Agent Skills Platform turns documented work and supporting evidence into tested, installable skills for coding agents. Teams use it to review, publish, maintain, and safely reuse agent workflows, with the catalogue entries serving as skills and plugins built for that ecosystem.
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 FrancyJGLisboa/agent-skill-creator --skill live-weather-briefing-skillgit clone --depth 1 https://github.com/FrancyJGLisboa/agent-skill-creatorWrote 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/francyjglisboa/agent-skill-creator/live-weather-briefing-skill)<a href="https://agentmods.dev/skills/francyjglisboa/agent-skill-creator/live-weather-briefing-skill"><img src="https://agentmods.dev/badge/skills/francyjglisboa/agent-skill-creator/live-weather-briefing-skill/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/francyjglisboa/agent-skill-creator/live-weather-briefing-skill"><img src="https://agentmods.dev/badge/skills/francyjglisboa/agent-skill-creator/live-weather-briefing-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, 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 22 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.
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 | $0.00085 | $0.00594 |
| Opus 5 | $0.00043 | $0.00297 |
| Sonnet 5 | $0.00017 | $0.00119 |
| Haiku 4.5 | $0.00009 | $0.00059 |
Grade A, and why
live-weather-briefing-skill scanned grade A with 0 findings 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 12d 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
/live-weather-briefing-skill
Create a current weather briefing for one city. Resolve the city through Open-Meteo's geocoding API, then retrieve current conditions from its forecast API. Always show the resolved location, observation time, and source URLs.
Run
python3 scripts/run_pipeline.py --city "Sao Paulo, BR" --output briefing.md
The command makes two live, read-only API requests and writes a Markdown briefing. It never books travel, sends alerts, or changes external data.
Required behavior
- Use the first exact geocoding result and show its country and coordinates.
- Retrieve current temperature, apparent temperature, wind speed, weather code, and observation time.
- State that weather is advisory and include the source URLs.
- If a city cannot be resolved or an API response is incomplete, stop with an error; do not invent conditions.
Gotchas
- Current conditions are model data, not a safety alert. Check local official warnings before decisions involving risk.
- A city name can be ambiguous. Include a country or region in the request when the city is not unique.
- Conditions change after retrieval; the briefing's observation time identifies the freshness of this result.
References
What ships with it
21 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- .claude-plugin/marketplace.json 376 B
- .claude-plugin/plugin.json 223 B
- AGENTS.md 664 B
- discovery.json 2.1 KB
- evals/golden/new-york/input.txt 13 B
- evals/golden/sao-paulo/input.txt 14 B
- evals/golden/tokyo/input.txt 10 B
- evals/live-weather-briefing.eval.md 1.4 KB
- EVOLUTION.md 745 B
- install.ps1 25 KB runs code
- interview.json 5.6 KB
- scripts/dependency_health.py 3.9 KB runs code
- scripts/evolve.py 10 KB runs code
- scripts/review_staleness.py 6.2 KB runs code
- scripts/run_evals.py 49 KB runs code
- scripts/run_pipeline.py 4.7 KB runs code
- scripts/schema_drift.py 7.3 KB runs code
- scripts/skill_document.py 9.8 KB runs code
- scripts/staleness_check.py 7.5 KB runs code
- scripts/success_ledger.py 16 KB runs code
- skill.graph.json 5.3 KB
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.
- 12d ago First seen · 65 lines · 85 tokens per session scan A b8b70752fa6a
live-weather-briefing-skill is a skill published in the GitHub repository FrancyJGLisboa/agent-skill-creator (2,378 stars, last pushed 8d ago), licensed MIT. It adds 85 tokens to every session and 594 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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