Rename get_captions_for_chunk() to get_text_for_refs()

haiku_rag_slim/haiku/rag/client/search.py

@@ -139,7 +139,7 @@ async def _populate_image_data(client: "HaikuRAG", results: list[SearchResult])
         )
         if not bytes_by_ref:
             continue
-        captions_by_ref = await client.document_item_repository.get_captions_for_chunk(
+        captions_by_ref = await client.document_item_repository.get_text_for_refs(
             doc_id, list(bytes_by_ref.keys())
         )
         for r in doc_results:

haiku_rag_slim/haiku/rag/store/repositories/document_item.py

@@ -207,16 +207,17 @@ class DocumentItemRepository:
                 result[row["self_ref"]] = data
         return result
 
-    async def get_captions_for_chunk(
+    async def get_text_for_refs(
         self, document_id: str, refs: list[str]
     ) -> dict[str, str]:
-        """Fetch caption text for multiple self_refs within a single document.
+        """Fetch the ``text`` field for multiple self_refs within a single document.
 
-        Returns ``{self_ref: text}`` for refs that have non-empty text. Used
+        Returns ``{self_ref: text}`` for refs whose text is non-empty. Used
         alongside ``get_pictures_for_chunk`` to label figures in agent-facing
-        search results — the OpenAI vision message format has no identifier
-        field for binary parts, so the caption is the only signal a model can
-        use to correlate a description with the picture it sees.
+        search results: picture items carry their VLM-generated caption in
+        the ``text`` field, and the OpenAI vision message format has no
+        identifier on binary parts, so the caption text is the only signal a
+        model can use to correlate a description with the picture it sees.
         """
         if not refs:
             return {}

tests/store/test_document_items.py

@@ -502,13 +502,14 @@ class TestPictureDataStorage:
             # Empty refs returns empty dict
             assert await repo.get_pictures_for_chunk("doc-1", []) == {}
 
-    async def test_get_captions_for_chunk(self, temp_db_path):
-        """Captions are returned for refs whose text is non-empty.
+    async def test_get_text_for_refs(self, temp_db_path):
+        """Text is returned for any ref with non-empty ``text``, regardless of label.
 
         In practice pictures carry their caption in the ``text`` field
         (populated by the VLM picture-description pass during ingest); this
         method surfaces that text alongside the picture bytes so the model can
-        correlate a description with the binary it sees.
+        correlate a description with the binary it sees. The same method also
+        returns text for non-picture refs — callers filter by label.
         """
         async with HaikuRAG(temp_db_path, create=True) as rag:
             repo = DocumentItemRepository(rag.store)
@@ -541,7 +542,7 @@ class TestPictureDataStorage:
                 ],
             )
 
-            captions = await repo.get_captions_for_chunk(
+            captions = await repo.get_text_for_refs(
                 "doc-1",
                 ["#/pictures/0", "#/pictures/1", "#/texts/0", "#/pictures/999"],
             )
@@ -549,7 +550,7 @@ class TestPictureDataStorage:
                 "#/pictures/0": "Figure 1. CCS generation over time.",
                 "#/texts/0": "Inline prose.",
             }
-            assert await repo.get_captions_for_chunk("doc-1", []) == {}
+            assert await repo.get_text_for_refs("doc-1", []) == {}
 
     async def test_hot_paths_exclude_picture_data(self, temp_db_path):
         """Light read paths must NOT pull picture_data into memory."""