[dragonwriter]

> There is a prompt that basically tells the LLM to use the generated manifest/configuration files.

No, there isn't. The model doesn't see any difference between MCP-supplied tools, tools built in to the toolchain, and tools supplied by any other method. The prompt simply provides tool names, arguments, and response types to the model. The toolchain, a conventional deterministic program, reads the model response, finds things that meet the models defined format for tool calls, parses out the call names and arguments, looks up in its own internal list of tools to find matching names and see if they are internal, MCP supplied, or other tools, and routes the calls appropriately, gathers responses, does any validation it is designed to do, then mals the validated results into where the model's prompt template specifies tool results should go, and calls the model again with an new message appended to the previous conversation context containing the tool results.