Improvements

Better Installation Type Detection

• More robust detection of installation methods:
• npm-local: Installed in ~/.claude/local
• npm-global: Installed via global npm
• native: Platform-specific installation
• development: Running from development build

Enhanced Permission Checking

• Improved detection of npm permission issues for global installations
• Better recommendations for fixing permission problems
• Clearer messaging about when to use claude migrate-installer

Smarter Configuration Migration

• Automatic migration from old autoUpdaterStatus to new installMethod/autoUpdates format
• Handles legacy configurations gracefully:
• "migrated" → installMethod: "local"
• "installed" → installMethod: "native"
• "disabled" → autoUpdates: false