[FEATURE] Wake an idle Claude Code Session (via a incoming webhook)

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

If you have a session of Claude Code running, then it seems the only option you have right now is to use the /loop [interval] to keep it alive and check something.

This can end up using a lot of tokens over many hours.

Proposed Solution

Allow Claude Code to run a local server with a webhook whereby you can pass a message directly into a session of Claude Code that is running and idle.

Alternative Solutions

I tried connecting two sessions via a task list CLAUDE_CODE_TASK_LIST_ID, then passing a task from a headless session to a non-headless one, but it didn't work for activating an idle non-headless session.

Priority

Medium - Would be very helpful

Feature Category

API and model interactions

Use Case Example

I could send an incoming webhoo to Claude Code running on a local port localhost:12345 which would then pass a command into a running session, thereby activating it, getting it to do a workflow, and then stopping.

Additional Context

_No response_