constructor() — mcp Function Reference

Architecture documentation for the constructor() function in server.ts from the mcp codebase.

Function typescript McpServer RequestHandler calls 4

Entity Profile

McpServer→ RequestHandler→ constructor() — mcp Function Reference

Dependency Diagram

graph TD
  65787d30_1025_d531_cde5_ded3572607bd["constructor()"]
  50dc88e1_e79b_8a97_364b_4502057dd58f["Server"]
  65787d30_1025_d531_cde5_ded3572607bd -->|defined in| 50dc88e1_e79b_8a97_364b_4502057dd58f
  6471f5ca_fcb9_6e5d_af84_17b245dc7c0f["setupHandlers()"]
  65787d30_1025_d531_cde5_ded3572607bd -->|calls| 6471f5ca_fcb9_6e5d_af84_17b245dc7c0f
  6b8403ed_3225_353c_2302_260d0a18d1db["constructor()"]
  65787d30_1025_d531_cde5_ded3572607bd -->|calls| 6b8403ed_3225_353c_2302_260d0a18d1db
  9d72a623_8b26_a485_5797_5f53c18e4294["start()"]
  65787d30_1025_d531_cde5_ded3572607bd -->|calls| 9d72a623_8b26_a485_5797_5f53c18e4294
  33bb86df_1268_373b_a74a_77412144612c["debug()"]
  65787d30_1025_d531_cde5_ded3572607bd -->|calls| 33bb86df_1268_373b_a74a_77412144612c
  style 65787d30_1025_d531_cde5_ded3572607bd fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/server.ts lines 52–104

  constructor(defaultWorkdir?: string, options?: ServerOptions) {
    this.defaultWorkdir = defaultWorkdir;
    this.options = options;
    // Note: noApiFallback is deferred to start() so startup precaching can use the API
    this.server = new McpServer(
      {
        name: 'supermodel_api',
        version: '0.0.1',
      },
      {
        capabilities: { tools: {}, logging: {} },
        instructions: `# Supermodel: Codebase Intelligence

Two tools for instant codebase understanding. Pre-computed graphs enable sub-second responses.

## Recommended workflow
1. \`overview\` first to learn architecture and key symbols (1 call)
2. \`symbol_context\` on 1-2 symbols from the issue to see source, callers, callees (1-2 calls)
3. Stop calling MCP tools. Use the results to make your fix.

## Anti-patterns
- >3 MCP calls total = diminishing returns. Aim for 1 overview + 1-2 symbol lookups.
- Chasing callers-of-callers burns iterations without helping.

## After fixing
Run the project's existing test suite (e.g. pytest). Do NOT write standalone test scripts.

## Tool reference
- \`overview\`: Architecture map, domains, hub functions, file counts. Zero-arg, sub-second.
- \`symbol_context\`: Source, callers, callees, domain for any function/class/method. Supports "Class.method" and partial matching.`,
      },
    );

    const config = new Configuration({
      basePath: process.env.SUPERMODEL_BASE_URL || 'https://api.supermodeltools.com',
      apiKey: process.env.SUPERMODEL_API_KEY,
      fetchApi: fetchWithTimeout,
    });

    logger.debug('Server configuration:');
    logger.debug('Base URL:', config.basePath);
    logger.debug('API Key set:', !!process.env.SUPERMODEL_API_KEY);
    if (this.defaultWorkdir) {
      logger.debug('Default workdir:', this.defaultWorkdir);
    }

    const api = new DefaultApi(config);
    this.client = {
      graphs: new SupermodelClient(api),
    };

    this.setupHandlers();
  }