What is the end-to-end workflow for building reusable MCP prompts?

Prompts define a set of user and assistant messages that clients can use. They should be high-quality, well-tested, and relevant to your MCP server's purpose. The workflow is as follows. First, you write and evaluate a prompt that is relevant to your server's functionality. Second, you define the prompt in your MCP server using the mcp prompt decorator. Third, clients can request that prompt at any time. Fourth, arguments provided by the client become keyword arguments in your prompt function. And fifth, the function returns formatted messages ready for the model. This system creates reusable, parameterized prompts that maintain consistency while still allowing customization through variables.