Hardened D&D spell extraction prompts

internal/modules/dnd/extract/spells/assets/prompts/task.md

@@ -4,6 +4,13 @@ Extract only spell casts that are supported by the transcript. Do not infer
 spells from general D&D knowledge or from table chatter that does not identify a
 spell being cast.
 
+Describe the session as it was played and adjudicated. The transcript is
+authoritative for what happened in this session, even when a table ruling may
+differ from published D&D rules. Do not correct the transcript or fill in
+unstated mechanics from general D&D knowledge. When a ruling or mechanical
+explanation matters, attribute it to the GM or table instead of presenting it
+as a universal game rule.
+
 Use the provided canonical spell-name catalog when naming each extracted spell.
 Return the canonical catalog spelling exactly. The catalog is a recognition
-aid; it does not establish that a spell was cast.
+aid; it does not establish that a spell was cast or how the spell works.