## CHANGES
- Require exactly two arguments: directory and instructions
- Remove dedicated help flag, use flag.Usage instead
- Improve directory validation to check if it's a directory
- Inline pattern parsing, removing separate function
- Simplify error messages for better clarity
- Update usage text to reflect required instructions parameter
- Print usage to stderr instead of stdout
## CHANGES
- Rename tool from `fabric_code` to `code_helper`
- Update all documentation references to the tool
- Update installation instructions in README
- Modify usage examples in documentation
- Update tool's self-description and help text