simmer-preflight SKILL.md skillA

simmer-preflight 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-preflight@v0.3.7

Pins v0.3.7 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/preflight/SKILL.md
Versions recorded
9
Latest version
v0.3.7, committed Oct 19, 2026
First version recorded
May 21, 2026
Size
9,588 bytes
Repository stars
56
License
MIT

Pre-trade readiness check for autonomous agents. One call returns wallet identity, venue status, spendable balance, open exposure, and a structured ok_to_trade verdict. Live real-venue trades auto-run this check and refuse when ok_to_trade is False.

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 Preflight

Live real-money trades now **enforce** this check. `client.trade(..., dry_run=False)` and `client.place_combo(..., dry_run=False)` on a `live=True` client against a real venue (`polymarket` / `kalshi`) auto-run `preflight()` and refuse if `ok_to_trade` is False, surfacing the blocker codes. The auto-gate's exposure cap is opt-in (`EXPOSURE_CAP_USD` set → enforced; unset → cap disabled) and sells are exempt from cap math so an over-cap book can still reduce exposure. Wallet / venue / gas blockers still run. Paper, `venue="sim"`, and `dry_run=True` are unchanged. One-release migrate valve: `skip_preflight=True` or `SIMMER_SKIP_PREFLIGHT=1` (deprecation warning). MCP `simmer_trade` uses the same live gate; `SIMMER_MCP_ALLOW_LIVE` is still required and is not a replacement.

Call `client.preflight()` yourself when you want the full result (wallet, exposure, `client_preflight_id`) before you size or submit. One call returns:

- **Who you are**: agent ID, tier, venue resolved from your API key context
- **Which wallet will sign**: execution wallet, deposit wallet, signer mode (OWS / external key / managed)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add spartanlabsxyz/simmer-sdk/simmer-preflight@sha256:ee32bee34fb415c5

The line at the top of this page pins the label v0.3.7, 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_iksg5kofp4lecdkw.svg)](https://markdownregistry.com/a/art_iksg5kofp4lecdkw)

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

Versions

The registry has recorded 9 versions of this file, between May 21, 2026 and Oct 19, 2026, about one every 19 days.

versioncommittedcommitsizeaudit
v0.3.7 latest2026-10-19 667a734 9,588 BA view · diff
v0.3.62026-09-15 457b6cc 9,484 BA view · diff
v0.3.52026-09-15 c30943a 9,032 BA view · diff
v0.3.32026-09-08 ef8240d 7,727 BA view · diff
v0.3.22026-08-12 07241b8 7,727 BA view · diff
v0.3.12026-05-24 c97590c 7,711 BA view · diff
v0.3.02026-05-24 b2bb120 7,713 BA view · diff
v0.2.02026-05-24 f426d5e 7,715 BA view · diff
v0.1.02026-05-21 fd07ad2 7,704 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 (9588 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_iksg5kofp4lecdkw
GET https://markdownregistry.com/api/v1/resolve?ref=spartanlabsxyz/simmer-sdk/simmer-preflight
GET https://markdownregistry.com/api/v1/blob/ee32bee34fb415c5a6302948e1303fc63e2842dc6666debe5ab870902b20b80d

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

Other files named simmer-preflight

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spartanlabsxyz/simmer-sdk · mcp/bundled-skills/preflight/SKILL.md · Pre-trade readiness check for autonomous agents. One call returns wallet identity, venue status, spendable balance…
v0.3.7 · audit A · 56 stars

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