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 --skill neqsim-utilities-specificationgit clone --depth 1 https://github.com/equinor/neqsimWrote 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/neqsim-utilities-specification)<a href="https://agentmods.dev/skills/equinor/neqsim/neqsim-utilities-specification"><img src="https://agentmods.dev/badge/skills/equinor/neqsim/neqsim-utilities-specification/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/neqsim-utilities-specification"><img src="https://agentmods.dev/badge/skills/equinor/neqsim/neqsim-utilities-specification.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium analysis-evasion · line 1 Suspicious Unicode normalization or mixed-script contentFix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
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 | $0.00108 | $0.02469 |
| Opus 5.5 | $0.00043 | $0.00988 |
| Sonnet 5.5 | $0.00022 | $0.00494 |
| Haiku 4.5 | $0.00011 | $0.00247 |
Grade A, and why
neqsim-utilities-specification 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 1mo 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 — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.
NeqSim Utilities Specification Skill
Specify and size the seven core utilities every process plant needs:
steam, cooling water, instrument air, fuel gas, nitrogen, demin water, refrigeration.
Choices are usually decided by the grand-composite curve from neqsim-heat-integration
and constrained by site standards (NORSOK U-001, IOGP S-714).
When to Use
- Consolidating heating/cooling duties into utility headers
- Choosing between utility levels (LP vs MP steam, CW vs chilled water)
- Sizing utility headers and consumers
- Drafting utility design basis for FEED
- ESG / energy intensity reporting (kg CO₂ per t product)
Standards: NORSOK U-001 (utility systems), NORSOK P-002 (utility design), IOGP S-714, ASME PTC 12 (steam quality), ISA-7.0.01 (instrument air).
Utility 1 — Steam (HP / MP / LP)
Typical levels — pick from the grand composite curve:
| Level | Pressure | Saturation T | Service |
|---|---|---|---|
| HP | 40–100 barg | 250–310 °C | Driving steam turbines, high-T reboilers |
| MP | 10–25 barg | 180–225 °C | Reboilers, glycol regen, stripper |
| LP | 3–6 barg | 130–160 °C | Tracing, deaerator, low-T reboilers |
| Atmospheric | 0 barg | 100 °C | Heating coils, tank heating |
Selection rule: pick the lowest level that beats the cold stream by ΔTmin + 10 °C margin. Lower steam = cheaper and lets HP go to power generation.
Sizing inputs:
- Total reboiler / heater duty per level
- Letdown allowance (10–20% spare)
- Network losses (3–5% per km of header)
Boiler / HRSG feed water (BFW):
- Conductivity < 0.3 µS/cm (per ASME PTC 12)
- O2 < 7 ppb (deaerator + scavenger like hydrazine or carbohydrazide)
- Hardness < 0.01 ppm (softener / RO)
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.
- 1mo ago First seen · 201 lines · 108 tokens per session scan A a79cdee50e4f
neqsim-utilities-specification is a skill published in the GitHub repository equinor/neqsim (156 stars, last pushed today), licensed Apache-2.0. It adds 108 tokens to every session and 2,469 once invoked, about $0.0004 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 2026-09-03.
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