Simple Tool
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Simple Tool (π solution)
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π¨βπΌ Great job! You've just enabled tool support in your MCP server and registered
your very first tool. This is a foundational stepβnow your server can expose
functionality to clients in a standardized, discoverable way.
With this in place, you're ready to build more dynamic and interactive tools.
Next, you'll learn how to accept input and return results based on user-provided
arguments.
MCP and RAG: As mentioned in the video, MCP tools have conceptual overlap
with RAG (Retrieval-Augmented Generation). RAG is a technique where an LLM
retrieves relevant information from external sources and uses that information
to augment its response generation. With MCP tools, the LLM similarly
retrieves data from your server through tool calls, then uses that data to
enhance its responsesβmaking MCP a form of RAG architecture.
Key learnings from this step:
- How to declare the
toolscapability on your MCP server - How to register a simple tool and return a structured response
- The basics of the MCP tool invocation flow
Onward to dynamic tools!