game-theory

game-theory is a skill for Claude Code from ironyjk/strategy-frameworks. It costs 42 tokens per session (4,189 once invoked), scanned A, original, MIT.

A business strategy method for analysing situations where companies, customers, or regulators affect one another's choices. It uses ideas such as the Prisoner's Dilemma and Nash equilibrium, which describe stable outcomes when each participant responds to the others.

In plain words
What is it for?
Use it to examine pricing, market entry, competition, regulation, cooperation between rivals, commitment strategies, and other decisions involving several decision-makers.
Why use it?
It gives a structured way to think about competitors' likely actions and the results of different choices. This can clarify trade-offs when information, incentives, and possible cooperation are involved.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Part of the strategy-frameworks plugin — 27 skills shipped together

Good fit Use it to examine pricing, market entry, competition, regulation, cooperation between rivals, commitment strategies, and other decisions involving several decision-makers.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ironyjk/strategy-frameworks/game-theory
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 ironyjk/strategy-frameworks --skill game-theory
Clone the repo
git clone --depth 1 https://github.com/ironyjk/strategy-frameworks

Made for: Claude Code.

Or install strategy-frameworks, the plugin that ships this one along with the rest of its 27 skills.

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 game-theory

README.md
[![agentmods](https://agentmods.dev/badge/skills/ironyjk/strategy-frameworks/game-theory.svg)](https://agentmods.dev/skills/ironyjk/strategy-frameworks/game-theory)
Your own site
<a href="https://agentmods.dev/skills/ironyjk/strategy-frameworks/game-theory"><img src="https://agentmods.dev/badge/skills/ironyjk/strategy-frameworks/game-theory.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,189 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 $0.00042 $0.04189
Opus 5 $0.00021 $0.02094
Sonnet 5 $0.00008 $0.00838
Haiku 4.5 $0.00004 $0.00419

Measured 8d ago against content hash 73c0b18467b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

game-theory 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 8d 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.

game-theory/SKILL.md · 436 lines

How it starts

The opening of the file, as written. The whole thing — 436 lines — stays where its author put it; the contents beside it link to each section on GitHub.

🎯 Game Theory for Business Strategy (게임이론 전략 분석)

Analyze competitive interactions, predict rival behavior, and design winning strategies using game theory frameworks.


1. Core Concepts (핵심 개념)

Every strategic interaction can be decomposed into five elements:

Element Description Example
Players (플레이어) Decision-makers in the game Firms, regulators, customers
Strategies (전략) Available actions for each player Price high/low, enter/stay out
Payoffs (보수) Outcomes for each strategy combination Profit, market share, reputation
Information (정보) What each player knows when deciding Costs, demand, rival's move
Equilibrium (균형) Stable outcome where no one wants to deviate Nash Equilibrium

Information Types

  • Perfect information (완전정보): All previous moves are observable (chess)
  • Imperfect information (불완전정보): Some moves are hidden (poker)
  • Complete information (완비정보): All payoffs are common knowledge
  • Incomplete information (불완비정보): Some payoffs are private (costs, willingness to pay)

2. Classic Games (고전 게임)

2.1 🔒 Prisoner's Dilemma (죄수의 딜레마)

The most famous game in theory. Individual rationality leads to collective irrationality.

                    Player B
                 Cooperate    Defect
              ┌───────────┬───────────┐
  Cooperate   │  (3, 3)   │  (0, 5)   │
Player A      ├───────────┼───────────┤
  Defect      │  (5, 0)   │  (1, 1)*  │
              └───────────┴───────────┘
                              * = Nash Equilibrium

Dominant strategy: Both defect, even though mutual cooperation yields higher payoffs.

Business applications:

  • Price wars (가격전쟁): Two firms cutting prices until margins collapse
  • Advertising arms races (광고 경쟁): Both spend heavily, neither gains share
  • R&D investment: Overinvest to avoid falling behind
  • Environmental compliance: Pollute if rival pollutes (race to the bottom)

Read the full file on GitHub · 436 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. 8d ago First seen · 436 lines · 42 tokens per session scan A 73c0b18467b1

Subscribe to this mod's changes

game-theory is a skill published in the GitHub repository ironyjk/strategy-frameworks (11 stars, last pushed 4mo ago), licensed MIT. It adds 42 tokens to every session and 4,189 once invoked, about $0.0002 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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