shell

# Shell Channel Communication channel for `zylos shell` — the CLI interactive mode. ## How It Works 1. `zylos shell` starts a readline REPL and a Unix domain socket server 2. User input is sent to Claude via `c4-receive` (channel=shell, endpoint=socket path) 3. Claude responds via `c4-send` which invokes `scripts/send.js` 4. `send.js` connects to the Unix socket and delivers the response to the REPL 5. The REPL prints the response and prompts for the next input ## Socket Protocol - Socket path is passed as the endpoint (e.g., `/tmp/zylos-shell-<pid>.sock`) - `send.js` connects, writes the full message as UTF-8, then closes the connection - The REPL reassembles the message from socket data events