Memory MCP Server

Instructions

Implementation Reference

• src/index.js:197-205 (registration)

  Registers the get_cache_stats tool with empty input schema, system scope, and a handler that delegates to queryCache.getStats() for retrieving query cache statistics.

  registerTool({
    name: 'get_cache_stats',
    description: '獲取查詢緩存統計信息',
    inputSchema: z.object({}),
    scope: 'system',
    async handler() {
      return queryCache.getStats();
    }
  }, 'system');

• src/utils/query-cache.js:97-109 (helper)

  The getStats() method of QueryCache class that returns detailed statistics including hits, misses, hit rate, current size, and maximum size.

  getStats() {
    const total = this.hits + this.misses;
    const hitRate = total > 0 ? (this.hits / total * 100).toFixed(2) : 0;
  
    return {
      hits: this.hits,
      misses: this.misses,
      total,
      hitRate: `${hitRate}%`,
      size: this.cache.size,
      maxSize: this.maxSize
    };
  }