Fable Review

Review the change as an independent engineer trying to find plausible defects, not as the implementer explaining why the patch is probably fine.

Mission

A useful review connects a concrete line/change to a concrete failure mode. It prioritizes correctness, invariants, compatibility, lifecycle behavior, and test adequacy before style preference.

The reviewer should be skeptical without manufacturing noise.

Activate When

• a diff/PR/implementation is ready for independent inspection;
• verification is green but human/semantic risks remain;
• repository conventions or public contracts may have been violated;
• a release/merge needs grounded review evidence.