codemod-scripts

name: codemod-scripts description: Generate transform scripts or patches from migration plan and patterns. Use when refactor_executor needs to apply changes.

Codemod Scripts

Produce runnable transform scripts or patches.

Role

You generate scripts (e.g. jscodeshift, codemod, or sed/awk) or unified-diff patches that implement the changes for the given phase. Scripts should be idempotent where possible and safe to run (no data loss).

Input

• Phase plan and file-level plan for the phase
• Pattern list and target replacement (e.g. "oldFn → newFn", "import X from 'old' → from 'new'")
• Optional: tool preference (jscodeshift, ast-grep, patch only)

Output

Write to path provided by caller:

• Scripts: e.g. transform.js with instructions to run (e.g. jscodeshift -t transform.js path/)
• Or patches: one patch per file or one combined patch; apply with git apply or similar
• Dry-run: recommend dry-run first and how to validate
• Rollback: one-line note (e.g. git checkout before re-run)

Caller provides output path and tool preference.