fix(assets): inject only id in executed WS message per Asset Identity RFC

Per the Asset Identity RFC, the executed WebSocket payload should carry
id alone — hash is already encoded in the filename, and name/preview_url/
size belong behind GET /api/assets/{id} rather than being pushed eagerly.

Simplifies the DB lookup path: we only need ref.id, so the asset.hash
null-check is no longer required as a fallback trigger.

comfy_execution/asset_enrichment.py

@@ -1,14 +1,20 @@
-"""Enrich executed-node output entries with asset metadata."""
+"""Enrich executed-node output entries with asset id."""
 import logging
 import os
 
 
 def enrich_output_with_assets(output_ui: dict) -> dict:
-    """Inject asset metadata into file-type output entries when --enable-assets is set.
+    """Inject asset id into file-type output entries when --enable-assets is set.
+
+    Only ``id`` is added — per the Asset Identity RFC the WebSocket payload
+    carries just enough for the client to fetch the full asset via
+    GET /api/assets/{id}.  hash, name, preview_url, and size are intentionally
+    omitted: hash is already encoded in the filename; the rest require an
+    explicit API call.
 
     Returns a new dict; entries without a resolvable on-disk file path are left
-    unchanged. Errors are caught per-entry so a failure never blocks the WS message
-    from sending.
+    unchanged. Errors are caught per-entry so a failure never blocks the WS
+    message from sending.
     """
     from comfy.cli_args import args
     if not args.enable_assets:
@@ -40,36 +46,26 @@ def enrich_output_with_assets(output_ui: dict) -> dict:
                     continue
 
                 # Try DB lookup first (cached node re-send); fall back to registering inline.
-                ref = asset = None
+                asset_id = None
                 with create_session() as session:
                     db_ref = get_reference_by_file_path(session, abs_path)
-                    if db_ref is not None and db_ref.asset is not None and db_ref.asset.hash is not None:
-                        ref = db_ref
-                        asset = db_ref.asset
+                    if db_ref is not None:
+                        asset_id = db_ref.id
 
-                if ref is None:
+                if asset_id is None:
                     result = register_file_in_place(
                         abs_path=abs_path,
                         name=entry["filename"],
                         tags=[entry["type"]],
                     )
-                    entry = dict(entry)
-                    entry["id"] = result.ref.id
-                    entry["name"] = result.ref.name
-                    entry["asset_hash"] = result.asset.hash
-                    entry["size"] = result.asset.size_bytes
-                    entry["mime_type"] = result.asset.mime_type
-                else:
-                    entry = dict(entry)
-                    entry["id"] = ref.id
-                    entry["name"] = ref.name
-                    entry["asset_hash"] = asset.hash
-                    entry["size"] = asset.size_bytes
-                    entry["mime_type"] = asset.mime_type
+                    asset_id = result.ref.id
+
+                entry = dict(entry)
+                entry["id"] = asset_id
             except DependencyMissingError:
                 logging.warning("Asset enrichment skipped (blake3 not available): %s", entry.get("filename"))
             except Exception:
-                logging.warning("Failed to enrich output entry with asset metadata: %s", entry.get("filename"), exc_info=True)
+                logging.warning("Failed to enrich output entry with asset id: %s", entry.get("filename"), exc_info=True)
             new_entries.append(entry)
         enriched[key] = new_entries
     return enriched

tests-unit/execution_test/test_enrich_output.py

@@ -11,23 +11,15 @@ def _make_args(enable_assets: bool):
     return a
 
 
-def _make_db_ref(ref_id="ref-id-1", name="a.png", asset_hash="blake3:abc123", size=1024, mime="image/png"):
+def _make_db_ref(ref_id="ref-id-1"):
     ref = MagicMock()
     ref.id = ref_id
-    ref.name = name
-    ref.asset.hash = asset_hash
-    ref.asset.size_bytes = size
-    ref.asset.mime_type = mime
     return ref
 
 
-def _make_register_result(ref_id="ref-id-2", name="b.png", asset_hash="blake3:def456", size=2048, mime="image/png"):
+def _make_register_result(ref_id="ref-id-2"):
     result = MagicMock()
     result.ref.id = ref_id
-    result.ref.name = name
-    result.asset.hash = asset_hash
-    result.asset.size_bytes = size
-    result.asset.mime_type = mime
     return result
 
 
@@ -44,7 +36,7 @@ def _call(output_ui, *, enable_assets=True, file_exists=True, db_ref=None, regis
             DependencyMissingError=type("DependencyMissingError", (Exception,), {}),
         ),
         "app.assets.database.queries.asset_reference": MagicMock(
-            get_reference_by_file_path=MagicMock(return_value=db_ref or _make_db_ref()),
+            get_reference_by_file_path=MagicMock(return_value=db_ref),
         ),
         "app.database.db": MagicMock(create_session=MagicMock(return_value=fake_session_cm)),
     }
@@ -91,24 +83,26 @@ class TestEnrichOutputWithAssets(unittest.TestCase):
         result = _call(output, directory=None)
         self.assertNotIn("id", result["images"][0])
 
-    def test_db_hit_injects_from_db(self):
-        db_ref = _make_db_ref(ref_id="db-ref", name="from-db.png", asset_hash="blake3:fromdb", size=512)
+    def test_db_hit_injects_id(self):
+        db_ref = _make_db_ref(ref_id="db-ref")
         output = {"images": [{"filename": "a.png", "subfolder": "", "type": "output"}]}
         result = _call(output, db_ref=db_ref)
         img = result["images"][0]
         self.assertEqual(img["id"], "db-ref")
-        self.assertEqual(img["asset_hash"], "blake3:fromdb")
-        self.assertEqual(img["size"], 512)
+        # Only id is injected — no asset_hash, name, preview_url, size
+        self.assertNotIn("asset_hash", img)
+        self.assertNotIn("name", img)
+        self.assertNotIn("preview_url", img)
+        self.assertNotIn("size", img)
 
     def test_db_miss_falls_back_to_register(self):
-        no_hash_ref = _make_db_ref(asset_hash=None)
-        reg = _make_register_result(ref_id="inline-ref", asset_hash="blake3:inline", size=999)
+        reg = _make_register_result(ref_id="inline-ref")
         output = {"images": [{"filename": "new.png", "subfolder": "", "type": "output"}]}
-        result = _call(output, db_ref=no_hash_ref, register_result=reg)
+        result = _call(output, db_ref=None, register_result=reg)
         img = result["images"][0]
         self.assertEqual(img["id"], "inline-ref")
-        self.assertEqual(img["asset_hash"], "blake3:inline")
-        self.assertEqual(img["size"], 999)
+        self.assertNotIn("asset_hash", img)
+        self.assertNotIn("name", img)
 
     def test_original_entry_not_mutated(self):
         orig = {"filename": "a.png", "subfolder": "", "type": "output"}
@@ -118,8 +112,7 @@ class TestEnrichOutputWithAssets(unittest.TestCase):
 
     def test_enrichment_error_does_not_block_sibling_entries(self):
         call_count = [0]
-        good_reg = _make_register_result(ref_id="good-ref", asset_hash="blake3:good")
-        no_hash_ref = _make_db_ref(asset_hash=None)
+        good_reg = _make_register_result(ref_id="good-ref")
 
         def register_side_effect(abs_path, name, tags):
             call_count[0] += 1
@@ -139,7 +132,7 @@ class TestEnrichOutputWithAssets(unittest.TestCase):
                 DependencyMissingError=type("DependencyMissingError", (Exception,), {}),
             ),
             "app.assets.database.queries.asset_reference": MagicMock(
-                get_reference_by_file_path=MagicMock(return_value=no_hash_ref),
+                get_reference_by_file_path=MagicMock(return_value=None),
             ),
             "app.database.db": MagicMock(create_session=MagicMock(return_value=fake_session_cm)),
         }