repren

What problem does it solve?

Repren solves the need for scalable codebase refactoring by enabling simultaneous multi-pattern search-and-replace, file and directory renaming, and case-preserving transformations across large codebases.

Core Features & Use Cases

• Perform multiple simultaneous pattern replacements across many files to refactor identifiers, API names, or constants.
• Rename files and directories based on content patterns while preserving directory structure and minimizing conflicts.
• Case-preserving transformations to handle camelCase, PascalCase, snake_case, and UPPER_CASE updates consistently across the project.

Quick Start

Use the repren skill to perform a safe dry-run across your project before applying changes, for example: uvx repren@latest --patterns=patterns.txt --full src/