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-surf-field-layout-designgit 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-surf-field-layout-design)<a href="https://agentmods.dev/skills/equinor/neqsim-community-skills/neqsim-surf-field-layout-design"><img src="https://agentmods.dev/badge/skills/equinor/neqsim-community-skills/neqsim-surf-field-layout-design/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-surf-field-layout-design"><img src="https://agentmods.dev/badge/skills/equinor/neqsim-community-skills/neqsim-surf-field-layout-design.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 | $0.04661 |
| Opus 5.5 | $0.00048 | $0.01864 |
| Sonnet 5.5 | $0.00024 | $0.00932 |
| Haiku 4.5 | $0.00012 | $0.00466 |
Grade A, and why
neqsim-surf-field-layout-design 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.
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 — 358 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SURF Field Layout Design
Use this skill to turn a well count, a reservoir footprint and a water depth into a placed and routed subsea layout: drill centres, wells, Xmas trees, templates and manifolds, PLEMs, riser bases, the host, and every flowline, riser and umbilical between them — each line sized on velocity and each item carrying a latitude and longitude so the result drops straight into a map or a GIS.
It is the design counterpart to neqsim-subsea-layout-geometry, which screens a
layout that already exists. Use this skill first to create the layout, then that
skill to screen step-outs, and neqsim-pipe-route-profile to put the routes on a
real seabed profile.
When to Use
- A concept study needs a subsea architecture before any layout drawing exists.
- The number of drill centres, templates and Xmas trees must follow from the well count and the slots per template.
- The host has to be placed relative to the field, and the riser base with it.
- A flowline architecture must be chosen: a round-trip-piggable dual loop, one dedicated line per drill centre, or a daisy chain.
- Flowline, riser and injection-line sizes are needed at a screening level.
- Total flowline, riser and umbilical lengths are needed for a SURF cost estimate.
- The layout must be georeferenced — on a licence block, on a map, as GeoJSON.
- A production-network or flow-assurance model needs node positions and segment lengths.
Do not use it for detailed routing, crossing design, on-bottom stability, free-span, expansion, installation or mooring analysis.
Inputs
| Group | Fields |
|---|---|
| Identity and position | field_name, centre_latitude_deg, centre_longitude_deg, water_depth_m |
| Wells | producers, water_injectors, gas_injectors, slots_per_template, slot_spacing_m |
| Footprint | reservoir_length_km, reservoir_width_km, field_axis_bearing_deg, injector_offset_km, seabed_slope_deg |
| Host | host_type, host_offset_km, host_bearing_deg, riser_base_offset_m |
| Architecture | production_architecture (dual_loop, single_line, daisy_chain) |
| Sizing | design_liquid_rate_m3_per_s, design_water_injection_rate_m3_per_s, design_gas_injection_rate_am3_per_s, densities, target velocities |
What ships with it
18 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/design_barents_style_layout.py 3.0 KB runs code
- examples/layout_map.png 206 KB
- examples/layout.geojson 24 KB
- examples/layout.json 25 KB
- pyproject.toml 666 B
- README.md 2.2 KB
- src/surf_field_layout_design/__init__.py 2.9 KB runs code
- src/surf_field_layout_design/geo.py 7.6 KB runs code
- src/surf_field_layout_design/geodata.py 11 KB runs code
- src/surf_field_layout_design/illustration.py 20 KB runs code
- src/surf_field_layout_design/layout.py 25 KB runs code
- src/surf_field_layout_design/plot.py 3.7 KB runs code
- src/surf_field_layout_design/plot3d.py 8.3 KB runs code
- src/surf_field_layout_design/wells.py 8.0 KB runs code
- tests/test_illustration.py 6.0 KB runs code
- tests/test_surf_field_layout_design.py 9.6 KB runs code
- tests/test_surf_layout_plot.py 889 B runs code
- tests/test_wells_and_3d.py 4.9 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.
- 11d ago Changed · +3 lines 27a5cbbb813d
- 1mo ago Changed · -100 tokens per session 72dea0906ac6
- 1mo ago First seen · 355 lines · 220 tokens per session scan A 859f1382c215
neqsim-surf-field-layout-design is a skill published in the GitHub repository equinor/neqsim-community-skills (4 stars, last pushed today), licensed Apache-2.0. It adds 120 tokens to every session and 4,661 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.
neqsim-surf-field-layout-design compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| neqsim-surf-field-layout-designequinor/neqsim-community-skills | Skill | 4 | today | Apache-2.0 | A | 120 | Claude Code, Codex |
| instrument-data-to-allotropeanthropics/knowledge-work-plugins | Skill | 35k | 3d ago | Apache-2.0 | A | 123 | Claude Code |
| exploratory-data-analysisK-Dense-AI/scientific-agent-skills | Skill | 56k | 4d ago | MIT | A | 83 | Claude Code |
| matlabK-Dense-AI/scientific-agent-skills | Skill | 56k | 4d ago | MIT | A | 44 | Claude Code |
| phylogeneticsK-Dense-AI/scientific-agent-skills | Skill | 56k | 4d ago | MIT | A | 71 | Claude Code, Codex |
| research-engineerdavila7/claude-code-templates | Skill | 33k | yesterday | MIT | A | 43 | Claude Code, Codex |
| mapping-to-snomedmaziyarpanahi/openmed | Skill | 5.8k | yesterday | Apache-2.0 | A | 205 | Claude Code |