ampl-energy

ampl-energy is a skill for Claude Code, Codex from marcos-dv/ampl-agents. It costs 89 tokens per session (3,447 once invoked), scanned A, original, MIT.

A modeling skill for electric power and energy systems in AMPL, a language for describing optimization problems. It covers tasks such as deciding how power plants run, planning grid investments, and scheduling batteries or hydroelectric resources.

In plain words
What is it for?
Use it to build or review models for unit commitment, power flow, capacity expansion, battery storage, hydrothermal scheduling, and energy markets.
Why use it?
It helps express energy-system rules in readable mathematical models and match the model type with an appropriate solver.

Skill for Claude CodeCodex

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

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is Always-on constraints ([verified solve](../../rules/ampl-verified-solve.md), [model structure](../../rules/ampl-model-structure.md), [verified references](../...

Good fit Use it to build or review models for unit commitment, power flow, capacity expansion, battery storage, hydrothermal scheduling, and energy markets.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/marcos-dv/ampl-agents
agentmods
npx agentmods add skills/marcos-dv/ampl-agents/ampl-energy

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 ampl-energy

README.md
[![agentmods](https://agentmods.dev/badge/skills/marcos-dv/ampl-agents/ampl-energy/github.svg)](https://agentmods.dev/skills/marcos-dv/ampl-agents/ampl-energy)
Your own site
<a href="https://agentmods.dev/skills/marcos-dv/ampl-agents/ampl-energy"><img src="https://agentmods.dev/badge/skills/marcos-dv/ampl-agents/ampl-energy/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 ampl-energy

Your own site · 80×15
<a href="https://agentmods.dev/skills/marcos-dv/ampl-agents/ampl-energy"><img src="https://agentmods.dev/badge/skills/marcos-dv/ampl-agents/ampl-energy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 89 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,447 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00089 $0.03447
Opus 5 $0.00044 $0.01724
Sonnet 5 $0.00018 $0.00689
Haiku 4.5 $0.00009 $0.00345

Measured 12d ago against content hash b70ff6db75e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

ampl-energy scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

IF you have internet access (WebFetch, browser, or curl):
skills/ampl-energy/SKILL.md · 393 lines

How it starts

The opening of the file, as written. The whole thing — 393 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AMPL Energy Skill

Always-on constraints (verified solve, model structure, verified references) live in rules/ and apply whenever this skill is active.

Mission

You model energy and power systems in AMPL with clear, readable constraints — often using logical operators and MP reformulation rather than opaque big-M spreadsheets. You cover linear, MIP, conic, and nonlinear (MINLP/NLP) formulations as appropriate. You leverage AMPL's efficient instantiation of multi-period, multi-unit, and network-indexed models.

You recommend solvers and tuning for large MIPs (unit commitment) and nonlinear OPF. You align with verified Colab electric-power notebooks when citing examples.


Code examples convention

Every snippet lists Preferred: amplpy first, then Pure AMPL. Put model structure in model.mod + ampl.read().


Environment

Assume amplpy is installed and licensed — delegate setup to ampl-installer if not.

from amplpy import AMPL
ampl = AMPL()

Energy MIPs often need gurobi, xpress cplex or copt; MINLP UC may need knitro, gurobi or xpress; conic models may need mosek — request matching modules via ampl-installer.


Solver classification (commercial vs open-source)

Sources: https://dev.ampl.com/solvers/index.html , https://dev.ampl.com/ampl/python/modules.html

Open-source: HiGHS (LP/MIP prototype), SCIP (MIP), and for nonlinear problems Ipopt/Bonmin/Couenne via coin.

Commercial (typical for production energy):

Solver Energy use
gurobi, xpress, cplex Unit commitment MIP, large transmission MIP
mosek, copt Conic hydrothermal, SOCP relaxations
knitro MINLP UC with nonlinear heat rates (Colab UC MINLP notebook)

NEOS: gokestrel on Colab for trials without local commercial license.

Read the full file on GitHub · 393 lines

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. 12d ago First seen · 393 lines · 89 tokens per session scan A b70ff6db75e8

Subscribe to this mod's changes

ampl-energy is a skill published in the GitHub repository marcos-dv/ampl-agents (10 stars, last pushed 21d ago), licensed MIT. It adds 89 tokens to every session and 3,447 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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