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-mert-snipergit 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-mert-sniper)<a href="https://agentmods.dev/skills/spartanlabsxyz/simmer-sdk/polymarket-mert-sniper"><img src="https://agentmods.dev/badge/skills/spartanlabsxyz/simmer-sdk/polymarket-mert-sniper/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-mert-sniper"><img src="https://agentmods.dev/badge/skills/spartanlabsxyz/simmer-sdk/polymarket-mert-sniper.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 | $0.00076 | $0.02260 |
| Opus 5 | $0.00038 | $0.01130 |
| Sonnet 5 | $0.00015 | $0.00452 |
| Haiku 4.5 | $0.00008 | $0.00226 |
Grade A, and why
polymarket-mert-sniper 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 6d 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 — 195 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mert Sniper
Near-expiry conviction trading on Polymarket. The skill scans markets in their final minutes of pricing, filters for strongly-skewed splits, and places bounded trades against the under-priced side.
🚨 Framework, not a production trading system. Read DISCLAIMER.md before connecting to a wallet with real funds. Dry-run is the default;
--liveis required for any real-USDC trade. Defaults: $10 max per trade, 60/40 split minimum, 8-minute expiry window, 5 trades per scan cycle — adjust deliberately before scaling.
This is a template. The default logic (expiry + split filter) is a starting point — remix it with your own filters, timing rules, or market selection criteria. The skill handles all the plumbing (market discovery, trade execution, safeguards). Your agent provides the alpha.
Strategy attribution: @mert — see source thread for the original methodology (topic filter, near-expiry timing, strong-split entry).
News-recency veto. Optional guard that checks Simmer's macro-news schedule before order placement and skips matching news-resolution markets inside the first 30 seconds after CPI, BLS jobs/unemployment, FOMC, nonfarm payrolls, or quarterly earnings events. Continuous-feed crypto Up/Down markets are not blocked by this veto. Default is off until internal positive backfill coverage exists; set
enable_news_veto=trueto enable it.
When to Use This Skill
Use this skill when the user wants to:
- Trade markets that are about to resolve (last-minute conviction bets)
- Filter by topic (e.g. only SOL/crypto markets)
- Cap bet size (e.g. never more than $10)
- Only trade when odds are strongly skewed (e.g. 60/40 or better)
- Run an automated expiry-sniping strategy
Setup Flow
-
Install the Simmer SDK
pip install simmer-sdk -
Ask for Simmer API key
- Get it from simmer.markets/dashboard -> SDK tab
- Store in environment as
SIMMER_API_KEY
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.
- 6d ago Changed b95922bf8462
- 13d ago First seen · 195 lines · 76 tokens per session scan A 4e5e7cc6b297
polymarket-mert-sniper is a skill published in the GitHub repository SpartanLabsXyz/simmer-sdk (48 stars, last pushed yesterday), licensed MIT. It adds 76 tokens to every session and 2,260 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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