A four-message decision challenge

Same words.
Different scope.
One wrong cancellation.

Choose the action for the mobile plan in four near-identical customer messages. Then uncover the saved decisions from Jev 1.13.0 and a frozen Qwen3-4B. No model runs in this page.

The published S01 case
4 / 4

Can you keep the target straight across all four messages?

The 4B missed one text in both candidate mappings.

Your turn first.

For each message, decide whether to KEEP or CANCEL the target. Only the mobile plan matters; phone insurance is a distractor. Your selections stay in this browser and are not collected.

TARGET · MOBILE PLAN

0 of 4 decisions selected

548 model calls. The missing baseline needs zero.

A later Kev-LoRA line reader made fewer wrong actions but far more needless deferrals. Compare it with always-defer and grammar-specific code, then change which deferrals cost effort. The outcome depends on the cost assumption. This is a separate development study with no new Jev results.

Can 548 calls beat always deferring? →

A subsequent joint-routing pilot assigned 60 of 66 other-request lines to target fields and failed its fixed screen. Inspect every saved query in the completed follow-up →

Target-switch inputs hold every record fixed and change only the requested ID. Same records, different request: explore all 24 pairs → This input explorer shows program references, with no model predictions. The local diagnostic is now complete: read all results, failure cases and limitations →

Inspect the evidence and limits

This is original synthetic English text with program-derived, AI-reviewed reference actions and no independent human label audit. The page embeds 32 saved S01 model decisions across two backends, two mappings and two rounds; four code-reference decisions are recomputed from the declared grammar. Copying its short prompt into another model is an informal test with a different interface; it cannot be compared numerically to the frozen run without matching that protocol. The page makes no API call and sends no choices anywhere.