Ground spell extraction with the effective catalog

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

@@ -5,8 +5,12 @@ source_id automatically.
 Return only D&D spell-cast artifacts. For each spell cast, identify the in-world
 caster, spell name, effect, narrative description, and source references.
 
-Use player, party, and glossary reference material only to clarify source text.
-Do not return spells, casters, or effects that are mentioned only in reference
-material.
+Use the canonical spell-name catalog to select spell names. Do not return a
+spell name absent from that catalog, even when it is suggested by general D&D
+knowledge or reference material.
+
+Use player, party, and glossary reference material only to clarify source text;
+references are not source evidence for a spell cast. Do not return spells,
+casters, or effects that are mentioned only in reference material.
 
 Return exactly one JSON object and no explanatory text.