The optional canonical NPC registry for this extraction is provided below as
durable JSON. Use it only to prefer exact canonical NPC names and recognize
their aliases when the transcript identifies a caster.

Registry entries are grounding material, not evidence that a spell was cast.
Do not extract a spell, caster, effect, or source reference from the registry.
NPC source references describe registry provenance and may belong to another
session; they are never spell evidence. Preserve the existing player and party
policy for identifying PCs from the transcript.

{{ input "npcs" }}