MCP: Provide uvx example for mcp-alchemy example

Author: amotl

framework/mcp/example_mcp_alchemy.py

@@ -13,12 +13,21 @@
 
 async def run():
     # Create server parameters for stdio connection.
+
+    # Incantation assuming software is installed.
     server_params = StdioServerParameters(
         command=where.first("mcp-alchemy"),
         args=[],
         env={"DB_URL": "crate://crate@localhost:4200/?schema=testdrive"},
     )
 
+    # Incantation using `uvx`.
+    server_params_uvx = StdioServerParameters(
+        command="uvx",
+        args=["--with", "sqlalchemy-cratedb>=0.42.0.dev2", "mcp-alchemy"],
+        env={"DB_URL": "crate://crate@localhost:4200/?schema=testdrive"},
+    )
+
     async with stdio_client(server_params) as (read, write):
         async with ClientSession(
             read, write