Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add equinor/neqsim-community-skills --skill neqsim-olga-multiphase-simulatorgit clone --depth 1 https://github.com/equinor/neqsim-community-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/equinor/neqsim-community-skills/neqsim-olga-multiphase-simulator)<a href="https://agentmods.dev/skills/equinor/neqsim-community-skills/neqsim-olga-multiphase-simulator"><img src="https://agentmods.dev/badge/skills/equinor/neqsim-community-skills/neqsim-olga-multiphase-simulator/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/equinor/neqsim-community-skills/neqsim-olga-multiphase-simulator"><img src="https://agentmods.dev/badge/skills/equinor/neqsim-community-skills/neqsim-olga-multiphase-simulator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00120 | $0.18114 |
| Opus 5.5 | $0.00048 | $0.07246 |
| Sonnet 5.5 | $0.00024 | $0.03623 |
| Haiku 4.5 | $0.00012 | $0.01811 |
Grade A, and why
neqsim-olga-multiphase-simulator scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 1,091 lines — stays where its author put it; the contents beside it link to each section on GitHub.
OLGA Multiphase Flow Simulator
OLGA (SLB) is a transient one-dimensional three-phase pipe-flow simulator. It is the industry reference for slug tracking, terrain slugging, shut-in and restart, blowdown, liquid surge to a receiving facility, hydrate and wax management, well clean-up and drilling hydraulics.
This skill is the execution and post-processing layer: how to find the installed OLGA, validate a case cheaply, launch the batch engine correctly, understand why it stopped, and read its results into Python. It does not teach you how to build a flow-assurance model from nothing, and it never replaces a qualified flow-assurance review.
OLGA is licensed commercial software. This skill assumes the user already has a valid installation and licence; it only drives what is installed locally.
When to Use
- A task must run an existing OLGA case and extract numbers from the results.
- An OLGA case needs a PVT table or a hydrate equilibrium curve generated from a NeqSim fluid, so that OLGA and NeqSim share one fluid and one hydrate boundary.
- A parametric or sensitivity sweep must be run reproducibly rather than by hand in the GUI.
- An OLGA run failed and the exit code, log or licence state must be diagnosed.
- OLGA results must be compared against NeqSim screening or pipeline models.
Do not use this skill to invent a case from scratch, to guess PVT tables, or to interpret a transient result without a flow-assurance engineer in the loop.
Inputs
case: path to the.genkey/.keykeyword file the batch engine reads. The GUI.opiproject is not an engine input — generate thegenkeyfrom it first.pvt_file: the.tabPVT table referenced byFILES PVTFILE=, resolved relative to the working directory. Generated from a NeqSim fluid (two- or three-phase) so OLGA and NeqSim share one fluid.hydrate_curve: optional hydrate equilibrium curve forHYDRATECHECK, also generated from the same NeqSim fluid.restart_file: optional.rswsnapshot for a restart (RESTART READFILE=ON).parameters: mapping of{KEYWORD: {ATTRIBUTE: value}}overrides applied byapply_parameters/set_parameter/write_variantfor sweeps, e.g.{"INTEGRATION": {"ENDTIME": "6 h"}}.out_dir: output directory for the run (-outDir); defaults to the case directory.nthreads: thread count for parallel execution (-nthreads).timeout: wall-clock limit in seconds after which the run is terminated.olga_home/olga_engine: optional explicit installation or engine path; otherwiseOLGA_HOME/OLGA_ENGINEor installation discovery is used.- Licence environment:
LM_LICENSE_FILEorSLBSLS_LICENSE_FILE, plus a reachable licence server when the licence is served rather than node-locked.
What ships with it
15 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- examples/run_olga_case.py 3.0 KB runs code
- pyproject.toml 529 B
- README.md 1.8 KB
- src/olga_multiphase_simulator/__init__.py 1.6 KB runs code
- src/olga_multiphase_simulator/discovery.py 9.7 KB runs code
- src/olga_multiphase_simulator/genkey.py 9.2 KB runs code
- src/olga_multiphase_simulator/geometry.py 14 KB runs code
- src/olga_multiphase_simulator/results.py 15 KB runs code
- src/olga_multiphase_simulator/runner.py 12 KB runs code
- tests/conftest.py 3.1 KB runs code
- tests/test_discovery.py 2.8 KB runs code
- tests/test_genkey.py 3.9 KB runs code
- tests/test_geometry.py 5.9 KB runs code
- tests/test_results.py 3.3 KB runs code
- tests/test_runner.py 2.8 KB runs code
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago Changed · -54 tokens per session b85acfd6726d
- 6d ago Changed · +14 lines dcf3bfe4c793
- 7d ago Changed · +23 lines be761f83b67e
- 11d ago First seen · 1,054 lines · 174 tokens per session scan A 6198b5aa6e2d
neqsim-olga-multiphase-simulator is a skill published in the GitHub repository equinor/neqsim-community-skills (4 stars, last pushed 3d ago), licensed Apache-2.0. It adds 120 tokens to every session and 18,114 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-19.
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