MCP (Model Context Protocol) for Scala 3

Usage

import io.circe.*
import mcp.schema.*

object StdioServer extends IOApp.Simple:
  
  case class Input(
    @Description("description for argument") argument: String
  ) derives JsonSchema, Decoder

  private val tool = ToolIO, Input :: Nil
      )
    )
  )

  override def run: IO[Unit] =
    McpServer
      .FastMcpIO
      .addTool(tool)
      .start("stdio")