refactor

Multi-file refactoring is safe when executed via a baseline-driven plan that verifies typecheck and tests pass after changes. This approach establishes a contract to automatically revert modifications if verification fails, ensuring behavior remains stable.

Renaming a symbol across a codebase requires a plan-and-execute workflow that applies the changes and then runs typecheck and tests. If the verification step detects regressions, the process automatically rolls back the modifications.

Yes, refactoring with automatic rollback establishes a strict contract where the codebase must typecheck and pass tests after changes. If verification fails, the workflow automatically reverts the modifications to maintain stable behavior.

A plan-and-execute workflow handles extractions and moves by first planning the multi-file changes against a baseline, executing them, and verifying behavior through typecheck and tests. If validation fails, the changes are rolled back automatically.

A baseline-driven workflow is needed for multi-file refactoring tasks like splits and merges to ensure safe, auditable changes. It guarantees that if typecheck and tests fail post-execution, the system automatically reverts to the stable baseline.

Automated refactoring relies on existing tests and typecheck verification to ensure behavior remains stable after changes. Without these baseline checks, the system cannot establish the contract needed to safely execute and roll back modifications.