docs(mcp): clarify that both safelisted and arbitrary operations are supported

Author: asoorm

docs/router/mcp.mdx

@@ -6,7 +6,7 @@ icon: "robot"
 
 For a high-level introduction, see the [MCP Gateway overview](https://wundergraph.com/mcp-gateway).
 
-WunderGraph's MCP Gateway is a feature of the Cosmo Router that enables AI models to interact with your GraphQL APIs using a structured protocol. Instead of allowing arbitrary queries, it exposes a predefined set of validated GraphQL operations as tools that AI models can discover and use.
+WunderGraph's MCP Gateway is a feature of the Cosmo Router that enables AI models to interact with your GraphQL APIs using a structured protocol. We can expose a predefined set of safelisted operations, or capabilities as MCP tools, or allow agents to execute GraphQL directly.
 
 <Frame caption="Cosmo Router exposes your GraphQL Supergraph over MCP, enabling AI platforms like Cursor, Windsurf, and Claude to discover and execute operations.">
   <img