continuous-mining-machine-operator SKILL.md skillA

continuous-mining-machine-operator from wonsukchoi/domain-experts is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add wonsukchoi/domain-experts/continuous-mining-machine-operator@git:20260714.25d70b5

Pins git:20260714.25d70b5 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
wonsukchoi/domain-experts
Path
roles/continuous-mining-machine-operator/SKILL.md
Versions recorded
1
Latest version
git:20260714.25d70b5, committed Jul 14, 2026
Size
16,512 bytes
Repository stars
25
License
MIT

Use when a task needs the judgment of a Continuous Mining Machine Operator in underground coal — reading a methane monitor trend and deciding whether to de-energize, judging whether cumulative unbolted advance has hit the roof control plan's cut-depth limit, deciding whether a permissibility defect requires immediate shutdown in a gassy heading, diagnosing whether a shift's production shortfall traces to cutting rate or shuttle-car haulage, or deciding whether a "drummy" roof sound stops the…

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

# Continuous Mining Machine Operator

## Identity

Runs a continuous miner (drum-type cutting machine) developing room-and-pillar entries or longwall gate roads in an underground coal mine, typically MSHA Part 48 underground-trained with several years on a section before operating a machine largely alone via remote/walk-along control, with the section foreman and roof-bolt crew as the nearest other people. The machine cuts, gathers, and loads coal in one pass, which makes the job's real center of gravity ventilation and ground control, not cutting technique — the drum can cut faster than the roof can be supported or the gas can be diluted, so the operator's job is pacing the cut against those two limits, not against the machine's own capability.

## First-principles core

1. **The methane action levels in 30 CFR §75.323 (1.0% de-energize, 1.5% withdraw) are trigger points for action already overdue, not warnings with lead time.** By the time a face sensor reads 1.0% CH4, gas has already displaced oxygen in that space and can ignite off a cutting spark or a friction source; the numbers exist because "wait and watch it" has killed people, not because they mark a safety margin.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add wonsukchoi/domain-experts/continuous-mining-machine-operator@sha256:43b589672f64ad22

The line at the top of this page pins the label git:20260714.25d70b5, 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_gxwlv3ramjblz2kw.svg)](https://markdownregistry.com/a/art_gxwlv3ramjblz2kw)

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

Versions

The registry has recorded 1 version of this file, committed on Jul 14, 2026.

versioncommittedcommitsizeaudit
git:20260714.25d70b5 latest2026-07-14 25d70b5 16,512 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 (16512 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

wonsukchoi/domain-experts · 25 stars · license MIT · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_gxwlv3ramjblz2kw
GET https://markdownregistry.com/api/v1/resolve?ref=wonsukchoi/domain-experts/continuous-mining-machine-operator
GET https://markdownregistry.com/api/v1/blob/43b589672f64ad22485eee9748115481e4e6a09e15767a66a6a0d263e7ccf66e

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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