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-btc-up-down-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-btc-up-down-trader)<a href="https://agentmods.dev/skills/spartanlabsxyz/simmer-sdk/polymarket-btc-up-down-trader"><img src="https://agentmods.dev/badge/skills/spartanlabsxyz/simmer-sdk/polymarket-btc-up-down-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-btc-up-down-trader"><img src="https://agentmods.dev/badge/skills/spartanlabsxyz/simmer-sdk/polymarket-btc-up-down-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 | $0.00075 | $0.02909 |
| Opus 5.5 | $0.00030 | $0.01164 |
| Sonnet 5.5 | $0.00015 | $0.00582 |
| Haiku 4.5 | $0.00007 | $0.00291 |
Grade A, and why
polymarket-btc-up-down-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 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.
How it starts
The opening of the file, as written. The whole thing — 233 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Polymarket BTC Up-Down Trader
Trade Polymarket's BTC daily and weekly UP/DOWN markets with built-in exit discipline. Enters on Binance momentum signals, exits automatically before resolution tail risk bites.
🚨 Framework, not a production trading system. Read DISCLAIMER.md before connecting to a wallet with real funds.
Polymarket only. All trades execute on Polymarket with real USDC. Use
--livefor real trades; default is dry run.
Not for fast (5m/15m) markets. Use
polymarket-fast-loopfor those. This skill targets daily and weekly BTC direction markets with hours-to-days of duration.
What's New in v1.2.3
- Removed the "Oracle-Engineering Halt Gate" section. This skill never called that detector, and it does not trade the ≤5-minute markets the gate targets. No code change.
What's New in v1.2.2
- Live NO entry is YES-scale.
avg_costis the held-side price. A NO bought at 0.30 now stores entry 0.70 sotarget_hitcan fire. Replay rows have noavg_costand were already correct.
What's New in v1.2.1
- Exit monitor reads real
Positionobjects.client.get_positions()returns dataclasses, not dicts. Replay rows have shares +cost_basisonly. Side, size, and YES-scale entry are derived. A missingsourceslist under replay is this skill.
What's New in v1.2.0
- Replay plane (SIM-5442). Under
simmer backtest(SIMMER_REPLAY=1) discovery, prices, and the clock come from the existing replay harness — sameSIMMER_REPLAY/SIMMER_REPLAY_NOWpattern as weather. Live Gamma and CLOB midpoint stay dark. Candles were already replay-safe. The exit monitor reads SDKPositionobjects and replay share-rows (no.getcrash after the first fill). - Keep / kill / fix for this path is in Troubleshooting. Do not add a second capital lane until a full-tape run can produce an honest KEEP or KILL.
⚠️ BTC UP/DOWN markets carry Polymarket's crypto taker fee. Effective rate is 3.5% at 50¢, up to ~6.6% on cheap shares. Makers pay 0% and earn a 20% rebate from collected taker fees. Factor this into your minimum edge threshold.
What ships with it
7 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.
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 Changed · -8 lines 285cc1e11820
- 1mo ago Changed · -11 lines 35269f5803a2
- 1mo ago Changed · +28 lines 05dbf4a412f1
- 1mo ago First seen · 224 lines · 75 tokens per session scan A 600c6c907a26
polymarket-btc-up-down-trader is a skill published in the GitHub repository SpartanLabsXyz/simmer-sdk (52 stars, last pushed today), licensed MIT. It adds 75 tokens to every session and 2,909 once invoked, about $0.0003 per session on Opus 5.5. 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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