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 SpartanLabsXyz/simmer-sdk --skill polymarket-weather-tradergit clone --depth 1 https://github.com/SpartanLabsXyz/simmer-sdkWrote 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/spartanlabsxyz/simmer-sdk/polymarket-weather-trader)<a href="https://agentmods.dev/skills/spartanlabsxyz/simmer-sdk/polymarket-weather-trader"><img src="https://agentmods.dev/badge/skills/spartanlabsxyz/simmer-sdk/polymarket-weather-trader/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/spartanlabsxyz/simmer-sdk/polymarket-weather-trader"><img src="https://agentmods.dev/badge/skills/spartanlabsxyz/simmer-sdk/polymarket-weather-trader.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00065 | $0.04271 |
| Opus 5 | $0.00032 | $0.02135 |
| Sonnet 5 | $0.00013 | $0.00854 |
| Haiku 4.5 | $0.00006 | $0.00427 |
Grade A, and why
polymarket-weather-trader 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 248 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Polymarket Weather Trader
Trade temperature markets on Polymarket using NOAA forecast data.
🚨 Framework, not a production trading system. Read DISCLAIMER.md before connecting to a wallet with real funds.
Template skill. Defaults to dry-run mode (no real money). The
--liveflag is a deliberate single-command opt-in for real-money execution. Configure tunables (entry/exit thresholds, locations, etc.) via env vars listed below.
Safety rails (read first)
This skill executes real-money trades on Polymarket only when the --live flag is passed AND the human's wallet is linked to their Simmer account. Trading is bounded by default:
- Dry-run is the default.
python weather_trader.py(no flag) shows opportunities but executes no trades. The--liveflag is required for real-money execution. There is no "auto-graduate" path. $SIMpaper sandbox option. SetTRADING_VENUE=simto trade Simmer's $SIM virtual currency at real prices — useful for validating the strategy without USDC exposure.- Real-money trading requires explicit human verification. A wallet must be linked at simmer.markets/dashboard before any real trade lands. Without a linked wallet the SDK rejects real-money order construction.
- Per-trade cap.
SIMMER_WEATHER_MAX_POSITION_USDdefaults to$2.00per trade. Configurable via env var, capped at the user's dashboard-set platform per-trade limit. - Daily caps. Platform-level daily caps apply (max trades/day, max USD/day). Set at simmer.markets/dashboard → SDK settings.
- Auto stop-loss is ON by default. Server-side risk monitor watches every buy. Threshold is configurable per user at simmer.markets/dashboard → Settings → Auto Risk Monitor. It cannot protect against gap-resolution, though: weather temperature buckets jump straight to about 0 at resolution rather than decaying through your stop, so a percentage stop has no price to trigger on and no liquidity to exit into. Size for the full loss, not for the stop. See DISCLAIMER.md.
- Strategy-side safeguards. Beyond platform risk monitors, this skill checks flip-flop, slippage (
SIMMER_WEATHER_SLIPPAGE_MAX, default 15%), time-decay (SIMMER_WEATHER_MIN_HOURS_TO_RESOLVE, default 2h), and resolved-market status before every order. Disable only with--no-safeguards(not recommended). - Reversibility. Open positions exit automatically when price >
SIMMER_WEATHER_EXIT_THRESHOLD(default0.45), or viaclient.cancel_order()/ a manual sell.ENTRY_THRESHOLDis an upper bound (buy below). If you raise it above the exit default (e.g. entry0.50vs exit0.45), the skill will try to sell the same position on the next cycle — raiseEXIT_THRESHOLDtoo, or own exits yourself.
What ships with it
12 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.
- CHANGELOG.md 9.2 KB
- clawhub.json 9.1 KB
- config.json 30 B
- DISCLAIMER.md 2.3 KB
- scripts/status.py 4.3 KB runs code
- tests/test_entry_safeguards.py 6.4 KB runs code
- tests/test_resolution_criteria_reword.py 12 KB runs code
- tests/test_source_agreement.py 7.0 KB runs code
- tests/test_sources_none.py 4.0 KB runs code
- tests/test_station_name_resolve.py 6.1 KB runs code
- tests/test_weathertrader_preflight_gate.py 6.2 KB runs code
- weather_trader.py 95 KB runs code
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.
- 3d ago Changed · +11 lines eff480ca847b
- 6d ago Changed 80721c0c1a9f
- 12d ago First seen · 237 lines · 65 tokens per session scan A 53530c46849a
polymarket-weather-trader is a skill published in the GitHub repository SpartanLabsXyz/simmer-sdk (48 stars, last pushed today), licensed MIT. It adds 65 tokens to every session and 4,271 once invoked, about $0.0003 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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