search_gpu

Instructions

Implementation Reference

• src/index.ts:432-535 (handler)

  The main handler function that implements the logic for the 'search_gpu' tool. It filters products in the GPU category based on chipset, memory (VRAM), sorts by price if specified, limits results, and returns JSON-formatted results.

  private searchGPU(args: any) {
    const { chipset, memory, sort_by, limit = 10 } = args;
    const results: any[] = [];
  
    // Find GPU category
    const gpuCategory = this.productData.find(cat => 
      cat.category_name.includes('顯示卡') || cat.category_name.includes('VGA')
    );
  
    if (!gpuCategory) {
      return {
        content: [
          {
            type: "text",
            text: JSON.stringify({
              error: "GPU category not found",
              results: []
            }, null, 2),
          },
        ],
      };
    }
  
    // Search through all GPU subcategories
    for (const subcat of gpuCategory.subcategories) {
      for (const product of subcat.products) {
        let matches = true;
  
        // Filter by chipset if specified
        if (chipset && matches) {
          const chipsetLower = chipset.toLowerCase();
          const subcatLower = subcat.name.toLowerCase();
          const specsText = product.specs.join(' ').toLowerCase();
          const modelLower = product.model?.toLowerCase() || '';
          const rawTextLower = product.raw_text.toLowerCase();
          
          if (!subcatLower.includes(chipsetLower) && 
              !specsText.includes(chipsetLower) && 
              !modelLower.includes(chipsetLower) &&
              !rawTextLower.includes(chipsetLower)) {
            matches = false;
          }
        }
  
        // Filter by memory if specified
        if (memory && matches) {
          const memPattern = new RegExp(`${memory}G(?:B)?`, 'i');
          const specsText = product.specs.join(' ');
          const hasMemory = memPattern.test(specsText) || 
                           memPattern.test(product.raw_text) ||
                           memPattern.test(product.model || '');
          
          if (!hasMemory) {
            matches = false;
          }
        }
  
        if (matches) {
          results.push({
            ...product,
            category_name: gpuCategory.category_name,
            subcategory_name: subcat.name,
          });
        }
      }
    }
  
    // Sort results
    if (sort_by === 'price_asc') {
      results.sort((a, b) => a.price - b.price);
    } else if (sort_by === 'price_desc') {
      results.sort((a, b) => b.price - a.price);
    }
  
    // Apply limit
    const limitedResults = results.slice(0, limit);
  
    return {
      content: [
        {
          type: "text",
          text: JSON.stringify({
            total_found: results.length,
            showing: limitedResults.length,
            filters: {
              chipset: chipset || "any",
              memory: memory || "any",
              sort_by: sort_by || "none"
            },
            results: limitedResults.map(p => ({
              brand: p.brand,
              model: p.model,
              specs: p.specs,
              price: p.price,
              original_price: p.original_price,
              discount_amount: p.discount_amount,
              subcategory: p.subcategory_name,
              markers: p.markers,
            })),
          }, null, 2),
        },
      ],
    };
  }

• src/index.ts:142-166 (schema)

  The input schema definition for the search_gpu tool, including parameters for chipset, memory, sorting, and limit, along with description.

    name: "search_gpu",
    description: "Specialized graphics card (VGA) search tool. Find GPUs by chipset model, VRAM capacity, and price. Perfect for gaming builds, content creation, or AI workloads.",
    inputSchema: {
      type: "object",
      properties: {
        chipset: {
          type: "string",
          description: "GPU chipset model. NVIDIA examples: 'RTX 4090', 'RTX 4070', 'RTX 4060', 'RTX 3060'. AMD examples: 'RX 7900', 'RX 7600'. Intel: 'Arc B580', 'Arc B570'",
        },
        memory: {
          type: "number",
          description: "Video memory (VRAM) capacity in GB. Common values: 8, 12, 16, 24. Example: 12 for 12GB VRAM cards suitable for 1440p gaming",
        },
        sort_by: {
          type: "string",
          enum: ["price_asc", "price_desc"],
          description: "Price sorting order. 'price_asc' = cheapest first (value gaming), 'price_desc' = most expensive first (premium performance)",
        },
        limit: {
          type: "number",
          description: "Maximum results to return. Valid range: 1-50, default: 10. Higher values show more brand/model variations",
        },
      },
    },
  },

• src/index.ts:309-310 (registration)

  The dispatch case in the CallToolRequestSchema handler that routes calls to the search_gpu tool to the searchGPU method.

  case "search_gpu":
    return this.searchGPU(args);