refactor: move mcp sdk protocols to wf_sources_mcp

src/wf_mcp/runtime/pool.py

@@ -6,9 +6,10 @@ from dataclasses import asdict, dataclass, field
 from inspect import isawaitable
 from typing import Any, cast
 
+from wf_sources_mcp.sdk import ToolCallResult
+
 from ..auth import AuthRecord
 from ..models import ConnectionConfig
-from ..sdk import ToolCallResult
 from .session import PersistentMcpSession
 
 SessionFactory = Callable[

src/wf_mcp/runtime/protocols.py

@@ -1,24 +1,12 @@
+"""Compatibility shim for MCP runtime execution protocol.
+
+Canonical implementation lives in `wf_sources_mcp.sdk`.
+"""
+
 from __future__ import annotations
 
-from typing import Any, Protocol
+from wf_sources_mcp.sdk import ToolExecutor
 
-from ..auth import AuthRecord
-from ..models import ConnectionConfig
-from ..sdk import ToolCallResult
-
-
-class ToolExecutor(Protocol):
-    """Runtime boundary for executing MCP tools from workflow nodes.
-
-    Discovery can stay one-shot, but workflow execution needs this smaller
-    protocol so a future persistent runtime pool can replace the current
-    adapter without changing generated NodeSpecs.
-    """
-
-    async def call_tool(
-        self,
-        connection: ConnectionConfig,
-        auth: AuthRecord | None,
-        tool_name: str,
-        payload: dict[str, Any],
-    ) -> ToolCallResult: ...
+__all__ = [
+    "ToolExecutor",
+]

src/wf_mcp/runtime/session.py

@@ -7,9 +7,10 @@ from typing import Any
 from mcp.client.session import ClientSession
 from mcp.types import CallToolResult
 
+from wf_sources_mcp.sdk import ToolCallResult
+
 from ..auth import AuthRecord
 from ..models import ConnectionConfig
-from ..sdk import ToolCallResult
 from ..sdk.converters import tool_result_to_call_result
 
 RawToolCaller = Callable[[str, dict[str, Any]], Awaitable[CallToolResult]]