pyomo

pyomo is a skill for Claude Code from tondevrel/scientific-agent-skills. It costs 110 tokens per session (2,710 once invoked), scanned A, original, MIT.

A Python framework for describing mathematical optimization problems, where software chooses the best use of limited resources under rules. It supports linear, integer, and nonlinear models and can send them to different solver programs.

In plain words
What is it for?
Use it for resource allocation, investment planning, energy scheduling, supply chains, process engineering, uncertain scenarios, and other problems involving objectives, variables, and constraints.
Why use it?
It separates the problem description from the solver, so the same model can be tested with different solving engines without rewriting the model.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the scientific-agent-skills plugin — 55 skills, 2 commands, 1 MCP server shipped together

Good fit Use it for resource allocation, investment planning, energy scheduling, supply chains, process engineering, uncertain scenarios, and other problems involving objectives, variables, and constraints.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tondevrel/scientific-agent-skills/pyomo
Install

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.

Any agent
npx skills add tondevrel/scientific-agent-skills --skill pyomo
Clone the repo
git clone --depth 1 https://github.com/tondevrel/scientific-agent-skills

Made for: Claude Code.

Or install scientific-agent-skills, the plugin that ships this one along with the rest of its 55 skills, 2 commands, 1 MCP server.

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 pyomo

README.md
[![agentmods](https://agentmods.dev/badge/skills/tondevrel/scientific-agent-skills/pyomo/github.svg)](https://agentmods.dev/skills/tondevrel/scientific-agent-skills/pyomo)
Your own site
<a href="https://agentmods.dev/skills/tondevrel/scientific-agent-skills/pyomo"><img src="https://agentmods.dev/badge/skills/tondevrel/scientific-agent-skills/pyomo/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 pyomo

Your own site · 80×15
<a href="https://agentmods.dev/skills/tondevrel/scientific-agent-skills/pyomo"><img src="https://agentmods.dev/badge/skills/tondevrel/scientific-agent-skills/pyomo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 110 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,710 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00110 $0.02710
Opus 5 $0.00055 $0.01355
Sonnet 5 $0.00022 $0.00542
Haiku 4.5 $0.00011 $0.00271

Measured 10d ago against content hash 777df62df390, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

pyomo 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 10d 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.

skills/pyomo/SKILL.md · 308 lines

How it starts

The opening of the file, as written. The whole thing — 308 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pyomo - Mathematical Optimization Modeling

Pyomo allows you to define optimization problems using a natural mathematical syntax (Sets, Parameters, Variables, Constraints). It decouples the model from the solver, allowing the same model to be solved by different engines without code changes.

FIRST: Verify Prerequisites

pip install pyomo
# Also install a solver (e.g., GLPK for linear/integer problems)
# Conda: conda install -c conda-forge glpk ipopt

When to Use

  • Strategic Planning: Long-term resource allocation or investment planning.
  • Process Engineering: Optimizing chemical plants or refinery operations (Non-linear).
  • Energy Systems: Power grid dispatch and unit commitment problems.
  • Supply Chain Optimization: Multi-period, multi-commodity flow problems.
  • Non-Linear Programming (NLP): When your constraints or objectives involve smooth curves (e.g., x², log(x)).
  • Stochastic Programming: Modeling uncertainty in optimization.
  • Custom Solver Integration: When you need to use specific solvers like IPOPT, SCIP, or Baron.

Reference Documentation

Official docs: http://www.pyomo.org/
GitHub: https://github.com/Pyomo/pyomo
Search patterns: pyo.ConcreteModel, pyo.Constraint, pyo.Objective, pyo.SolverFactory

Core Principles

Concrete vs. Abstract Models

  • ConcreteModel: Data is defined at the time the model is built (most common in Python/Data Science).
  • AbstractModel: The structure is defined first, and data is loaded later (standard for large-scale industrial models).

Components

  • Var: Unknowns the solver needs to find.
  • Set/Param: Data that defines the problem instance.
  • Objective: The function to minimize or maximize.
  • Constraint: Rules the variables must follow.

Solvers

Pyomo does not have its own solver. It requires external solvers (like glpk for LP/MIP or ipopt for NLP) installed on the system.

Quick Reference

Installation

pip install pyomo
# Also install a solver (e.g., GLPK for linear/integer problems)
# Conda: conda install -c conda-forge glpk ipopt

Read the full file on GitHub · 308 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. 10d ago First seen · 308 lines · 110 tokens per session scan A 777df62df390

Subscribe to this mod's changes

pyomo is a skill published in the GitHub repository tondevrel/scientific-agent-skills (21 stars, last pushed 7mo ago), licensed MIT. It adds 110 tokens to every session and 2,710 once invoked, about $0.0006 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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