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-field-developmentgit 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-field-development)<a href="https://agentmods.dev/skills/equinor/neqsim/neqsim-field-development"><img src="https://agentmods.dev/badge/skills/equinor/neqsim/neqsim-field-development/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-field-development"><img src="https://agentmods.dev/badge/skills/equinor/neqsim/neqsim-field-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00061 | $0.05379 |
| Opus 5.5 | $0.00024 | $0.02152 |
| Sonnet 5.5 | $0.00012 | $0.01076 |
| Haiku 4.5 | $0.00006 | $0.00538 |
Grade A, and why
neqsim-field-development 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 5d 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 — 496 lines — stays where its author put it; the contents beside it link to each section on GitHub.
NeqSim Field Development Skill
Comprehensive reference for oil & gas field development using NeqSim's field development framework. Covers the full lifecycle from discovery through decommissioning, with emphasis on concept selection, production forecasting, economics, and risk assessment.
Field Development Lifecycle (Decision Gates)
| Phase | Decision Gate | Fidelity | Accuracy | NeqSim Focus |
|---|---|---|---|---|
| Discovery | — | SCREENING | ±50% | Volumetrics, PVT lab, analogs |
| Feasibility | DG1 | SCREENING | ±50% | Flow assurance screening, cost correlations, Arps decline |
| Concept Select | DG2 | CONCEPTUAL | ±30% | EOS tuning, IPR/VLP, process simulation, concept ranking |
| FEED | DG3/DG4 | DETAILED | ±20% | Full process model, reservoir coupling, Monte Carlo NPV |
| Operations | — | DETAILED | ±10% | History matching, debottlenecking, optimization |
| Late Life | — | DETAILED | ±20% | IOR/EOR, recompletion, decommissioning cost |
Workflow Orchestration
FieldDevelopmentWorkflow workflow = new FieldDevelopmentWorkflow("Field Name");
workflow.setStudyPhase(StudyPhase.FEASIBILITY);
workflow.setFidelityLevel(FidelityLevel.SCREENING);
// Set reservoir
ReservoirInput reservoir = new ReservoirInput();
reservoir.setFluidType("gas_condensate");
reservoir.setGIIP(1.5e9); // Sm3
reservoir.setReservoirPressure(350.0); // bara
reservoir.setReservoirTemperature(95.0); // °C
reservoir.setRecoveryFactor(0.65);
workflow.setReservoirInput(reservoir);
// Set wells
WellsInput wells = new WellsInput();
wells.setNumberOfProducers(4);
wells.setWaterDepth(350.0);
wells.setTotalDepth(3800.0);
workflow.setWellsInput(wells);
// Set infrastructure
InfrastructureInput infra = new InfrastructureInput();
infra.setDevelopmentType("subsea_tieback");
infra.setTiebackDistance(25.0); // km
workflow.setInfrastructureInput(infra);
// Run
WorkflowResult result = workflow.run();
Key Result Classes
| Class | Key Fields |
|---|---|
WorkflowResult |
npvMUSD, irrPercent, paybackYears, totalCapexMUSD, totalOpexMUSD, totalPowerMW, co2IntensityKgPerBoe |
ConceptKPIs |
Same as WorkflowResult + concept-level metrics |
CashFlowResult |
Year-by-year revenue, opex, capex, tax, net_cash_flow, cumulative_dcf |
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.
- 5d ago Changed · +39 lines f82eea1fdb1b
- 6d ago Changed · +9 lines a5139363e4a4
- 1mo ago First seen · 448 lines · 61 tokens per session scan A cdc412731f4e
neqsim-field-development is a skill published in the GitHub repository equinor/neqsim (156 stars, last pushed today), licensed Apache-2.0. It adds 61 tokens to every session and 5,379 once invoked, about $0.0002 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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