🎉 first commit

app/lib/.server/llm/tools/weather.ts

@@ -0,0 +1,43 @@
+/**
+ * 由于 agentic 暂时不支持 AI SDK v5，因此使用自定义的 Weather 工具。
+ * @see https://docs.agentic.so/marketplace/ts-sdks/ai-sdk
+ */
+import { tool } from 'ai';
+import { z } from 'zod';
+
+const API_BASE_URL = 'https://api.weatherapi.com/v1';
+
+const weatherParamsSchema = z.object({
+  q: z
+    .string()
+    .describe('位置查询，可以是城市名称、邮政编码、IP地址或经纬度坐标。必须使用英语或拼音。例如："London"、"Beijing"'),
+});
+
+export const weatherTool = tool({
+  description: '获取指定位置的天气信息',
+  inputSchema: weatherParamsSchema,
+  execute: async ({ q }) => {
+    const apiKey = process.env.WEATHER_API_KEY || '';
+    if (!apiKey) {
+      throw new Error('Missing WEATHER_API_KEY');
+    }
+
+    try {
+      const url = new URL(`${API_BASE_URL}/current.json`);
+      url.searchParams.append('key', apiKey);
+      url.searchParams.append('q', q);
+
+      const response = await fetch(url.toString());
+
+      if (!response.ok) {
+        throw new Error(`Weather API responded with status: ${response.status}`);
+      }
+
+      return await response.json();
+    } catch (error: unknown) {
+      console.error('Weather API error:', error);
+      const errorMessage = error instanceof Error ? error.message : '未知错误';
+      throw new Error(`获取天气信息失败: ${errorMessage}`);
+    }
+  },
+});