Recognises a change to a deployed structure with no migration
A change to a deployed table with no migration and transition.
Can AI do this?
People still lead Few or none of the tested AI models showed they master this. 0 of 4 models in the current benchmark master it.
| Model | Tier | Probability of mastery | Status |
|---|---|---|---|
| gemini-4-argon | Flagship | 10% | Not mastered |
| gemini-3.5-flash-lite | Low cost | 11% | Not shown |
| gpt-6-luna | Low cost | 10% | Not mastered |
| claude-haiku-5-5 | Low cost | 10% | Not shown |
Mastered means a probability of at least 90% that the model has this knobit, estimated from its graded answers. “Not shown” means the answers do not settle it either way. How the models are tested.
What it looks like in practice
Expected result: A migration with a transition period (expand and contract)
How it is assessed: Flags the deficient case and passes the acceptable one. Deficient: MC-032 migration: null Acceptable: Expand-contract: column kept read-only for one release, then dropped
Also known as: No migration for a deployed structure
Related knobits
Builds on
Usually followed by
All 7 knobits of Maintain and version data models.
Source: Review checklist maintenance-versioning, row 4 (A&S)