How to Stop an AI Agent from Inventing Nigerian Postcodes

On 1 October 2026, Nigeria's postcode changed from six digits to an 11-character code that identifies a single building, such as EK-01-A03-FK-01. Language models trained before that date still describe the old format with full confidence. That affects two kinds of agent: a coding agent that writes your validation code, and a runtime agent that... Weiterlesen: How to Stop an AI Agent from Inventing Nigerian Postcodes