Mutation Reports

Mutation testing rewrites the bytecode and checks whether the test suite catches each change — a far harder bar than line coverage. These pages render each module’s PIT result (mutations.xml) in the site design: kill rate, test strength, the per-mutator breakdown, and the actual surviving-mutant list.

The mature library modules carry the production guarantee; the credential modules added in 00.71 and the developer-experience modules from 00.72 ship at a first PIT pass with uplift tracked for 00.73.