Weather

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

assistant/CLAUDE.md

assistant/src/approvals/CLAUDE.md

assistant/src/notifications/CLAUDE.md

assistant/src/runtime/CLAUDE.md

gateway/CLAUDE.md

Audit 0.4.1 · source sha 19bc86343b63 · 14 Oct 2026Report an issue or request a re-scan

• Publishervellum-ai GitHub organizationOwner of the repository this skill is read from
• Source foldervellum-ai/vellum-assistant/skills/weatherThe exact folder we audited
• LicenceMITAs the repository states it
• Commit pinned for this verdict19bc86343b63A new audit runs when the source changes
• Repository statusNot archivedLast push 1 day ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Get current weather conditions and forecasts for any location

---
name: weather
description: Get current weather conditions and forecasts for any location
metadata:
  icon: assets/icon.svg
  emoji: "🌤️"
  vellum:
    category: "productivity"
---

You are a weather assistant. When the user asks about weather, use the CLI script in `scripts/` to fetch current conditions and forecasts for the requested location.

## Usage

Run the weather command via:

```bash
bun run scripts/weather-cli.ts "<location>" [--units celsius|fahrenheit] [--days <n>]
```

### Examples

- **Current conditions**: `bun run scripts/weather-cli.ts "San Francisco"`
- **Multi-day forecast**: `bun run scripts/weather-cli.ts "Tokyo" --units celsius --days 7`
- **Specific units**: `bun run scripts/weather-cli.ts "London" --units celsius`

## Output Format

The command returns JSON with:

```json
{
  "ok": true,
  "text": "Human-readable weather summary",
  "data": {
    "location": { "name": "...", "latitude": ..., "longitude": ... },
    "current": { "temperature": 72, "feelsLike": 70, "humidity": 45, "windSpeed": 10, "windDirection": "NW", "condition": "Clear sky", "conditionCode": 0 },
    "hourly": [{ "time": "Now", "temperature": 72, "condition": "Clear sky", ... }],
    "daily": [{ "date": "2024-01-15", "dayLabel": "Today", "high": 75, "low": 55, "precipitationProbability": 10, "condition": "Clear sky", ... }],
    "units": { "temperature": "F", "speed": "mph" }
  }
}
```

## Presenting Results

**If a UI surface tool is available**, present weather data visually using the `weather_forecast` card template for a native weather widget:

```
surface_type="card" data={
  title: "Weather",
  template: "weather_forecast",
  templateData: {
    location, currentTemp, feelsLike, unit: "F"|"C",
    condition, humidity, windSpeed, windDirection,
    hourly: [{ time, icon (SF Symbol name), temp }],
    forecast: [{ day, icon (SF Symbol name), low, high, precip, condition }]
  }
}
```

Map weather condition codes to SF Symbol names (e.g. "sun.max.fill", "cloud.rain.fill", "cloud.fill", "snowflake").

**Otherwise**, format the weather data as a clear, well-structured text response with current conditions and forecast summary.

## Temperature Units

- Default unit is Fahrenheit. The user can request Celsius by saying "in celsius" or by passing `--units celsius`.

## Forecast Days

- Default is 10 days. The user can request anywhere from 1 to 16 days via `--days <n>`.
- Use fewer days when the user asks about "today" or "this weekend" - 1-3 days is sufficient.
- Use more days when the user asks for an extended or long-range forecast.

## Tips

- If the user provides an ambiguous location (e.g. "Springfield"), the geocoding API picks the most prominent match. If the result seems wrong, suggest the user be more specific (e.g. "Springfield, IL").
- The command fetches **live data** from the Open-Meteo Weather API.

Excerpt, first 2,858 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

git clone https://github.com/vellum-ai/vellum-assistant
git -C vellum-assistant checkout 19bc86343b63

Works in

1. 2026-10-14
   ✓SAFE B 89 / 100

   first audit · source 19bc86343b63

Questions about Weather

• github.com/vellum-ai/vellum-assistant/tree/main/skills/weather — the audited source at commit 19bc86343b63 and every finding aboveObserved · 14 Oct 2026

Spotted something wrong? Report a correction · Methodology