Facebook Insights Metrics v23

Instructions

Implementation Reference

• src/server.ts:77-84 (registration)

  Registration of the 'metrics.list' tool, including its name, description, and input schema (no required parameters).

  {
    name: 'metrics.list',
    description: 'Returns a list of all metrics with basic information',
    inputSchema: {
      type: 'object',
      properties: {},
    },
  },

• src/server.ts:136-154 (handler)

  Handler function for the 'metrics.list' tool. Fetches all metrics using getMetrics(), maps them to basic fields (name, level, periods, dataType, deprecated), and returns as formatted JSON text content.

  case 'metrics.list': {
    const metrics = this.getMetrics();
    const result = metrics.map(metric => ({
      name: metric.name,
      level: metric.level,
      periods: metric.periods,
      dataType: metric.dataType,
      deprecated: metric.deprecated || false
    }));
  
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify(result, null, 2)
        }
      ]
    };
  }

• src/loader.ts:76-79 (helper)

  Helper method in MetricsLoader that loads the metrics file (if not cached) and returns the array of all Metric objects.

  getAllMetrics(): Metric[] {
    const metrics = this.loadMetrics();
    return metrics.metrics;
  }

• src/server.ts:281-283 (helper)

  Server helper method that delegates to MetricsLoader.getAllMetrics() to retrieve all metrics.

  private getMetrics(): Metric[] {
    return this.metricsLoader.getAllMetrics();
  }