Why would your client read MCP resources directly into prompts?

Resources in MCP allow your server to expose information that can be included directly in prompts, rather than requiring separate tool calls to access data. This creates a much more efficient way to provide context to AI models. Instead of asking Claude to call a tool to fetch a document and then waiting for that round trip, your application can pull the document content as a resource and put it straight into the prompt. The model sees the data immediately as part of its context, with no extra latency, and can start reasoning about it right away. That makes the user experience feel much faster and smoother.