@mcpbr/core/dist/index.js

Core functions for mcpbr

// src/mcp-server.ts
import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { CallToolRequestSchema } from "@modelcontextprotocol/sdk/types.js";
import c from "tinyrainbow";
import { z } from "zod";
function mcpServerFactory(meta, params) {
  let server;
  function make(tools) {
    server = new Server(
      {
        name: meta.name,
        version: meta.version
      },
      {
        capabilities: {
          tools: {}
        }
      }
    );
    server.setRequestHandler(CallToolRequestSchema, async (request) => {
      try {
        const tool = tools.find((tool2) => tool2.definition.name === request.params.name);
        if (!tool) {
          throw new Error(`Unknown tool: ${request.params.name}`);
        }
        return tool.handler(params, request.params.arguments ?? {});
      } catch (error) {
        console.log(error);
        if (error instanceof z.ZodError) {
          throw new Error(`Invalid input: ${JSON.stringify(error.errors)}`);
        }
        return {
          content: [
            {
              type: "text",
              text: `Error: ${error instanceof Error ? error.message : String(error)}`
            }
          ],
          isError: true
        };
      }
    });
  }
  function start() {
    if (!server) {
      throw new Error("Server not initialized call make first");
    }
    async function runServer() {
      const transport = new StdioServerTransport();
      await server.connect(transport);
      console.error(c.green(`\u2705 ${meta.name} running on stdio`));
    }
    runServer().catch((error) => {
      console.error(c.red(`
\u{1F6A8}  Error initializing ${meta.name} MCP server:
`));
      console.error(c.yellow(`   ${error.message}
`));
    });
  }
  return { make, start };
}

// src/zod-schema.ts
import zodToJsonSchema from "zod-to-json-schema";
function toJsonSchema(schema) {
  return zodToJsonSchema(schema, { target: "jsonSchema7" });
}
export {
  mcpServerFactory,
  toJsonSchema
};
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