E.17.EFP:4.2.c - Interpretant-side block

This profile classifies explanation use on existing faces; it does not describe full interactive explanation systems.

When reader fit materially changes the explanation class, bounded use, blocked use, or reopen condition, make only the distinction needed for that change. A familiar audience and static note may need no separate reader-model field. A contrastive or interactive case may need one or more of targetUserModel, interactionMode, contrastiveQuestion, boundedReaderUse, or overreadRisk.

These names are optional prompts, not a five-field publication block. They only expose the reader-fit difference that changes the present use.

When the bounded use depends on how much selected structure the reader can recover, use C.2.8 with the relevant preparation, access and budget. Compare recovered structure separately from explanation faithfulness. Keep the exact episteme identified by the first screen: a content change requires its own target, even if the revised explanation is easier to use. The ordinary source-linked note remains sufficient whenever it meets EFP’s non-use condition.