merge: track-e group C

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd

tests/test_tool_registry.py

@@ -523,8 +523,13 @@ async def test_tool_group_sizes_are_unchanged():
     `drawing_apply_standard` (ISO or ANSI styles, units and layers in one
     call) joined; the `style` tag sits ahead of `layer` and `drawing` in
     `_GROUP_TAG_PRIORITY` so they never file under their secondary
-    `query` / `create` / `modify` / `drawing` tags. Every other number here has been
-    unchanged since the snapshot was taken.
+    `query` / `create` / `modify` / `drawing` tags. `system`
+    moved 7 -> 8 when v1.6's `system_variable_describe` (the sysvar catalogue
+    as a read-only tool) opened SECTION 20. `drawing` moved 11 -> 13 when
+    v1.6's `drawing_properties_get` / `drawing_properties_set` (DWGPROPS on
+    both engines) joined SECTION 20 — tagged `drawing` and `settings`, and
+    `settings` is not a group tag, so they file under drawing. Every other
+    number here has been unchanged since the snapshot was taken.
     """
     sizes = {label: len(names) for label, names in (await server._tool_groups()).items()}
     assert sizes == {
@@ -533,7 +538,7 @@ async def test_tool_group_sizes_are_unchanged():
         "blocks": 9,
         "corner_ops": 4,
         "dimensions": 5,
-        "drawing": 11,
+        "drawing": 13,
         "engineering": 10,
         "entity_creation": 18,
         "entity_modification": 16,
@@ -544,10 +549,10 @@ async def test_tool_group_sizes_are_unchanged():
         "premium": 12,
         "solids": 5,
         "styles": 10,
-        "system": 7,
+        "system": 8,
         "templates": 2,
         "transactions": 3,
         "validation": 1,
         "view": 4,
     }
-    assert sum(sizes.values()) == 176
+    assert sum(sizes.values()) == 179