diff --git a/src/neuro_api/command.py b/src/neuro_api/command.py
index 8a39874..ee917eb 100644
--- a/src/neuro_api/command.py
+++ b/src/neuro_api/command.py
@@ -39,6 +39,7 @@
     cast,
     get_type_hints,
 )
+from warnings import warn
 
 import orjson
 from typing_extensions import NotRequired, is_typeddict
@@ -892,6 +893,7 @@ def check_action(action: Action) -> None:
     if action.schema is not None:
         bad_schema_keys = check_invalid_keys_recursive(action.schema)
         if bad_schema_keys:
-            raise ValueError(
-                f"Following invalid keys found in schema: {bad_schema_keys} ({action.name = })",
+            warn(
+                f"Discouraged keys found in schema: {bad_schema_keys} ({action.name = })\nPlease make sure you accurately check for them in your integration.",
+                stacklevel=2,
             )
diff --git a/tests/test_command.py b/tests/test_command.py
index dbd4586..cf8298d 100644
--- a/tests/test_command.py
+++ b/tests/test_command.py
@@ -334,9 +334,9 @@ def test_check_action_invalid_schema_key() -> None:
         description="A valid action",
         schema={"$schema": {}},  # type: ignore[arg-type]
     )
-    with pytest.raises(
-        ValueError,
-        match="Following invalid keys found in schema",
+    with pytest.warns(
+        UserWarning,
+        match="Discouraged keys found in schema",
     ):
         check_action(action)