Quick answer: The modeling layer runs bidirectional impact analysis between API operations and tables. Given an operation, it names the tables and keys it touches, and given a table, it names the operations that depend on it. A schema change therefore shows both the affected operations and the database writes it may require, rather than leaving the relationship to manual tracing.

Why a change is rarely local

A change that looks confined to one request often reaches the storage. Adding a field, changing a type, or removing a relation can require a column, a foreign key, or a migration, and the operations that read the same table can be affected even when their own schemas did not change.

Reading the contract alone misses that reach.…