Apply refactors safely across multiple files

Apply consistent edits across multiple files safely

Refactoring identical symbols across 10+ files when manual diff review would be error-prone.

• · pattern (import rename, symbol rename, call signature)
• · file list
• · context for validation

• · edited file collection
• · diff report

• · AST parser
• · diff/merge tool

Pattern must be unambiguous across codebase; all matching instances must be valid

Pattern matches false positives (string literal contains import name); partial renames leave inconsistency; merge conflicts in version control

• · Detected common-shape-acronym prevents scope creep
• · Validation step checks all replacements before commit
• · Diff report provides reviewability