diff --git a/src/neuro_api/command.py b/src/neuro_api/command.py
index 782a70d..104c049 100644
--- a/src/neuro_api/command.py
+++ b/src/neuro_api/command.py
@@ -156,7 +156,7 @@ def check_invalid_keys_recursive(
     for key, value in sub_schema.items():
         if key in INVALID_SCHEMA_KEYS:
             invalid_keys.append(key)
-        elif isinstance(value, (str, int, bool)):
+        elif isinstance(value, (str, int, bool, float)):
             pass
         elif isinstance(value, dict):
             # Probably not quite correct to cast to SchemaObject here,
diff --git a/tests/test_command.py b/tests/test_command.py
index cf8298d..5d157ab 100644
--- a/tests/test_command.py
+++ b/tests/test_command.py
@@ -341,6 +341,26 @@ def test_check_action_invalid_schema_key() -> None:
         check_action(action)
 
 
+def test_check_action_populous_schema() -> None:
+    action = Action(
+        name="valid_action",
+        description="A valid action",
+        schema={
+            "type": "object",
+            "properties": {
+                "value": {"type": "string", "enum": ["a", "b"]},
+                "count": {"type": "number", "minimum": 0.0, "maximum": 100.0},
+                "array": {
+                    "type": "array",
+                    "items": {"type": "boolean", "const": True},
+                    "maxItems": 100,
+                },
+            },
+        },
+    )
+    check_action(action)
+
+
 def test_check_typed_dict() -> None:
     data = {
         "id": "waffles",
@@ -417,12 +437,6 @@ class Data(TypedDict):
     assert check_typed_dict(data, Data) == data
 
 
-# ... (keep all existing tests) ...
-
-
-# NEW TESTS - Add these to improve coverage:
-
-
 def test_format_command_no_game() -> None:
     """Test format_command without game parameter."""
     command = "test_command"