c2c

Overview

Goal

Make it possible for one local Claude session to send a message to another local Claude session without using Claude Teams.

Validated Result

The most important validated result is:

• PTY-master injection works against a live normal Claude session on this machine.

That means a local process can inject a message that shows up as a real user turn in the target session transcript, and the target Claude responds normally.

Why This Matters

Most obvious approaches did not work:

• --resume did not inject into already-running sessions
• writing to /dev/pts/N directly did not work reliably
• transcript/history mutation did not affect a live session
• Teams mailboxes were a relay surface, but that was the wrong transport for this project

The PTY-master path is the first result that genuinely reaches a running top-level Claude session as a normal prompt.

Current Command Set

• claude-list-sessions
• claude-send-msg
• claude-read-history

Important Boundary

This project currently validates a transport and a toolchain, not a finished autonomous agent runtime.

Validated:

• one Claude session can inject a real prompt into another running Claude session
• that prompt appears in the target transcript as a normal user turn
• the target session responds normally

Not yet cleanly validated end-to-end:

• two top-level Claude sessions sustaining a 20-turn exchange with no corrective steering at all

These are wrappers around Python tools in this repository.