Module observation 

What one execution of an item actually did.

An Observation is read back from the same places an operator would look after an incident — the replay record, the command journal, the event ledger, the interaction store, the phase marker and the persisted turn — and nowhere else. Nothing here is inferred from the model’s words, which is why a judge can never be asked whether an effect happened: by the time a judge sees anything, the effects have already been read from storage.

The observation is also what makes sampling meaningful. Its signature is a canonical rendering of the deterministic facts of one run, so two samples that behaved identically collapse to one string and two that did not, do not.

Structs

Observation

Everything one execution of an item left behind.

ObservedAct

One act the message was understood to ask for, as the replay record holds it.

ObservedInteraction

One persisted card, as the interaction store holds it.

ObservedResolution

How one act’s target resolved.

ObservedState

A case’s state on both sides of the turn.