neqsim-utility-balance-screening

neqsim-utility-balance-screening is a skill for Claude Code, Codex from equinor/neqsim-community-skills. It costs 95 tokens per session (1,530 once invoked), scanned A, original, Apache-2.0.

An educational screening calculation for instrument-air demand, cooling-water flow, fuel-gas Wobbe index, and overall utility capacity. Instrument air powers equipment controls, while the Wobbe index helps compare a fuel gas with an accepted operating range.

In plain words
What is it for?
It is for estimating air demand, cooling-water flow, fuel-gas suitability, and simple utility capacity margins during early study work.
Why use it?
It gives a quick way to identify possible shortages or out-of-range fuel without requiring confidential plant data or detailed design information. The results combine several basic utility checks into a capacity view.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for estimating air demand, cooling-water flow, fuel-gas suitability, and simple utility capacity margins during early study work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/equinor/neqsim-community-skills/utility-balance-screening
Install

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.

Any agent
npx skills add equinor/neqsim-community-skills --skill utility-balance-screening
Clone the repo
git clone --depth 1 https://github.com/equinor/neqsim-community-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for neqsim-utility-balance-screening

README.md
[![agentmods](https://agentmods.dev/badge/skills/equinor/neqsim-community-skills/utility-balance-screening/github.svg)](https://agentmods.dev/skills/equinor/neqsim-community-skills/utility-balance-screening)
Your own site
<a href="https://agentmods.dev/skills/equinor/neqsim-community-skills/utility-balance-screening"><img src="https://agentmods.dev/badge/skills/equinor/neqsim-community-skills/utility-balance-screening/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.

agentmods 80×15 button for neqsim-utility-balance-screening

Your own site · 80×15
<a href="https://agentmods.dev/skills/equinor/neqsim-community-skills/utility-balance-screening"><img src="https://agentmods.dev/badge/skills/equinor/neqsim-community-skills/utility-balance-screening.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,530 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00095 $0.01530
Opus 5 $0.00048 $0.00765
Sonnet 5 $0.00019 $0.00306
Haiku 4.5 $0.00010 $0.00153

Measured 11d ago against content hash 7a30ac7e8f4f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

neqsim-utility-balance-screening 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 11d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (examples/basic_utility_balance_screening.py, src/utility_balance_screening/__init__.py, src/utility_balance_screening/model.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/process/utility-balance-screening/SKILL.md · 121 lines

How it starts

The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Utility Balance Screening

Use this skill for public, educational utility-system screening. It estimates instrument air demand, cooling water flow from a duty and a cooling-water temperature rise, a fuel gas Wobbe index with a band check, and a simple capacity utilisation roll-up so an agent can scope a utility study before detailed design.

When to Use

  • When a user asks how much instrument air a set of consumers needs or whether the air/cooling supply is large enough.
  • When an agent needs a quick cooling-water flow estimate from a heat duty and a permitted temperature rise.
  • When a fuel gas Wobbe index must be screened against a sales/fuel band without confidential gas data.
  • When examples must run without proprietary utility loads, vendor data, or company specs.

Inputs

  • instrument_air_consumers: number of instrument air consumers (integer count).
  • air_per_consumer_nm3_h: average free-air demand per consumer in Nm3/h, default 0.3.
  • cooling_duty_kw: total cooling duty to reject in kW, default 0.
  • cooling_water_delta_t_c: permitted cooling-water temperature rise in degrees C, default 10.
  • fuel_gas_lhv_mj_sm3: optional fuel gas lower heating value in MJ/Sm3.
  • fuel_gas_relative_density: optional fuel gas relative density (air = 1).
  • wobbe_min: lower Wobbe index band in MJ/Sm3, default 47.2.
  • wobbe_max: upper Wobbe index band in MJ/Sm3, default 51.41.
  • instrument_air_capacity_nm3_h: optional installed instrument air capacity in Nm3/h.
  • cooling_water_capacity_m3_h: optional installed cooling water capacity in m3/h.

Outputs

  • instrument_air_demand_nm3_h: consumer count multiplied by per-consumer demand and a design margin.
  • cooling_water_flow_m3_h: cooling water flow from the duty and the temperature rise.
  • wobbe_index_mj_sm3: fuel gas Wobbe index, or null if no fuel gas data is supplied.
  • wobbe_in_band: True/False if a Wobbe index is computed, otherwise null.
  • air_utilisation: demand divided by installed air capacity, or null.
  • cooling_utilisation: flow divided by installed cooling capacity, or null.
  • utility_warning: ok, watch, air-undersized, or cooling-undersized.
  • wobbe_warning: ok, wobbe-out-of-range, or no-fuel-data.
  • assumptions: public assumptions used by the placeholder model.

Read the full file on GitHub · 121 lines

Files

What ships with it

6 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.

Changes

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.

  1. 11d ago First seen · 121 lines · 95 tokens per session scan A 7a30ac7e8f4f

Subscribe to this mod's changes

neqsim-utility-balance-screening is a skill published in the GitHub repository equinor/neqsim-community-skills (2 stars, last pushed yesterday), licensed Apache-2.0. It adds 95 tokens to every session and 1,530 once invoked, about $0.0005 per session on Opus 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 2026-08-31.

Related

Other skills, from other repositories

instrument-data-to-allotrope

Convert laboratory instrument output files (PDF, CSV, Excel, TXT) to Allotrope Simple Model (ASM) JSON format or flattened 2D CSV. Use this skill when scientists need to standardize instrument data for LIMS systems, data lakes, or downstream analysis. Supports auto-detection of instrument types. Outputs include full…

anthropics/knowledge-work-plugins · 123 tokens

exploratory-data-analysis

Perform bounded, local exploratory analysis of explicitly supported scientific files. Use for redacted CSV/TSV/JSON profiles; optional NumPy, HDF5, FASTA/FASTQ, and basic image metadata inspection; missingness/leakage audits; outlier and transformation sensitivity; and rigorous EDA report scaffolds. Other domain…

K-Dense-AI/scientific-agent-skills · 83 tokens

matlab

Build, review, migrate, and safely plan MATLAB or GNU Octave numerical workflows, including arrays, tabular/time data, tests, projects, graphics, MAT files, and explicit Python interoperability.

K-Dense-AI/scientific-agent-skills · 42 tokens

phylogenetics

Build and analyze phylogenetic trees using MAFFT (multiple alignment), IQ-TREE 2 (maximum likelihood), and FastTree (fast NJ/ML). Visualize with ETE3 or FigTree. For evolutionary analysis, microbial genomics, viral phylodynamics, protein family analysis, and molecular clock studies.

K-Dense-AI/scientific-agent-skills · 68 tokens

research-engineer

An uncompromising Academic Research Engineer. Operates with absolute scientific rigor, objective criticism, and zero flair. Focuses on theoretical correctness, formal verification, and optimal implementation across any required technology.

davila7/claude-code-templates · 43 tokens

mapping-to-snomed

Maps clinical concept spans extracted by OpenMed to SNOMED CT concepts through a USER-SUPPLIED terminology server (the user's own Ontoserver, Snowstorm, or UMLS/UTS), never a bundled vocabulary. Use when the user wants to code findings, disorders, procedures, body structures, or substances to SNOMED CT, run an ECL…

maziyarpanahi/openmed · 205 tokens