Custom slash commands not loading after update to v1.0.62

Issue Summary

Custom slash commands defined in ~/.claude/commands/ directory are no longer being recognized after updating to
Claude Code v1.0.62. Only built-in commands (/init, /pr-comments, /review) are available.

Steps to Reproduce

1. Have custom slash commands in ~/.claude/commands/ directory (e.g., bugfix.md, test.md, etc.)
2. Update Claude Code to v1.0.62
3. Start interactive session with claude
4. Try to execute custom command like /bugfix

Expected Behavior

Custom slash commands should be loaded and available for use, as they were in previous versions.

Actual Behavior

• Custom commands are not recognized
• Error message: Unknown command: /bugfix. Available commands: /init, /pr-comments, /review
• Only built-in system commands are available

Environment

• Claude Code Version: 1.0.62
• Platform: Windows (win32)
• Node.js Version: v20.19.1
• Commands Directory: C:\Users\guang\.claude\commands\
• Commands Present: ask.md, bugfix.md, cicd.md, code.md, custom-help.md, debug.md, deploy-check.md, docs.md,

optimize.md, refactor.md, review.md, security.md, spec.md, test.md, think.md

Additional Context

• Commands were working perfectly 8 hours ago before the update
• Command files are properly formatted Markdown files
• claude doctor command shows various errors related to "Raw mode is not supported"
• This appears to be a regression introduced in v1.0.62

Sample Command File Format

## Usage
/bugfix <ERROR_DESCRIPTION>

## Context

• Error description: $ARGUMENTS
• Relevant code files will be referenced using @ file syntax as needed.

[... rest of command definition ...]

Impact

This is a significant regression that breaks existing workflows and productivity setups that rely on custom
commands.