neqsim-troubleshooting SKILL.md skillA
neqsim-troubleshooting 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-troubleshooting@git:20261016.d652b1dPins git:20261016.d652b1d 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-troubleshooting/SKILL.md- Versions recorded
- 10
- Latest version
- git:20261016.d652b1d, committed Oct 16, 2026
- First version recorded
- Jul 30, 2026
- Size
- 33,933 bytes
- Repository stars
- 167
- License
- Apache-2.0
Troubleshooting playbook for common NeqSim failures. USE WHEN: a simulation fails to converge, produces unexpected results, throws exceptions, or gives zero/NaN values. Covers flash non-convergence, recycle divergence, equipment errors, phase identification issues, and numerical problems.
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 Troubleshooting Playbook Ranked recovery strategies for common failure modes. Try steps in order — stop when the issue is resolved. ## Flash Non-Convergence **Symptom:** `TPflash()` or other flash throws exception or returns wrong phase count. | Step | Action | Why It Helps | |------|--------|-------------| | 1 | `fluid.setMultiPhaseCheck(true)` | Enables detection of liquid-liquid splits and 3-phase regions | | 2 | Try a different EOS: `SystemPrEos` instead of `SystemSrkEos` | PR handles heavier components better near critical | | 3 | Check if near critical point — if $T/T_c > 0.95$ and $P/P_c > 0.8$, use volume-translated EOS: `SystemSrkEosvolcor` | Standard cubic EOS has largest errors near critical | | 4 | Add `fluid.init(0); fluid.init(1);` before flash to force re-initialization | Clears stale internal state from prior calculations | | 5 | Slightly perturb T or P (1 K or 0.1 bar) and re-flash | Exact phase boundary conditions can trap the solver | | 6 | For mixtures with water + hydrocarbons, use CPA: `SystemSrkCPAstatoil` with mixing rule `10` | SRK/PR cannot model hydrogen bonding — water phase behavior is wrong | …
Read the whole file at its exact version.
How to install
mdr add equinor/neqsim/neqsim-troubleshooting@sha256:333771b959014d26The line at the top of this page pins the label git:20261016.d652b1d, 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_ptknvnm56h4yhoy5)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 10 versions of this file, between Jul 30, 2026 and Oct 16, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.d652b1d latest | 2026-10-16 | d652b1d | 33,933 B | A | view · diff |
| git:20261010.7b9e40b | 2026-10-10 | 7b9e40b | 33,905 B | A | view · diff |
| git:20260922.93c4a71 | 2026-09-22 | 93c4a71 | 33,081 B | A | view · diff |
| git:20260912.c5ddb97 | 2026-09-12 | c5ddb97 | 30,877 B | A | view · diff |
| git:20260912.08e460b | 2026-09-12 | 08e460b | 29,054 B | A | view · diff |
| git:20260821.47a11f5 | 2026-08-21 | 47a11f5 | 27,715 B | A | view · diff |
| git:20260810.05d3ba9 | 2026-08-10 | 05d3ba9 | 26,706 B | A | view · diff |
| git:20260802.7f976a3 | 2026-08-02 | 7f976a3 | 25,082 B | A | view · diff |
| git:20260731.f620bdb | 2026-07-31 | f620bdb | 22,862 B | A | view · diff |
| git:20260730.8149082 | 2026-07-30 | 8149082 | 21,192 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 (33933 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_ptknvnm56h4yhoy5 GET https://markdownregistry.com/api/v1/resolve?ref=equinor/neqsim/neqsim-troubleshooting GET https://markdownregistry.com/api/v1/blob/333771b959014d26e6b20a84212315fcc6377a397ff8e197dd51f33b31c6030e
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