agentic-debugger

Instructions

Implementation Reference

• src/index.ts:252-273 (handler)

  The switch case handler for the 'list_instruments' tool. It fetches all active instruments using sessionManager.getInstruments() and formats them into a text list, returning it via the MCP response format or a 'No active instruments' message if empty.

  case 'list_instruments': {
    const instruments = sessionManager.getInstruments();
  
    if (instruments.length === 0) {
      return {
        content: [{ type: 'text', text: 'No active instruments.' }],
      };
    }
  
    const list = instruments
      .map((i) => `- ${i.id}: ${i.file}:${i.line} [${i.capture.join(', ') || 'no capture'}]`)
      .join('\n');
  
    return {
      content: [
        {
          type: 'text',
          text: `Active instruments (${instruments.length}):\n\n${list}`,
        },
      ],
    };
  }

• src/index.ts:93-100 (registration)

  Tool registration entry for 'list_instruments' in the ListToolsRequestHandler response, defining name, description, and empty input schema.

  {
    name: 'list_instruments',
    description: 'List all active debug instruments.',
    inputSchema: {
      type: 'object',
      properties: {},
    },
  },

• src/session.ts:85-90 (helper)

  SessionManager helper method that returns the array of all active Instrument objects stored in the session Map.

  getInstruments(): Instrument[] {
    if (!this.session) {
      return [];
    }
    return Array.from(this.session.instruments.values());
  }