[BUG] New commands not recognized in existing sessions; no way to trigger recognition

Environment

• Claude CLI version: 0.2.69
• Operating System: macOS 15.3.2
• Terminal: Any

Bug Description

When I add a new command to ~/.claude/commands (or the project), it is not available to existing claude sessions until they restart.

Steps to Reproduce

1. Open a claude session
2. Create a command, i.e. ~/.claude/commands/hello-world.md
3. In the opened claude session, type /user:hello-world and you won't see it

Expected Behavior

I would hope that it would notice new commands periodically, but at a minimum there should be a way to trigger it to rebuild the list of commands.

Actual Behavior

Nothing.