• Initial analysis of review comments
• Update cask_loader.rb to match formulary.rb logic pattern more closely (use path.to_s instead of path.expand_path.to_s)
• Move test from cask_loader_symlink_spec.rb to cask_loader_spec.rb
• Replace File.join with Pathname#/ operations in test
• Use Pathname methods instead of strings throughout test
• Remove the separate cask_loader_symlink_spec.rb file
• Run style checks and type checks - all passing
• Apply DRY/simplify/YAGNI principles
• Remove typed: strict from test file (tests should never be typed: strict)
• Simplify test to use built-in mktmpdir helper instead of custom tmpdir setup
• Update cask_loader.rb to fully match formulary.rb pattern with .rb extension checks, path count validation, and proper exception handling
• Fix all style and typecheck errors
• Extract shared path validation logic from cask_loader.rb and formulary.rb into utils/path.rb to eliminate code duplication

Refactoring Changes

The duplicate path validation logic that existed in both cask_loader.rb and formulary.rb has been extracted into a new shared method Utils::Path.validate_package_path in utils/path.rb. This refactoring:

• Eliminates code duplication: The identical path validation logic is now centralized in one location
• Maintains exact behavior: Both cask and formula validation work exactly as before
• Improves maintainability: Future changes to path validation logic only need to be made in one place
• Follows DRY principles: Reduces the codebase size and complexity

The shared method handles validation for both casks and formulae with appropriate error messages while preserving all the original security checks and tap detection logic.

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