Interface PendingEffect

Actor that queued the effect (the one who fired the action / activated the activity). Separate from claim.claimedBy, which is the actor that later picks it up for dispatch.

Authoring bindings preserved verbatim (GROQ strings over the rendered scope). The resolved concrete values live on params. Useful for audit / debugging — the runtime should always read from params.

Presence = a drainer is dispatching this entry. Absence = the entry is unclaimed and eligible for drain. Settled entries (any EffectRunStatus) don't live on pendingEffects[] at all; they move to effectHistory[].

_key of the stage entry this effect was queued under — for a transition's effects, the entry being entered. Carried onto the completion's history row, where it is what ties a run to its stage entry for the $effectStatus read. Absent only on entries persisted before the engine stamped it.