https://specdd.ai/how-to/refactoring-and-maintenance/Spec-driven development refactoring and maintenance guides for preserving behavior, updating specs, moving files, extracting modules, retiring obsolete specs, and removing dead code.Hugoen-ushttps://specdd.ai/how-to/refactoring-and-maintenance/how-to-refactor-with-specdd/https://specdd.ai/how-to/refactoring-and-maintenance/how-to-refactor-with-specdd/Refactor with spec-driven development by capturing current behavior in local specs, confirming authority, changing structure in small steps, and verifying behavior stayed the same.https://specdd.ai/how-to/refactoring-and-maintenance/how-to-refactor-with-agents-safely/https://specdd.ai/how-to/refactoring-and-maintenance/how-to-refactor-with-agents-safely/Refactor with agents safely by constraining scope, reviewing the plan, preserving spec-driven development behavior, running checks, and rejecting boundary-crossing changes.https://specdd.ai/how-to/refactoring-and-maintenance/how-to-update-specs-during-refactoring/https://specdd.ai/how-to/refactoring-and-maintenance/how-to-update-specs-during-refactoring/Update SpecDD specs during refactoring in a spec-driven development workflow by changing ownership, paths, structure, references, tasks, and Done when only when the refactor changes them.https://specdd.ai/how-to/refactoring-and-maintenance/how-to-retire-obsolete-specs/https://specdd.ai/how-to/refactoring-and-maintenance/how-to-retire-obsolete-specs/Retire obsolete SpecDD specs safely in a spec-driven development workflow by proving they no longer govern behavior, moving live rules, checking references, and deleting stale files with validation.https://specdd.ai/how-to/refactoring-and-maintenance/how-to-split-modules-with-local-specs/https://specdd.ai/how-to/refactoring-and-maintenance/how-to-split-modules-with-local-specs/Split modules with local SpecDD specs in a spec-driven development workflow by preserving parent constraints, moving ownership to child specs, avoiding duplicated rules, and verifying behavior.https://specdd.ai/how-to/refactoring-and-maintenance/how-to-move-code-without-losing-spec-authority/https://specdd.ai/how-to/refactoring-and-maintenance/how-to-move-code-without-losing-spec-authority/Move code without losing SpecDD authority in a spec-driven development workflow by moving or updating local specs, ownership paths, references, same-basename matches, and checks.https://specdd.ai/how-to/refactoring-and-maintenance/how-to-extract-a-module-with-specdd/https://specdd.ai/how-to/refactoring-and-maintenance/how-to-extract-a-module-with-specdd/Extract a module with spec-driven development by defining target ownership, preserving behavior, moving tests, updating dependencies, and keeping specs and code aligned.https://specdd.ai/how-to/refactoring-and-maintenance/how-to-rename-or-move-files-without-breaking-spec-resolution/https://specdd.ai/how-to/refactoring-and-maintenance/how-to-rename-or-move-files-without-breaking-spec-resolution/Rename or move files without breaking SpecDD resolution in a spec-driven development workflow by updating same-basename specs, directory specs, path references, roots, and validation checks.https://specdd.ai/how-to/refactoring-and-maintenance/how-to-remove-dead-code-with-specdd/https://specdd.ai/how-to/refactoring-and-maintenance/how-to-remove-dead-code-with-specdd/Remove dead code with spec-driven development by proving behavior is obsolete, updating governing specs, deleting code and tests safely, and avoiding stale rules.