Code

• Prefer clear ownership, explicit boundaries, and minimal coordination.
• Resolve competing principles in favor of correctness and understandability.

Coherent design

• Integrate changes into the design. Refactor affected code when this materially improves clarity, simplicity, or correctness.
• Prefer the simplest coherent result over the smallest diff.
• Revise or replace abstractions that no longer fit. Do not preserve them by accumulating wrappers, flags, exceptions, or duplicated paths.
• Complete replacements: migrate affected callers, update tests and documentation, and remove superseded code.
• Keep refactoring tied to the requested outcome.

Compatibility