Remote control command not picked up by idle session

Bug Description

A remote control command sent to an idle Claude Code session was not picked up. The session was not actively processing any tool calls or generating output at the time — it had completed its previous work and should have been waiting for input.

Steps to Reproduce

1. Enable remote control for a session (/config → enable remote control)
2. Claude completes a multi-step task and returns results to the user
3. User sends a remote control command while the session is idle/waiting
4. The command is never received by the session

Expected Behavior

Remote control commands should be picked up by idle sessions that have completed their previous work.

Actual Behavior

The command was silently dropped. The user had to manually re-enter the message in the CLI.

Environment

• macOS Darwin 24.6.0
• Claude Code with Opus 4.6 model
• Remote control was enabled via /config at session start