neqsim-ccs-hydrogen SKILL.md skillA
neqsim-ccs-hydrogen from equinor/neqsim is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add equinor/neqsim/neqsim-ccs-hydrogen@git:20260802.ab675a8Pins git:20260802.ab675a8 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-ccs-hydrogen/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260802.ab675a8, committed Aug 2, 2026
- First version recorded
- Apr 6, 2026
- Size
- 15,400 bytes
- Repository stars
- 167
- License
- Apache-2.0
CO2 capture, transport, storage (CCS) and hydrogen systems patterns for NeqSim. USE WHEN: modeling CO2 pipelines, injection wells, impurity effects on phase behavior, CO2 dense phase transport, hydrogen blending, electrolysis, or any CCS/H2 value chain analysis. Covers CO2 phase behavior, impurity management, well integrity, and hydrogen systems.
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
# CCS and Hydrogen Systems with NeqSim Guide for modeling carbon capture and storage (CCS) value chains and hydrogen systems, including CO2 transport, injection wells, impurity effects, and H2 blending. ## When to Use This Skill - CO2 pipeline design and phase behavior - CO2 injection well analysis and safety - Impurity effects on CO2 phase envelope (H2, N2, O2, H2S, CH4) - Dense phase CO2 transport conditions - CO2 dehydration requirements - Hydrogen blending with natural gas - Water electrolysis and green hydrogen - Blue hydrogen (SMR/ATR + CCS) - Hydrogen pipeline transport ## Applicable Standards | Domain | Standards | Key Requirements | |--------|-----------|-----------------| | CO2 pipeline | DNV-RP-F104, ISO 27913, DNV-ST-F101 | Project composition/phase envelope, transport hydraulics, structural design, fracture/materials/corrosion and lifecycle evidence | | CO2 storage | ISO 27914, EU CCS Directive | Storage site characterization | | CO2 transport | ISO 27913 | Composition specs, phase management | | CO2 quality | ISO 27916 | CO2 stream specification | | Hydrogen pipeline | ASME B31.12 | H2 piping and pipelines | …
Read the whole file at its exact version.
How to install
mdr add equinor/neqsim/neqsim-ccs-hydrogen@sha256:73f723229c4ece86The line at the top of this page pins the label git:20260802.ab675a8, 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.
[](https://markdownregistry.com/a/art_tenpqeig3cw4w6pg)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Apr 6, 2026 and Aug 2, 2026, about one every 59 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260802.ab675a8 latest | 2026-08-02 | ab675a8 | 15,400 B | A | view · diff |
| git:20260418.a3c26d6 | 2026-04-18 | a3c26d6 | 12,537 B | A | view · diff |
| git:20260406.0a42c84 | 2026-04-06 | 0a42c84 | 12,509 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (15400 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
equinor/neqsim · 167 stars · license Apache-2.0 · pushed 2026-11-08 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_tenpqeig3cw4w6pg GET https://markdownregistry.com/api/v1/resolve?ref=equinor/neqsim/neqsim-ccs-hydrogen GET https://markdownregistry.com/api/v1/blob/73f723229c4ece865f9f7d1da6f84abb7c7300df1a745224ffd9f68859665df0
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.