add tools api with a stub provider impl

llama_stack/providers/inline/tool_runtime/meta_reference/__init__.py

@@ -0,0 +1,14 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from .config import MetaReferenceToolRuntimeConfig
+from .meta_reference import MetaReferenceToolRuntimeImpl
+
+
+async def get_provider_impl(config: MetaReferenceToolRuntimeConfig, _deps):
+    impl = MetaReferenceToolRuntimeImpl(config)
+    await impl.initialize()
+    return impl

llama_stack/providers/inline/tool_runtime/meta_reference/config.py

@@ -0,0 +1,11 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from pydantic import BaseModel
+
+
+class MetaReferenceToolRuntimeConfig(BaseModel):
+    pass

llama_stack/providers/inline/tool_runtime/meta_reference/meta_reference.py

@@ -0,0 +1,30 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from typing import Any, Dict
+
+from llama_stack.apis.tools import InvokeToolResult, Tool, ToolRuntime
+from llama_stack.providers.datatypes import ToolsProtocolPrivate
+
+from .config import MetaReferenceToolRuntimeConfig
+
+
+class MetaReferenceToolRuntimeImpl(ToolsProtocolPrivate, ToolRuntime):
+    def __init__(self, config: MetaReferenceToolRuntimeConfig):
+        self.config = config
+
+    async def initialize(self):
+        pass
+
+    async def register_tool(self, tool: Tool):
+        print(f"registering tool {tool.identifier}")
+        pass
+
+    async def unregister_tool(self, tool_id: str) -> None:
+        pass
+
+    async def invoke_tool(self, tool_id: str, args: Dict[str, Any]) -> InvokeToolResult:
+        pass