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main() — mcp Function Reference

Architecture documentation for the main() function in index.ts from the mcp codebase.

Function typescript McpServer Transport calls 3

Entity Profile

Dependency Diagram

graph TD
  6f266567_35d5_7334_0233_87d521cf347b["main()"]
  a7551c40_ae18_02d5_7ca4_311e0ad1edb9["handlePrecache()"]
  6f266567_35d5_7334_0233_87d521cf347b -->|calls| a7551c40_ae18_02d5_7ca4_311e0ad1edb9
  69fc7a46_28f6_6b72_2725_66c381e53322["debug()"]
  6f266567_35d5_7334_0233_87d521cf347b -->|calls| 69fc7a46_28f6_6b72_2725_66c381e53322
  a9363f44_0cfc_87dc_a76a_4eeb9d75c684["start()"]
  6f266567_35d5_7334_0233_87d521cf347b -->|calls| a9363f44_0cfc_87dc_a76a_4eeb9d75c684
  style 6f266567_35d5_7334_0233_87d521cf347b fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/index.ts lines 14–50

async function main() {
  const args = process.argv.slice(2);

  // Handle precache subcommand
  if (args[0] === 'precache') {
    await handlePrecache(args.slice(1));
    return;
  }

  // Normal MCP server mode — parse flags
  let defaultWorkdir: string | undefined;
  let noApiFallback = !!process.env.SUPERMODEL_NO_API_FALLBACK;
  let precache = false;

  for (const arg of args) {
    if (arg === '--no-api-fallback') {
      noApiFallback = true;
    } else if (arg === '--precache') {
      precache = true;
    } else if (!arg.startsWith('--')) {
      defaultWorkdir = arg;
    }
  }

  if (defaultWorkdir) {
    logger.debug('Default workdir:', defaultWorkdir);
  }
  if (noApiFallback) {
    logger.debug('API fallback disabled (cache-only mode)');
  }
  if (precache) {
    logger.debug('Startup precaching enabled');
  }

  const server = new Server(defaultWorkdir, { noApiFallback, precache });
  await server.start();
}

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Frequently Asked Questions

What does main() do?
main() is a function in the mcp codebase.
What does main() call?
main() calls 3 function(s): debug, handlePrecache, start.

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