Namespaced commands in subdirectories with colon syntax not working

Description

Commands placed in subdirectories under ~/.claude/commands/ with colon-based naming (e.g., name: gsd:help) are not being recognized or executed properly in recent Claude Code versions.

Expected Behavior

According to the documentation, commands organized in subdirectories should support namespacing:

• Commands in ~/.claude/commands/gsd/ should be accessible with namespace notation
• Commands with name: gsd:help in frontmatter should be executable as /gsd:help

Actual Behavior

• Commands with colon syntax in subdirectories (e.g., /gsd:help) timeout when invoked
• The commands are not appearing in /help output
• Commands exist in ~/.claude/commands/gsd/ directory with proper frontmatter but are inaccessible

Reproduction Steps

1. Create directory ~/.claude/commands/gsd/
2. Add command file help.md with frontmatter:

---
name: gsd:help
description: Show available GSD commands and usage guide
---

1. Try to execute /gsd:help - command times out
2. Check /help output - gsd commands not listed

Environment

• Claude Code version: Latest as of January 21, 2025
• Platform: macOS Darwin 24.6.0
• Directory structure:
• ~/.claude/commands/gsd/ contains 29 command files
• Each file has frontmatter with name: gsd:<command-name> format

Additional Context

This appears to be a regression as the documentation still shows support for namespaced directory structures. The same commands worked previously with the /gsd:command-name syntax.

Possible Solutions

1. Fix the subdirectory namespacing to recognize colon syntax in frontmatter names
2. Or clarify if the naming convention has changed and update documentation accordingly

Impact

This breaks existing command organization patterns for users who have structured their commands in logical namespaces/subdirectories.