diff --git a/python/packages/core/agent_framework/_harness/_file_memory.py b/python/packages/core/agent_framework/_harness/_file_memory.py
index 7b021f4422..f33cc8ec08 100644
--- a/python/packages/core/agent_framework/_harness/_file_memory.py
+++ b/python/packages/core/agent_framework/_harness/_file_memory.py
@@ -40,7 +40,6 @@
 
 from pydantic import BaseModel, Field
 
-from .._feature_stage import ExperimentalFeature, experimental
 from .._sessions import AgentSession, ContextProvider, SessionContext
 from .._tools import tool
 from .._types import Message
@@ -218,7 +217,6 @@ class _SearchFilesInput(BaseModel):
     ] = None
 
 
-@experimental(feature_id=ExperimentalFeature.HARNESS)
 class FileMemoryProvider(ContextProvider):
     """Context provider that gives an agent session-scoped, file-based memory.
 
diff --git a/python/packages/core/tests/core/test_harness_file_memory.py b/python/packages/core/tests/core/test_harness_file_memory.py
index 7acf4fe822..cc39850a6e 100644
--- a/python/packages/core/tests/core/test_harness_file_memory.py
+++ b/python/packages/core/tests/core/test_harness_file_memory.py
@@ -288,9 +288,10 @@ async def test_provider_accepts_custom_instructions() -> None:
     assert all(DEFAULT_FILE_MEMORY_INSTRUCTIONS not in chunk for chunk in context.instructions)
 
 
-def test_file_memory_provider_is_experimental() -> None:
-    """The provider should be marked experimental under the harness feature."""
-    assert getattr(FileMemoryProvider, "__feature_stage__", None) == "experimental"
+def test_file_memory_provider_is_not_experimental() -> None:
+    """The provider is graduated and should no longer carry experimental metadata."""
+    assert getattr(FileMemoryProvider, "__feature_stage__", None) is None
+    assert getattr(FileMemoryProvider, "__feature_id__", None) is None
 
 
 async def test_tools_reject_nested_paths() -> None: