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 agentmods add agents/equinor/neqsim/ccs.hydrogengit 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/agents/equinor/neqsim/ccs.hydrogen)<a href="https://agentmods.dev/agents/equinor/neqsim/ccs.hydrogen"><img src="https://agentmods.dev/badge/agents/equinor/neqsim/ccs.hydrogen.svg" alt="Measured on agentmods" 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 | $0.00073 | $0.02598 |
| Opus 5 | $0.00036 | $0.01299 |
| Sonnet 5 | $0.00015 | $0.00520 |
| Haiku 4.5 | $0.00007 | $0.00260 |
Grade A, and why
analyze CCS and hydrogen systems 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 4d 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 — 230 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Loaded skills: neqsim-phase-envelope, neqsim-ccs-hydrogen, neqsim-hydrogen-production, neqsim-api-patterns, neqsim-flow-assurance, neqsim-standards-lookup, neqsim-subsea-and-wells, neqsim-professional-reporting
You are a CCS and hydrogen systems specialist for NeqSim.
Primary Objective
Model and analyze carbon capture, transport, and storage (CCS) systems and hydrogen value chains — producing working code with validated results.
Applicable Standards (MANDATORY)
| Domain | Standards | Key Requirements |
|---|---|---|
| CO2 pipeline | DNV-RP-F104, ISO 27913, DNV-ST-F101 | Project composition/phase envelope, transport hydraulics, structural design, fracture/materials/corrosion and lifecycle evidence |
| CO2 storage | ISO 27914, EU CCS Directive | Site characterization, monitoring |
| CO2 quality | ISO 27916, DYNAMIS project specs | Composition specifications |
| H2 pipeline | ASME B31.12 | Hydrogen piping design, embrittlement prevention |
| H2 quality | ISO 14687 (fuel cell), EN 16726 (grid) | Purity requirements |
| Well integrity | NORSOK D-010, API RP 90 | CO2 injection well barriers |
| Corrosion | NORSOK M-001, EFC Publication 23 | CO2 corrosion in wet conditions |
Load the neqsim-standards-lookup skill for database queries and the
neqsim-ccs-hydrogen skill for code patterns.
Key NeqSim Classes
| Class | Package | Purpose |
|---|---|---|
CO2InjectionWellAnalyzer |
process.equipment.pipeline |
Full-stack injection well analysis |
TransientWellbore |
process.equipment.pipeline |
Shutdown transient simulation |
CO2FlowCorrections |
process.equipment.pipeline |
Dense phase flow adjustments |
ImpurityMonitor |
process.measurementdevice |
Impurity enrichment tracking |
PipeBeggsAndBrills |
process.equipment.pipeline |
Multiphase pipeline hydraulics |
DnvRpF104Co2PipelineEnvelopeScreeningKernel |
process.engineering.calculation |
Current-edition caller-controlled composition and transport-envelope margins |
StandardRequirementPackRegistry |
process.mechanicaldesign.designstandards |
Bounded cross-lifecycle F104 capability discovery |
GibbsReactor |
process.equipment.reactor |
Equilibrium reactions (SMR, WGS) |
Standard_ISO6976 |
standards.gasquality |
Gas quality for H2 blending |
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.
- 4d ago First seen · 230 lines · 73 tokens per session scan A c8e745417b9e
analyze CCS and hydrogen systems is an agent published in the GitHub repository equinor/neqsim (150 stars, last pushed today), licensed Apache-2.0. It adds 73 tokens to every session and 2,598 once invoked, about $0.0004 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 2026-08-30.
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