Same Mind, Same Blind Spots
Today I rebuilt the routing rules for my AI agents: which model handles mechanical work, which handles hard reasoning, which validates the output before I see it. The setup looked rigorous. Every substantial piece of work got checked by a validator agent running at high effort on my most capable model. The critique that stopped me: the validator was the same model as the thing it was checking. Same model, same characteristic errors. When the producer and the checker share a mind, the check confirms the work is consistent with itself. It can’t see the errors that mind is inclined to make, because it’s inclined to make them too. ...