[BUG] Custom slash commands no longer working

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 slash commands are no longer available on Windows.

I use custom slash commands frequently; they were very recently (9/5 I think), not today (9/7). They do not show on auto-fill and if I type in the command exactly I get "Unknown slash command: {rule-name}".

I have my commands in the .claude\commands folder of the repo.

I verified I opened Claude Code in the correct directory, and I tried with several projects. I tried also tried clearing the Users\{user}\.claude\projects folder, that also did not resolve.

May be related to https://github.com/anthropics/claude-code/issues/7271

What Should Happen?

I should be able to use custom slash commands.

Error Messages/Logs

Custom slash commands do not auto-fill when typing and if typed in fully Claude Code responds with "Unknown slash command: {rule-name}".

Steps to Reproduce

• Have a custom slash command in the .claude/commands folder of your project.
• Attempt to use the custom slash command

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.0.108

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Cursor

Additional Information

_No response_