s4h-economics

s4h-economics is a skill for Claude Code from human-avatar/skills-for-humanity. It costs 95 tokens per session (1,532 once invoked), scanned A, original, MIT.

A toolkit for using economic reasoning to examine incentives, trade-offs, outside effects, and group coordination.

In plain words
What is it for?
Use it to choose the right analysis for questions about costs, incentives, cooperation, or the effects of a decision on others.
Why use it?
It helps explain why people or organisations make choices that can produce poor results for everyone involved.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: names the AskUserQuestion tool.

Part of the skills-for-humanity plugin — 197 skills, 1 hook shipped together

Good fit Use it to choose the right analysis for questions about costs, incentives, cooperation, or the effects of a decision on others.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/human-avatar/skills-for-humanity/s4h-economics
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 human-avatar/skills-for-humanity --skill s4h-economics
Clone the repo
git clone --depth 1 https://github.com/human-avatar/skills-for-humanity

Made for: Claude Code.

Or install skills-for-humanity, the plugin that ships this one along with the rest of its 197 skills, 1 hook.

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 s4h-economics

README.md
[![agentmods](https://agentmods.dev/badge/skills/human-avatar/skills-for-humanity/s4h-economics/github.svg)](https://agentmods.dev/skills/human-avatar/skills-for-humanity/s4h-economics)
Your own site
<a href="https://agentmods.dev/skills/human-avatar/skills-for-humanity/s4h-economics"><img src="https://agentmods.dev/badge/skills/human-avatar/skills-for-humanity/s4h-economics/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 s4h-economics

Your own site · 80×15
<a href="https://agentmods.dev/skills/human-avatar/skills-for-humanity/s4h-economics"><img src="https://agentmods.dev/badge/skills/human-avatar/skills-for-humanity/s4h-economics.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,532 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. 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 $0.00095 $0.01532
Opus 5 $0.00048 $0.00766
Sonnet 5 $0.00019 $0.00306
Haiku 4.5 $0.00010 $0.00153

Measured 9d ago against content hash e9ed7cdea2d4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

s4h-economics 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 9d 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/s4h-economics/SKILL.md · 100 lines

How it starts

The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Economics

Applies economic reasoning to decisions, organisations, and systems. Diagnoses what kind of analysis is needed and routes to the right tool. Economics is not just about money — it is about how incentives shape behaviour, how choices foreclose alternatives, and why individually rational actors so often produce collectively irrational outcomes.

Which tool fits

You need to... Tool
Map what you're actually giving up by choosing this opportunity-cost
Understand who benefits, who pays, and what behaviours follow incentive-mapping
Identify costs or benefits falling on parties outside the decision externalities
Apply the logic of the next unit — sunk costs, average vs. marginal margin
Diagnose why rational individuals keep producing bad collective outcomes coordination

Routing Decision

Framing check: Confirm the situation before routing. State what you've identified — the core economic question and what's at stake — in one sentence, then use AskUserQuestion:

  • Question: "I'm reading this as: [your one-sentence framing of the economic situation and the core question]. Is that right?"

  • Header: "Framing"

  • Options:

    • Yes — proceed — framing is correct
    • Adjust — one element is off; user will correct it before you continue
    • Reframe — different situation than read; incorporate the correction before proceeding
  • Evaluating a choice and want to understand the full cost, including what's foregone → opportunity-cost

  • Trying to understand or change how people behave — who's being rewarded for what → incentive-mapping

  • Decision or policy has effects on parties who aren't in the room → externalities

  • Decision involves how much to do: more, less, expand, cut — or sunk cost reasoning → margin

  • A group keeps failing to cooperate even though cooperation would benefit everyone → coordination

  • Unclear → incentive-mapping; almost every economic question eventually becomes a question about incentives

Read the full file on GitHub · 100 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. 9d ago First seen · 100 lines · 95 tokens per session scan A e9ed7cdea2d4

Subscribe to this mod's changes

s4h-economics is a skill published in the GitHub repository human-avatar/skills-for-humanity (223 stars, last pushed 1mo ago), licensed MIT. It adds 95 tokens to every session and 1,532 once invoked, about $0.0005 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 2026-09-03.

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