OptionalgrantsURL path for grant resolution — see StartInstanceArgs.grantsFromPath.
OptionalidempotencyCaller-supplied key that makes this call safe to retry blind (a network
failure ate the response; a queue redelivered the message). The first
commit records the key on the instance's processedRequests[] ledger —
in the same CAS write as the operation itself — and a retry carrying the
same key replays instead of double-applying (or, for a completed effect,
throwing EffectNotFoundError): the operation is NOT re-applied, but
the cascade runs to convergence (the original may have died before its
own cascade), so changed is false unless that cascade repaired
something. Keys live for the engine's idempotencyTtlMs (default 24h);
reusing a live key on a different verb throws. The caller owns key
uniqueness per logical request.
Only a commit records the key: a keyed call that no-ops (a setStage
already at its target, an abort of a terminal instance) leaves no ledger
row, so retrying it later re-evaluates fresh rather than replaying.
OptionalmodeHow to write: set replaces the value (reassign / reschedule), append
adds a row to an array field (a running log / todo list), unset clears it.
Default set.
Which declared-editable field to write. Omit scope to resolve lexically
— the nearest declaring scope wins (activity, then stage, then workflow);
an explicit activity pins the match to that activity's field when the
bare name is ambiguous.
OptionalvalueThe new value (for set) or row (for append), as plain JSON matching the
field's kind. Validated against the field kind in the op path; omit for
unset.
The OperationArgs of the verbs that own a discrete commit —
fireAction,editField,completeEffect,commitEffectOps,setStage,abortInstance.tickdeliberately takes the plain base: it owns no commit of its own and re-derives everything, so retrying it blind is already safe.