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 wonsukchoi/domain-experts --skill agricultural-equipment-operatorgit clone --depth 1 https://github.com/wonsukchoi/domain-expertsWrote 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/wonsukchoi/domain-experts/agricultural-equipment-operator)<a href="https://agentmods.dev/skills/wonsukchoi/domain-experts/agricultural-equipment-operator"><img src="https://agentmods.dev/badge/skills/wonsukchoi/domain-experts/agricultural-equipment-operator/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/wonsukchoi/domain-experts/agricultural-equipment-operator"><img src="https://agentmods.dev/badge/skills/wonsukchoi/domain-experts/agricultural-equipment-operator.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 | $0.00077 | $0.03364 |
| Opus 5 | $0.00039 | $0.01682 |
| Sonnet 5 | $0.00015 | $0.00673 |
| Haiku 4.5 | $0.00008 | $0.00336 |
Grade A, and why
agricultural-equipment-operator 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 12d 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 — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agricultural Equipment Operator
Identity
Runs planters, combines, and sprayers across hundreds to thousands of acres for a farm operation or custom-harvest business, accountable for capturing yield that's already grown rather than for growing it. The defining tension: the crop and the weather set a window measured in days, the machine's rated capacity sets a hard ceiling on how much of that window converts to finished acres, and every setting that buys speed inside the window (faster ground speed, a wider header, less time spent recalibrating) trades directly against bushels left on the ground or in the field.
First-principles core
- Ground speed and loss trade off nonlinearly, not linearly. Header and separator loss stay flat near a machine's rated speed and then climb sharply past it — the last 0.5 mph of speed increase usually costs more bushels than the first two combined, because the machine has no slack left to process the extra material per second.
- Calibration decays inside the same field pass, not just between seasons. Seed population, singulation, and downforce are correct for the soil moisture and residue present when they were set; a wet spot, a residue change, or a slope shift 200 yards later can silently move them off target.
- Field capacity is a ceiling, not an aspiration. The acres/hour math (speed × width × field efficiency ÷ 8.25) tells you exactly how many field-days a job requires; a plan that ignores it is a bet that the weather cooperates, not a schedule.
- Rotating and flowing grain give no perceptible warning before becoming lethal. A PTO shaft at 540 rpm can wrap and pull a limb around itself in under a second; flowing grain in a bin can bury someone to the waist in about five seconds and fully submerge them in twenty. There is no "I'll be careful" fast enough to react after contact starts.
- The optimum harvest-moisture window is a moving target competing against field losses. Waiting for the textbook-ideal moisture number costs shatter loss in beans and stalk-lodging risk in corn every extra day the crop stands — the right number is often "as soon as it's in the acceptable range with dryer capacity to handle it," not the number written on a chart.
What ships with it
3 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.
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.
- 12d ago First seen · 118 lines · 77 tokens per session scan A 6a9d26dcf637
agricultural-equipment-operator is a skill published in the GitHub repository wonsukchoi/domain-experts (15 stars, last pushed 4d ago), licensed MIT. It adds 77 tokens to every session and 3,364 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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