neqsim-root-cause-analysis SKILL.md skillA

neqsim-root-cause-analysis from equinor/neqsim is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add equinor/neqsim/neqsim-root-cause-analysis@v1.3.0

Pins v1.3.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
equinor/neqsim
Path
.github/skills/neqsim-root-cause-analysis/SKILL.md
Versions recorded
9
Latest version
v1.3.0, committed Nov 4, 2026
First version recorded
May 10, 2026
Size
33,082 bytes
Repository stars
167
License
Apache-2.0

Root cause analysis for process equipment - Bayesian-style diagnosis combining reliability priors (IOGP/SINTEF, CCPS, IEEE 493, Lees, OREDA), historian evidence and NeqSim verification, including the control-loop correlation trap (difference both series, resolve direction from the lag sign). USE WHEN: diagnosing compressor trips, vibration, efficiency loss, separator carryover, exchanger fouling or any operational anomaly. Anchors on neqsim.process.diagnostics.

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

# NeqSim Root Cause Analysis Skill

Systematic equipment-level root cause analysis integrating process simulation,
multi-source reliability data, plant historian time-series, and STID design conditions.

## When to Use

- Equipment trip investigation (compressor, pump, turbine)
- High vibration diagnosis
- Efficiency degradation analysis
- Separator liquid carryover or gas blow-by
- Heat exchanger fouling assessment
- Valve erosion or malfunction
- Any operational anomaly requiring structured root cause identification

## Already-closed incident with a "document learning" ask

When the failure is already resolved and recorded (for example a closed Blalys whose
only open subtask is to document learning), do not re-derive the cause. Cite the
recorded cause, test it for consistency against the historian and alarm evidence
(consistent, contradicted or not testable), then deliver a consequence and learning
screening: capacity impact (for a derated driver use `Compressor.getDriverLimitedEnvelope()`),
the barrier or early indicator that would have shortened the outage, and the cost of
recurrence. Mark causal claims beyond the recorded cause as hypotheses.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add equinor/neqsim/neqsim-root-cause-analysis@sha256:2c1a9a1523b357f6

The line at the top of this page pins the label v1.3.0, 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_mu6z3to6bb3kky2m.svg)](https://markdownregistry.com/a/art_mu6z3to6bb3kky2m)

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

Versions

The registry has recorded 9 versions of this file, between May 10, 2026 and Nov 4, 2026, about one every 22 days.

versioncommittedcommitsizeaudit
v1.3.0 latest2026-11-04 e316ffb 33,082 BA view · diff
v1.3.02026-10-05 d4196e6 30,680 BA view · diff
v1.3.02026-10-04 fc23e28 30,038 BA view · diff
v1.3.02026-09-26 08d0028 28,137 BA view · diff
v1.3.02026-09-17 84ac573 28,293 BA view · diff
v1.2.02026-09-03 3cbdf43 24,885 BA view · diff
v1.2.02026-07-19 f4abb44 23,021 BA view · diff
v1.1.02026-07-11 7e106fc 21,685 BA view · diff
v1.1.02026-05-10 f20567c 20,785 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 (33082 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

equinor/neqsim · 167 stars · license Apache-2.0 · pushed 2026-11-08 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_mu6z3to6bb3kky2m
GET https://markdownregistry.com/api/v1/resolve?ref=equinor/neqsim/neqsim-root-cause-analysis
GET https://markdownregistry.com/api/v1/blob/2c1a9a1523b357f6934105f928c8d0bad197ead219a96cc8b03d57e8b3ebd541

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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