HCD.10:5.2 - Keep the Thirty-Minute Core Probe and Its Fifteen-Minute Fragment Distinct

The final core probe lasts thirty minutes. Within it, one fifteen-minute fragment is performed while AI is unavailable. The supplied tables and an ordinary calculator remain available. The bounded human action is to recover the specified time or configuration constraint, reject an unsupported release, and propose a supported next move; a large calculation and full written solution are not required.

The no-AI condition applies to that fifteen-minute fragment, not to the entire thirty-minute core probe or the programme’s main task. Normal pattern and AI access remains permitted for the main task. The result records whether the person performed the narrow contribution and what other help was needed. It is a changed-support observation inside the stated probe, not spacing, a universal AI-withdrawal rule, or a retention conclusion. HCD.13 governs the later delay/support interpretation.