negotiation-game-theory

negotiation-game-theory is a skill for Claude Code from fatihguner/foreman. It costs 91 tokens per session (4,665 once invoked), scanned A, original, MIT.

A mathematical approach to negotiation that models each side's minimum acceptable result, the value created by agreement, and the possible deal range.

In plain words
What is it for?
Use it to prepare for fundraising, sales, purchasing, partnerships, and other negotiations where terms and trade-offs must be calculated.
Why use it?
It replaces guesswork about concessions and walk-away points with a structured way to assess the choices available to both sides.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the foreman plugin — 142 skills, 60 commands, 7 agents shipped together

Good fit Use it to prepare for fundraising, sales, purchasing, partnerships, and other negotiations where terms and trade-offs must be calculated.

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

Made for: Claude Code.

Or install foreman, the plugin that ships this one along with the rest of its 142 skills, 60 commands, 7 agents.

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 negotiation-game-theory

README.md
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Your own site
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Per session 91 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,665 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 $0.00091 $0.04665
Opus 5 $0.00046 $0.02332
Sonnet 5 $0.00018 $0.00933
Haiku 4.5 $0.00009 $0.00466

Measured 5d ago against content hash a3506c0076d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

negotiation-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 5d 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.

plugins/foreman/skills/negotiation-game-theory/SKILL.md · 259 lines

How it starts

The opening of the file, as written. The whole thing — 259 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Read runtime and advisory rules before applying this skill. Other Foreman layers and the catalog are in ../../content/, relative to this SKILL.md.

Negotiation Game Theory

Every negotiator has a mathematical bottom line -- the minimum outcome they will accept before walking away. Most never calculate it. They arrive at the table armed with aspirations and anxiety, anchoring on round numbers or gut feelings, when the strategic structure of the negotiation is already fully determined by three quantities: what each side gets if the deal fails, what the deal creates if it succeeds, and how each side values incremental gains. Finding the other party's bottom line -- their true minimum acceptable outcome -- is worth more than any persuasion technique, any rapport-building exercise, any tactical concession. The relationship-based approach taught by Fisher and Ury (see Win-Win Negotiation) handles the human dynamics superbly. This skill addresses the strategic geometry underneath.


The Framework

Negotiation as a Cooperative Game

A negotiation between two parties, A and B, is a cooperative game with a specific structure. If the negotiation succeeds, it produces a total payoff that exceeds what either party could achieve alone. If it fails, each party falls back to their standalone value -- what they can earn without the other.

Three values define every negotiation:

Variable Meaning Example (Series A Fundraise)
Total deal value What the cooperation produces $20M company valuation created by capital + execution
A's standalone value What A gets if the deal fails Founder bootstraps at $2M valuation growth/year
B's standalone value What B gets if the deal fails Investor deploys capital elsewhere at 15% expected return

The fundamental precondition for any negotiation: the deal must create surplus. The total deal value must exceed the sum of both parties' standalone values. If it does not, there is nothing to negotiate -- both sides are better off walking away. This seems obvious, yet founders regularly enter negotiations where no surplus exists (the investor's alternative returns exceed what the startup can plausibly deliver, or the customer's internal solution outperforms the vendor's offering).

Read the full file on GitHub · 259 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. 5d ago First seen · 259 lines · 91 tokens per session scan A a3506c0076d9

Subscribe to this mod's changes

negotiation-game-theory is a skill published in the GitHub repository fatihguner/foreman (50 stars, last pushed 6d ago), licensed MIT. It adds 91 tokens to every session and 4,665 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 2026-09-06.

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