devices connect over QUIC with TLS 1.3. When there's no direct route, a relay forwards packets it holds no key to. Antgrid's servers never see your code, prompts or terminal output.

Check it rather than trust it. The app, bridge and wire protocol are open source under MPL-2.0, and the source of the relay and account service is public under the Elastic License 2.0.

Antgrid is free during the beta, with Handler included.

Antgrid's answer

Developers who run coding agents such as Claude Code, Codex or Cursor on long tasks, often on more than one machine: a laptop, a workstation, a server.

Antgrid is for the moments the agent stops and waits. You can answer from another machine or from your phone, or hand the follow-ups to Handler and hear from it when it needs your input or reaches a checkpoint you set.

Antgrid's answer

Antgrid is made by Radha AI, a developer tools company founded in 2024.

We use coding agents on long-running work, and the agent keeps stopping: a question, a permission prompt, a "finished" that still needs checking. The gap between those phases kept bringing us back to the desk.

So we built Antgrid to put every session on every machine in one place you can reach from any of your devices, and Handler to take the follow-ups that don't need you.

Antgrid's answer

• Flutter for the desktop and phone apps.
• TypeScript on Bun for the bridge, which runs beside your agents on each machine.
• Iroh for the connection between your devices: QUIC with TLS 1.3, direct where possible and through an Iroh relay when there's no direct route.
• TypeScript on Bun for the control service (discovery and presence) and the account service, which uses Hono, Prisma and PostgreSQL.