Adopt registry-backed item occurrences

assets/dnd/item-events/prompts/instructions.md

@@ -1,9 +1,10 @@
-Extract meaningful Dungeons & Dragons item and currency discoveries and changes
+Extract meaningful Dungeons & Dragons item and currency occurrences: discoveries and changes
 in party possession established by the transcript. This is an event history,
 not an inventory or ledger: do not calculate balances, resolve item identity
 across records, or infer ownership that the transcript does not establish.
 
-Record a stated quantity as an integer and leave it null when the transcript
+For every occurrence, copy the exact `item_id` and `name` pair from the supplied
+item registry. Record a stated quantity as an integer and leave it null when the transcript
 does not state one. Use a concise observed item name and preserve the stated
 currency denomination.
 

assets/dnd/item-events/prompts/item-registry.md

@@ -0,0 +1,6 @@
+Use the supplied item registry only to ground each occurrence. Every record
+must copy one registry item's exact `id` and exact `name`; do not invent,
+rename, merge, or infer registry items. The registry is not transcript
+evidence: cite only the current transcript chunk in `source_refs`.
+
+{{ input "item_registry" }}

assets/dnd/item-events/prompts/prompt.yaml

@@ -14,6 +14,9 @@ inputs:
   - name: glossary
     required: false
     content_type: text/plain
+  - name: item_registry
+    required: true
+    content_type: application/json
 messages:
   - role: system
     content_file: ./sharedassets/common-dnd-system.md
@@ -29,6 +32,8 @@ messages:
       type: ephemeral
   - role: user
     content_file: ./sharedassets/common-dnd-extraction-evidence.md
+  - role: user
+    content_file: ./item-registry.md
   - role: user
     content_file: ./instructions.md
     cache_control:
@@ -36,5 +41,5 @@ messages:
 output:
   format: json
   validation_mode: json_schema
-  schema_path: dnd_item_events_llm.v1.json
+  schema_path: dnd_item_occurrences_llm.v1.json
   repair_attempts: 0