Ground item occurrences by canonical names

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

@@ -3,10 +3,10 @@ in party possession established by the transcript. This is an occurrence history
 not an inventory or ledger: do not calculate balances, resolve item identity
 across records, or infer ownership that the transcript does not establish.
 
-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.
+For every occurrence, use the supplied canonical item `name`. 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.
 
 Use `discovered` when the party learns of or encounters an item without
 establishing possession. Use `acquired` when the party or a party member gains

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

@@ -1,6 +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`.
+must use one registry item's canonical `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-occurrences/schemas/dnd_item_occurrences_llm.v1.json

@@ -10,9 +10,8 @@
       "items": {
         "type": "object",
         "additionalProperties": false,
-        "required": ["item_id", "name", "kind", "quantity", "from", "to", "source_refs"],
+        "required": ["name", "kind", "quantity", "from", "to", "source_refs"],
         "properties": {
-          "item_id": {"type": "string"},
           "name": {"type": "string"},
           "kind": {"type": "string"},
           "quantity": {"type": ["integer", "null"]},