Fix settings spread

Author: rholinshead

examples/mcp_agent_server/asyncio/README.md

@@ -99,8 +99,12 @@ You can also run the server and client separately:
    ```
 
 2. In another terminal, run the client:
+
    ```bash
    uv run client.py
+
+   # Optionally, run with the example custom FastMCP settings
+   uv run client.py --custom-fastmcp-settings
    ```
 
 ## MCP Clients

examples/mcp_agent_server/asyncio/basic_agent_server.py

@@ -173,7 +173,7 @@ async def main():
     parser = argparse.ArgumentParser()
     parser.add_argument(
         "--custom-fastmcp-settings",
-        type=bool,
+        action="store_true",
         help="Enable custom FastMCP settings for the server",
     )
     args = parser.parse_args()
@@ -195,11 +195,12 @@ async def main():
         # Create the MCP server that exposes both workflows and agent configurations,
         # optionally using custom FastMCP settings
         fast_mcp_settings = (
-            {"host": "localhost", "port": 8001, "debug": True, "log_level": "debug"}
+            {"host": "localhost", "port": 8001, "debug": True, "log_level": "DEBUG"}
             if use_custom_fastmcp_settings
             else None
         )
         mcp_server = create_mcp_server_for_app(agent_app, fast_mcp_settings)
+        logger.info(f"MCP Server settings: {mcp_server.settings}")
 
         # Add custom tool to get token usage for a workflow
         @mcp_server.tool(

examples/mcp_agent_server/asyncio/client.py

@@ -1,3 +1,4 @@
+import argparse
 import asyncio
 import json
 import time
@@ -11,6 +12,15 @@
 
 
 async def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--custom-fastmcp-settings",
+        action="store_true",
+        help="Enable custom FastMCP settings for the server",
+    )
+    args = parser.parse_args()
+    use_custom_fastmcp_settings = args.custom_fastmcp_settings
+
     # Create MCPApp to get the server registry
     app = MCPApp(name="workflow_mcp_client")
     async with app.run() as client_app:
@@ -21,11 +31,17 @@ async def main():
         logger.info("Connecting to workflow server...")
 
         # Override the server configuration to point to our local script
+        run_server_args = ["run", "basic_agent_server.py"]
+        if use_custom_fastmcp_settings:
+            logger.info("Using custom FastMCP settings for the server.")
+            run_server_args += ["--custom-fastmcp-settings"]
+        else:
+            logger.info("Using default FastMCP settings for the server.")
         context.server_registry.registry["basic_agent_server"] = MCPServerSettings(
             name="basic_agent_server",
             description="Local workflow server running the basic agent example",
             command="uv",
-            args=["run", "basic_agent_server.py"],
+            args=run_server_args,
         )
 
         # Connect to the workflow server

src/mcp_agent/server/app_server.py

@@ -122,7 +122,7 @@ async def app_specific_lifespan(mcp: FastMCP) -> AsyncIterator[ServerContext]:
         # or use the MCPApp's description if available.
         instructions=f"MCP server exposing {app.name} workflows and agents. Description: {app.description}",
         lifespan=app_specific_lifespan,
-        settings=settings,
+        **settings or {},
     )
 
     # region Workflow Tools