MCP Handler docs (cloudflare#26657)

Author: mattzcarey

src/content/docs/agents/model-context-protocol/index.mdx

@@ -29,6 +29,7 @@ The MCP standard supports two modes of operation:
 - **Local MCP connections**: MCP clients connect to MCP servers on the same machine, using [stdio](https://spec.modelcontextprotocol.io/specification/draft/basic/transports/#stdio) as a local transport method.
 
 ### Best Practices
+
 - **Tool design**: Do not treat your MCP server as a wrapper around your full API schema. Instead, build tools that are optimized for specific user goals and reliable outcomes. Fewer, well-designed tools often outperform many granular ones, especially for agents with small context windows or tight latency budgets.
 - **Scoped permissions**: Deploying several focused MCP servers, each with narrowly scoped permissions, reduces the risk of over-privileged access and makes it easier to manage and audit what each server is allowed to do.
 - **Tool descriptions**: Detailed parameter descriptions help agents understand how to use your tools correctly — including what values are expected, how they affect behavior, and any important constraints. This reduces errors and improves reliability.