refactor: clean up unnecessary changes in tests and examples

- Replace unused request parameters with _ in handler functions
- Remove explicit URI additions where auto-generation suffices
- Remove unused TOOL_SCHEME and other imports
- Keep only changes essential for prefix filtering functionality

This reduces noise in tests and examples while maintaining the core
functionality of URI-based storage and prefix filtering.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Tapan Chugh

examples/servers/simple-prompt/mcp_simple_prompt/server.py

@@ -49,7 +49,7 @@ def main(port: int, transport: str) -> int:
     app = Server("mcp-simple-prompt")
 
     @app.list_prompts()
-    async def list_prompts(request: types.ListPromptsRequest) -> list[types.Prompt]:
+    async def list_prompts(_) -> list[types.Prompt]:
         return [
             types.Prompt(
                 name="simple",

examples/servers/simple-resource/mcp_simple_resource/server.py

@@ -32,9 +32,7 @@ def main(port: int, transport: str) -> int:
     app = Server("mcp-simple-resource")
 
     @app.list_resources()
-    async def list_resources(
-        request: types.ListResourcesRequest,
-    ) -> list[types.Resource]:
+    async def list_resources(_) -> list[types.Resource]:
         return [
             types.Resource(
                 uri=FileUrl(f"file:///{name}.txt"),

examples/servers/simple-streamablehttp-stateless/mcp_simple_streamablehttp_stateless/server.py

@@ -69,7 +69,7 @@ async def call_tool(name: str, arguments: dict) -> list[types.ContentBlock]:
         ]
 
     @app.list_tools()
-    async def list_tools(request: types.ListToolsRequest) -> list[types.Tool]:
+    async def list_tools(_) -> list[types.Tool]:
         return [
             types.Tool(
                 name="start-notification-stream",

examples/servers/simple-streamablehttp/mcp_simple_streamablehttp/server.py

@@ -87,7 +87,7 @@ async def call_tool(name: str, arguments: dict) -> list[types.ContentBlock]:
         ]
 
     @app.list_tools()
-    async def list_tools(request: types.ListToolsRequest) -> list[types.Tool]:
+    async def list_tools(_) -> list[types.Tool]:
         return [
             types.Tool(
                 name="start-notification-stream",

examples/servers/simple-tool/mcp_simple_tool/server.py

@@ -37,7 +37,7 @@ async def fetch_tool(name: str, arguments: dict) -> list[types.ContentBlock]:
         return await fetch_website(arguments["url"])
 
     @app.list_tools()
-    async def list_tools(request: types.ListToolsRequest) -> list[types.Tool]:
+    async def list_tools(_) -> list[types.Tool]:
         return [
             types.Tool(
                 name="fetch",

examples/servers/structured_output_lowlevel.py

@@ -21,7 +21,7 @@
 
 
 @server.list_tools()
-async def list_tools(request: types.ListToolsRequest) -> list[types.Tool]:
+async def list_tools(_) -> list[types.Tool]:
     """List available tools with their schemas."""
     return [
         types.Tool(

examples/snippets/servers/lowlevel/basic.py

@@ -15,7 +15,7 @@
 
 
 @server.list_prompts()
-async def handle_list_prompts(request: types.ListPromptsRequest) -> list[types.Prompt]:
+async def handle_list_prompts(_) -> list[types.Prompt]:
     """List available prompts."""
     return [
         types.Prompt(

examples/snippets/servers/lowlevel/lifespan.py

@@ -49,7 +49,7 @@ async def server_lifespan(_server: Server) -> AsyncIterator[dict]:
 
 
 @server.list_tools()
-async def handle_list_tools(request: types.ListToolsRequest) -> list[types.Tool]:
+async def handle_list_tools(_) -> list[types.Tool]:
     """List available tools."""
     return [
         types.Tool(

examples/snippets/servers/lowlevel/structured_output.py

@@ -15,7 +15,7 @@
 
 
 @server.list_tools()
-async def list_tools(request: types.ListToolsRequest) -> list[types.Tool]:
+async def list_tools(_) -> list[types.Tool]:
     """List available tools with structured output schemas."""
     return [
         types.Tool(

tests/client/test_output_schema_validation.py

@@ -8,7 +8,7 @@
 from mcp.shared.memory import (
     create_connected_server_and_client_session as client_session,
 )
-from mcp.types import TOOL_SCHEME, Tool
+from mcp.types import Tool
 
 
 @contextmanager
@@ -42,10 +42,9 @@ async def test_tool_structured_output_client_side_validation_basemodel(self):
         }
 
         @server.list_tools()
-        async def list_tools(request):
+        async def list_tools(_):
             return [
                 Tool(
-                    uri=f"{TOOL_SCHEME}/get_user",
                     name="get_user",
                     description="Get user data",
                     inputSchema={"type": "object"},
@@ -82,10 +81,9 @@ async def test_tool_structured_output_client_side_validation_primitive(self):
         }
 
         @server.list_tools()
-        async def list_tools(request):
+        async def list_tools(_):
             return [
                 Tool(
-                    uri=f"{TOOL_SCHEME}/calculate",
                     name="calculate",
                     description="Calculate something",
                     inputSchema={"type": "object"},
@@ -114,10 +112,9 @@ async def test_tool_structured_output_client_side_validation_dict_typed(self):
         output_schema = {"type": "object", "additionalProperties": {"type": "integer"}, "title": "get_scores_Output"}
 
         @server.list_tools()
-        async def list_tools(request):
+        async def list_tools(_):
             return [
                 Tool(
-                    uri=f"{TOOL_SCHEME}/get_scores",
                     name="get_scores",
                     description="Get scores",
                     inputSchema={"type": "object"},
@@ -150,10 +147,9 @@ async def test_tool_structured_output_client_side_validation_missing_required(se
         }
 
         @server.list_tools()
-        async def list_tools(request):
+        async def list_tools(_):
             return [
                 Tool(
-                    uri=f"{TOOL_SCHEME}/get_person",
                     name="get_person",
                     description="Get person data",
                     inputSchema={"type": "object"},
@@ -179,7 +175,7 @@ async def test_tool_not_listed_warning(self, caplog):
         server = Server("test-server")
 
         @server.list_tools()
-        async def list_tools(request):
+        async def list_tools(_):
             # Return empty list - tool is not listed
             return []