Breaking

New Tool 'peer' Aims to Let Claude Code and Codex Message Each Other Directly

November 7, 2026 at 20:45 EST

Software Dev & Coding
AI Agents

A developer has built 'peer,' a small tool that lets AI coding agents Claude Code and Codex send messages to each other without anyone typing into their terminals.

Multi-agent coding · Open tool

A small tool lets coding agents message each other, so developers stop relaying text by hand

"peer" routes messages between Claude Code and Codex by agent name, delivers them through each agent's existing input path, and reports whether they arrived. The aim is to remove the copy-and-paste step between terminals.

The handoff, before and after

Who carries the message between two agent sessions

Manual relay

Agent A
Output in terminal

→

Developer
Copies and pastes

→

Agent B
Input in terminal

With peer

Agent A
Addresses agent by name

→

peer
Routes the message

→

Agent B
Receives via its input path

↺ Delivery feedback returns to the sender

What the tool is designed to do

Route messages between agents by name
Deliver through each agent's existing input path
Confirm to the sender whether a message arrived
Keep agent messages from colliding with the user's typing

What remains unconfirmed

Installation requirements and supported platforms
Error handling and conflicting instructions
Maintenance status and open licensing
Independent testing and developer reaction

Key takeaway

If it works as described, agents from different vendors could coordinate through local tools instead of manual relay

Practical reliability is still unverified. Adoption will likely depend on three conditions:

Concurrency

Automated and manual input must not collide in one session

Security boundaries

Agents should only reach the peers they are allowed to reach

Unintended influence

One agent's output should not silently change another's behavior

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