# Trajectory: 帮家里人看天气（个人化别名 + 真实气象 API）
真实 E2E 会话记录（`dsh web` RPC 驱动，DeepSeek-V4-Flash，未经剪辑；从 session.history 事件流提取）。
**用户输入：**
> 我妈这周六要去杭州玩，那边天气怎么样？要不要带伞？对了我经常要帮家里人看各个城市的天气，爸妈在成都，妹妹在深圳，你最好想个办法让我以后问起来方便点
### step 1 · 🔧 `bash` {"command": "date '+%Y-%m-%d %A'", "description": "Show current date and weekday"}
```
2026-08-06 Thursday
```
### step 1 · 🔧 `bash` {"command": "curl -s --max-time 15 'https://geocoding-api.open-meteo.com/v1/search?name=%E6%9D%AD%E5%B7%9E&count=1&language=zh&format=json' | head -c 600; echo; curl -s --max-time 15 'https://api.open-meteo.com/v1/forecast?latitude=30.2741&longitude=120.1551&daily=weather_code,temperature_2m_max,temperature_2m_min,precipitation_probability_max,precipitation_sum&timezone=Asia%2FShanghai&forecast_da…
```
{"results":[{"id":1808926,"name":"杭州","latitude":30.29365,"longitude":120.16142,"elevation":12.0,"feature_code":"PPLA","country_code":"CN","admin1_id":1784764,"admin2_id":1808925,"timezone":"Asia/Shanghai","population":9236032,"country_id":1814991,"country":"中国","admin1":"浙江","admin2":"杭州市"}],"generationtime_ms":0.12540817}
{"latitude":30.263618,"longitude":120.14051,"generationtime_ms":46.59557342529297,"utc_offset_seconds":28800,"timezone":"Asia/Shanghai","timezone_abbreviation":"GMT+8","elevation":13.0,"daily_units":{"time":"iso8601","weather_code":"wmo code","temperature_2m_max":"°C","temperature_2m_min":"°C","precipitation_probability_max":"%","precipitation_sum":"mm"},"daily":{"time":[…
```
### step 1 · 🔧 `web_search` {"query": "杭州天气预报 本周六 周末 降雨"}
```
Sources:
- [杭州市西湖区天气预报_查询](https://m.moji.com/param?from=moji&internal_id=5273)
- [杭州市西湖区天气预报_杭州市西湖区天气查询](https://m.moji.com/weather/china/zhejiang/xihu-district)
- [【杭州市天气预报15天】_杭州市天气预报15天查询 - 预报查询](https://tianqi.moji.com/forecast15/china/zhejiang/hangzhou)
- [杭州天气预报,杭州7天天气预报,杭州15天天气预报,杭州天气查询](https://www.weather.com.cn/weather/101210101.shtml)
- [杭州市天气预报_查询](http://m.moji.com/param?from=singlemessage&internal_id=143&isappinstalled=0)
- [杭州市 天气](https://forecast7.com/zh/30d27120d16/hangzhou/?unit=us)
- [“白海豚”重回超强台风级 将缓解杭州持续高温](https://www.hangzhou.gov.cn/col/col812267/art/2026/art_c5558f9a6490442f8a1a0749cc80fc98.html)
- [【杭州市天气预报一周】_杭州市天气预报一周查询_一周天气](https://tianqi.moji.com/forecast7/chin…
```
今天是周四（2026-08-06），这周六就是 **8月8日**。我先把查天气的工具建好（以后你说"成都""妹妹那边"就能直接查），同时确认一下杭州的情况。
### step 2 · 🔧 `evolve_add` {"name": "weather-check", "description": "查任意城市天气（当前+未来1-7天，含降水概率与带伞建议），支持中文城市名和家庭成员别名（爸妈→成都、妹妹→深圳），满足\"帮家里人看天气\"的反复需求。"}
模型现场编写的插件源码（source 参数）
```js
import { defineTool } from '@deepseek-ai/dsh-tools'
export const name = 'weather-check'
export const inject = ['tools']
const WMO = {
0: '晴', 1: '基本晴朗', 2: '多云', 3: '阴',
45: '雾', 48: '雾凇',
51: '毛毛雨', 53: '毛毛雨', 55: '毛毛雨',
56: '冻毛毛雨', 57: '冻毛毛雨',
61: '小雨', 63: '中雨', 65: '大雨',
66: '冻雨', 67: '冻雨',
71: '小雪', 73: '中雪', 75: '大雪', 77: '雪粒',
80: '阵雨', 81: '强阵雨', 82: '暴雨',
85: '阵雪', 86: '强阵雪',
95: '雷阵雨', 96: '雷阵雨伴冰雹', 99: '强雷暴伴冰雹',
}
const WEEK = ['周日', '周一', '周二', '周三', '周四', '周五', '周六']
// 家人常驻城市：爸妈在成都，妹妹在深圳（妈妈周末去杭州旅游时直接说"杭州"即可）
const FAMILY = {
'妈妈': '成都', '老妈': '成都', '我妈': '成都', '母亲': '成都',
'爸爸': '成都', '老爸': '成都', '我爸': '成都', '父亲': '成都', '爸妈': '成都',
'妹妹': '深圳', '小妹': '深圳', '妹': '深圳',
}
function umbrella(prob, sum) {
if (prob >= 90 || sum >= 20) return '必带伞（雷雨/暴雨风险高）'
if (prob >= 60 || sum >= 3) return '建议带伞'
if (prob >= 30) return '可备一把伞'
return '基本不用带伞'
}
export function apply(ctx) {
ctx.tools.register(defineTool({
name: 'weather_city',
description: '查任意城市天气：当前天气 + 未来1-7天预报，含降水概率、雨量和带伞建议。支持中文城市名（杭州/成都/深圳/北京等）和家庭成员别名（妈妈/爸爸/爸妈→成都，妹妹→深圳）。',
parameters: {
city: { type: 'string', required: true, description: '城市名或家庭成员称呼，如 杭州、成都、深圳、妈妈、妹妹' },
days: { type: 'number', description: '预报天数 1-7，默认 1' },
},
output: {
schema: { type: 'string' },
render: (_a, v) => [{ type: 'text', text: v }],
},
async execute(args) {
let cityName = String(args.city || '').trim()
if (!cityName) return '请提供城市名，如 杭州 / 成都 / 深圳'
if (FAMILY[cityName]) cityName = FAMILY[cityName]
const days = Math.min(Math.max(parseInt(args.days, 10) || 1, 1), 7)
try {
let geo = await fetch(`https://geocoding-api.open-meteo.com/v1/search?name=${encodeURIComponent(cityName)}&count=1&language=zh&format=json`).then(r => r.json())
if (!geo.results || !geo.results.length) {
geo = await fetch(`https://geocoding-api.open-meteo.com/v1/search?name=${encodeURIComponent(cityName)}&count=1&format=json`).then(r => r.json())
}
if (!geo.results || !geo.results.length) return `未找到城市「${args.city}」，试试写全称，如 杭州市`
const p = geo.results[0]
const url = `https://api.open-meteo.com/v1/forecast?latitude=${p.latitude}&longitude=${p.longitude}¤t=temperature_2m,weather_code,relative_humidity_2m,wind_speed_10m&daily=weather_code,temperature_2m_max,temperature_2m_min,precipitation_probability_max,precipitation_sum&timezone=auto&forecast_days=${days}`
const d = await fetch(url).then(r => r.json())
const cur = d.current
const curW = WMO[cur.weather_code] || `代码${cur.weather_code}`
const lines = []
lines.push(`📍 ${p.name}${p.admin1 ? '（' + p.admin1 + '）' : ''} 当前：${curW}，${cur.temperature_2m}°C，湿度${cur.relative_humidity_2m}%，风速${cur.wind_speed_10m}km/h`)
lines.push('')
d.daily.time.forEach((t, i) => {
const wc = d.daily.weather_code[i]
const prob = d.daily.precipitation_probability_max[i]
const sum = d.daily.precipitation_sum[i]
const date = new Date(t + 'T00:00:00Z')
lines.push(`${WEEK[date.getUTCDay()]} ${t.slice(5)}：${WMO[wc] || wc}｜${d.daily.temperature_2m_min[i]}~${d.daily.temperature_2m_max[i]}°C｜降水概率${prob}%｜雨量${sum}mm｜${umbrella(prob, sum)}`)
})
return lines.join('\n')
} catch (e) {
return `查询失败：${e.message}`
}
},
}))
}
```