[BUG]Subdirectory slash commands in ~/.claude/commands/<dir>/ broken in 2.1.88

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?

Version: 2.1.88 (regression from 2.1.87)

Describe the bug:
Custom slash commands stored in subdirectories of ~/.claude/commands/ (e.g., ~/.claude/commands/gsd/help.md) are no
longer recognized. Invoking /gsd:help returns Unknown skill: gsd:help. These commands worked correctly in 2.1.87.

Steps to reproduce:

1. Create ~/.claude/commands/foo/bar.md with valid frontmatter (name: foo:bar)
2. Run Claude Code and type /foo:bar
3. Observe: Unknown skill: foo:bar

Expected: Command loads from ~/.claude/commands/foo/bar.md
Actual: Unknown skill: foo:bar

Workaround: Downgrade to 2.1.87 restores functionality.

What Should Happen?

Nothing should be broken - test by installing this

Error Messages/Logs

Steps to Reproduce

Steps to reproduce:

1. Create ~/.claude/commands/foo/bar.md with valid frontmatter (name: foo:bar)
2. Run Claude Code and type /foo:bar
3. Observe: Unknown skill: foo:bar

Expected: Command loads from ~/.claude/commands/foo/bar.md
Actual: Unknown skill: foo:bar

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.87

Claude Code Version

2.1.88

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_