[BUG] Custom commands disappear from autocomplete after first use — requires CLI restart

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Custom commands stored in ~/.claude/commands/ stop appearing in the / autocomplete menu after invoking any command once during a session.

What Should Happen?

Custom commands should remain in the autocomplete menu after being invoked, without requiring a CLI restart.

Error Messages/Logs

Steps to Reproduce

1. Create custom commands in ~/.claude/commands/MyCommands/ (e.g., my-command.md)
2. Start Claude Code CLI
3. Type / — commands appear in autocomplete ✓
4. Select and run a command (e.g., /MyCommands:my-command)
5. Command executes successfully ✓
6. Type / again — custom commands no longer appear in autocomplete ✗
7. Typing /MyCommands also shows nothing ✗
8. Only way to restore: exit and restart Claude Code CLI

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.80

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_