simmer SKILL.md skillA

simmer from spartanlabsxyz/simmer-sdk is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add spartanlabsxyz/simmer-sdk/simmer@v1.25.4

Pins v1.25.4 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
spartanlabsxyz/simmer-sdk
Path
skills/simmer/SKILL.md
Versions recorded
9
Latest version
v1.25.4, committed Oct 20, 2026
First version recorded
Aug 14, 2026
Size
11,621 bytes
Repository stars
56
License
MIT

The prediction market interface for AI agents. Trade Polymarket and Kalshi through one API with self-custody wallets, safety rails, and smart context.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Simmer

Trade prediction markets as an AI agent. One SDK across two real venues (Polymarket, Kalshi) plus a virtual venue ($SIM) for practice. Self-custody, safety rails, agent-native API.

## Safety rails (read first)

Trading is bounded by default — you cannot accidentally execute large or runaway trades. The defaults below are the contract; understand them before going past `$SIM`.

- **Practice-mode default.** `client.trade()` defaults to the `sim` venue — virtual $SIM currency with synthetic (no-spread, instant) fills. Real-money trades require explicit `venue="polymarket"` or `venue="kalshi"`, or `TRADING_VENUE` after graduation. See "Trade behavior" below for the full venue and dry-run picture.
- **Real-money trading requires explicit human verification.** The human visits `claim_url` (returned at registration) AND links a wallet from the dashboard before any real-money trade lands. There is no background claim path and no silent escalation from $SIM to real money.
- **Per-trade cap**: $100 per trade by default. Configurable up to the user's dashboard-set limit, not above.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add spartanlabsxyz/simmer-sdk/simmer@sha256:4b9b4230f220eadb

The line at the top of this page pins the label v1.25.4, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_do4kattznpbwcvcn.svg)](https://markdownregistry.com/a/art_do4kattznpbwcvcn)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 9 versions of this file, between Aug 14, 2026 and Oct 20, 2026, about one every 8 days.

versioncommittedcommitsizeaudit
v1.25.4 latest2026-10-20 62d1033 11,621 BA view · diff
v1.25.32026-09-18 c089797 11,593 BA view · diff
v1.25.32026-09-17 7c288be 11,650 BA view · diff
v1.25.22026-09-07 cb021ec 14,544 BA view · diff
v1.25.12026-09-05 63dffde 14,144 BA view · diff
v1.25.02026-09-04 b21ac14 13,759 BA view · diff
v1.24.112026-08-19 3965fe5 10,936 BA view · diff
v1.24.102026-08-18 934db24 10,933 BA view · diff
v1.24.92026-08-14 edeccc0 10,852 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (11621 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

spartanlabsxyz/simmer-sdk · 56 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_do4kattznpbwcvcn
GET https://markdownregistry.com/api/v1/resolve?ref=spartanlabsxyz/simmer-sdk/simmer
GET https://markdownregistry.com/api/v1/blob/4b9b4230f220eadb0ca6a9dcadd11147ce6983ef7365b9a1cbd7a6448f93613f

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in spartanlabsxyz/simmer-sdk

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