List hygiene
Every exclusion applied and recorded.
The first pass is deliberately narrow, and widened only on request. Each stage writes down what it changed and why. Lineage survives the handover rather than being stripped at the door.
Correction
Updating what has changed, wherever a current value can be established.
Whitespace discipline
Removing the invisible differences that make two identical values compare as different.
Delivery verification
A final pass against the agreed criteria at the point of handover, not at the point of assembly.