neqsim-water-hammer SKILL.md skillA
neqsim-water-hammer 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-water-hammer@git:20261030.eb4092fPins git:20261030.eb4092f 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-water-hammer/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261030.eb4092f, committed Oct 30, 2026
- First version recorded
- May 10, 2026
- Size
- 8,611 bytes
- Repository stars
- 167
- License
- Apache-2.0
Water hammer and liquid hammer screening workflow for NeqSim. USE WHEN: evaluating fast valve closures, pump trips, check-valve slam, hydraulic surge, STID/P&ID route extraction, tagreader event windows, or MCP runWaterHammer studies. Covers WaterHammerPipe, WaterHammerStudy, STID route geometry, tagreader field-data overrides, pressure envelopes, Joukowsky checks, and screening limitations.
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
# Water Hammer and Liquid Hammer Screening Use this skill when a task involves hydraulic surge from fast valve movement, pump trip, check-valve slam, ESD closure, or other rapid liquid-flow changes. The core model is `WaterHammerPipe`; the workflow facade is `WaterHammerStudy`; MCP clients use `runWaterHammer`. ## When To Use - Fast ESD or isolation-valve closure in water, condensate, oil, MEG, glycol, or other liquid-rich lines. - Pump trip, pump start, check-valve slam, or sudden flow setpoint changes. - STID/P&ID/E3D/stress-isometric route screening before a detailed surge study. - Tagreader event-window replay where measured pressure, flow, temperature, and valve position should override design-basis values. - Ranking which lines need detailed vendor or specialist surge analysis. Do not use this as final pipe-stress approval. Treat it as a fast screening and evidence-pack workflow. For **Safety Shutdown**, read the current [kernel and prescribed-travel guide](../../../docs/wiki/water_hammer_implementation.md) and [campaign acceptance](https://github.com/equinor/neqsim/issues/4707) first. The single-line kernel integrates characteristic fluxes over physical cells. …
Read the whole file at its exact version.
How to install
mdr add equinor/neqsim/neqsim-water-hammer@sha256:72e81567a1c4c674The line at the top of this page pins the label git:20261030.eb4092f, 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_xfsj35sgsd2jufnb)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between May 10, 2026 and Oct 30, 2026, about one every 58 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261030.eb4092f latest | 2026-10-30 | eb4092f | 8,611 B | A | view · diff |
| git:20261030.ff0550c | 2026-10-30 | ff0550c | 7,315 B | A | view · diff |
| git:20261029.5078e1e | 2026-10-29 | 5078e1e | 5,970 B | A | view · diff |
| git:20260510.f20567c | 2026-05-10 | f20567c | 5,184 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 (8611 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_xfsj35sgsd2jufnb GET https://markdownregistry.com/api/v1/resolve?ref=equinor/neqsim/neqsim-water-hammer GET https://markdownregistry.com/api/v1/blob/72e81567a1c4c6748a4e03b110c6f3ef20e34b0954f781c664a16eec00c3cc4a
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.