Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add besoeasy/open-skills --skill free-weather-datagit clone --depth 1 https://github.com/besoeasy/open-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/besoeasy/open-skills/free-weather-data)<a href="https://agentmods.dev/skills/besoeasy/open-skills/free-weather-data"><img src="https://agentmods.dev/badge/skills/besoeasy/open-skills/free-weather-data/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/besoeasy/open-skills/free-weather-data"><img src="https://agentmods.dev/badge/skills/besoeasy/open-skills/free-weather-data.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 8 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Data Exfiltration · line 44 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 55 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 70 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 110 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 119 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 135 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 450 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Excessive Agency · line 475 Skill allows unbounded resource consumption (API calls, storage, compute). Without rate limits or quotas, a compromised or misbehaving agent can cause denial-of-service or cost overruns.Fix: Set explicit rate limits, timeouts, and resource quotas for API calls, file operations, and compute. Implement circuit breakers for runaway loops.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00059 | $0.04664 |
| Opus 5 | $0.00030 | $0.02332 |
| Sonnet 5 | $0.00012 | $0.00933 |
| Haiku 4.5 | $0.00006 | $0.00466 |
Grade A, and why
free-weather-data scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s "https://api.open-meteo.com/v1/forecast?latitude=${LAT}&longitude=${LON}¤t=temperature_2m,relative_humidity_2m,apparent_temperature,precipitation,weather_code,wind_speed_10m&temperature_unit=fahrenheit" \ How it starts
The opening of the file, as written. The whole thing — 533 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Free Weather Data API — Open-Meteo & wttr.in
Get current weather, forecasts, and historical weather data using free APIs. No API keys required. Privacy-respecting alternative to paid weather APIs ($5-100/month).
Why This Replaces Paid Weather APIs
💰 Cost savings:
- ✅ 100% free — no API keys, no rate limits
- ✅ Comprehensive data — current, forecast, historical weather
- ✅ Open source — Open-Meteo is fully open-source
- ✅ Privacy-first — no tracking or data collection
Perfect for AI agents that need:
- Weather conditions for location-based decisions
- Forecast data for planning and scheduling
- Historical weather data for analysis
- Weather alerts and monitoring
Quick comparison
| Service | Cost | Rate limit | API key required | Privacy |
|---|---|---|---|---|
| OpenWeatherMap | $0-180/month | 60 calls/min free | ✅ Yes | ❌ Tracked |
| WeatherAPI | $0-70/month | 1M calls/month free | ✅ Yes | ❌ Tracked |
| Open-Meteo | Free | 10k req/day | ❌ No | ✅ Private |
| wttr.in | Free | Unlimited | ❌ No | ✅ Private |
Skills
get_current_weather_open_meteo
Get current weather using Open-Meteo (most accurate and comprehensive).
# Current weather by coordinates
LAT=40.7128
LON=-74.0060
curl -s "https://api.open-meteo.com/v1/forecast?latitude=${LAT}&longitude=${LON}¤t=temperature_2m,relative_humidity_2m,apparent_temperature,precipitation,weather_code,wind_speed_10m&temperature_unit=fahrenheit" \
| jq '{
temperature: .current.temperature_2m,
feels_like: .current.apparent_temperature,
humidity: .current.relative_humidity_2m,
wind_speed: .current.wind_speed_10m,
precipitation: .current.precipitation,
weather_code: .current.weather_code
}'
# With timezone
curl -s "https://api.open-meteo.com/v1/forecast?latitude=${LAT}&longitude=${LON}¤t=temperature_2m,weather_code&timezone=America/New_York" \
| jq '{temperature: .current.temperature_2m, time: .current.time}'
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 533 lines · 59 tokens per session scan A e7f7eedbb431
free-weather-data is a skill published in the GitHub repository besoeasy/open-skills (132 stars, last pushed 7d ago), licensed MIT. It adds 59 tokens to every session and 4,664 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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