spartanlabsxyz/simmer-sdk · skills/polymarket-market-maker/SKILL.md

polymarket-market-maker skillA

polymarket-market-maker is agent-read markdown (skill) from spartanlabsxyz/simmer-sdk: Post two-sided GTC limit orders on Polymarket CLOB. Manages inventory skew, cancel/replace on price drift, and estimates rebate-eligible volume. Based on Akey et al. (2026): market-making reduces loss probability by 35.9 pp — the single strongest edge on Polymarket..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add spartanlabsxyz/simmer-sdk/polymarket-market-maker@v0.9.0
Exact content
mdr add spartanlabsxyz/simmer-sdk/polymarket-market-maker@sha256:f4a168e345d8488a

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_nhdhxrqfzv6iq3a3.svg)](https://markdownregistry.com/a/art_nhdhxrqfzv6iq3a3)

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Versions

versioncommittedcommitsizeaudit
v0.9.0 latest2026-05-19 15e5f03 7,381 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (7381 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 · 48 stars · license MIT · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_nhdhxrqfzv6iq3a3
GET https://markdownregistry.com/api/v1/resolve?ref=spartanlabsxyz/simmer-sdk/polymarket-market-maker
GET https://markdownregistry.com/api/v1/blob/f4a168e345d8488a0db54f857e9894f50d05daef0e86e79bd67e04fc8b542bad

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.