OptionaldefinitionAbsent only when the definition predates content fingerprinting.
The effect's author-chosen name — one of the payload policy's two deliberate customer-string exceptions (module doc); unique per definition.
The instance document _id — the per-instance join key (engine-minted
<tag>.wf-instance.<random>; caller-supplied ids ride verbatim). One of
the payload policy's two deliberate customer-string exceptions — see the
module doc.
Which declaration boundary queued the effect.
The recorded outcome of the effect — cancelled when an abort
discarded it rather than a completer reporting.
Auto-transitions fired during the post-completion cascade — always 0 for a cancellation (the instance is terminal).