Have Claude Code and Codex review each other's work
One agent makes the change, an agent from another lab reviews it, and they go back and forth until both approve. You read every message.
You need Exawatt for Mac, with Claude Code and Codex installed and signed in.
1. Start two agents
Open your project from the Start screen. Press ⌘T, choose Claude Code and press Enter. Press ⌘T again and start Codex the same way. Each tab shows the agent's name, such as claude-1 and codex-1.
2. Send both one line
Switch to Fleet, drag around both agents, press ⌘D and paste:
@claude-1, fix the failing test in checkout.test.ts. @codex-1, review @claude-1's change and send it your notes. Go back and forth until you both approve, or stop after three rounds, then tell me what you still disagree on.
Press ⌘↩. Each agent shows whether it got the message.
3. Read along
Switch to Team, press ⌘B and choose Chatter. Every message between the two agents appears as it is sent. Open one to read the whole thread, or use Send as operator to settle a point yourself.
To stop early, tell either agent to stop. Every round uses both your Claude and your Codex plan, so keep the round limit in the prompt.
The same loop on a contract
Two agents can redline a document until they agree. Open the folder that holds the contract, start both agents, and send:
@claude-1, you represent the buyer. @codex-1, you represent the seller. Redline contract.md one round at a time, sending each other your changes and your reasons, until you both accept the same text. Write it to contract-agreed.md and tell me what you could not agree on.
More prompts are in How agents talk to each other.