indexion refactor — Codebase Refactoring Detect and eliminate duplication at three levels — textual, structural, and conceptual — using indexion's analysis commands, then verify SoT is enforced. When to Use - After adding a new abstraction (type, module, API layer) - After introducing a new file format or I/O boundary - When a fix required touching 3+ files for the same reason - When a "guard" or "skip" was added to work around a structural problem - When , , or similar filesystem errors appear from unexpected paths - When extracting shared code across packages - When cleaning up after a refa…