munger-worldly-wisdom

munger-worldly-wisdom is a skill for Claude Code from curiositech/some_claude_skills. It costs 72 tokens per session (2,567 once invoked), scanned A, original, MIT.

A decision-making skill based on mental models from psychology, economics, mathematics, and science. It is designed for evaluating businesses, strategy, incentives, and long-term investments.

In plain words
What is it for?
Use it for investment decisions, business strategy, competitive-advantage analysis, incentive design, and long-term capital-allocation questions.
Why use it?
It helps people compare complex choices, notice cognitive biases, and reject opportunities they cannot understand well enough.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it for investment decisions, business strategy, competitive-advantage analysis, incentive design, and long-term capital-allocation questions.

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Install with agentmods
npx agentmods add skills/curiositech/some_claude_skills/munger-worldly-wisdom
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 curiositech/some_claude_skills --skill munger-worldly-wisdom
Clone the repo
git clone --depth 1 https://github.com/curiositech/some_claude_skills

Made for: Claude Code.

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 munger-worldly-wisdom

README.md
[![agentmods](https://agentmods.dev/badge/skills/curiositech/some_claude_skills/munger-worldly-wisdom/github.svg)](https://agentmods.dev/skills/curiositech/some_claude_skills/munger-worldly-wisdom)
Your own site
<a href="https://agentmods.dev/skills/curiositech/some_claude_skills/munger-worldly-wisdom"><img src="https://agentmods.dev/badge/skills/curiositech/some_claude_skills/munger-worldly-wisdom/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 munger-worldly-wisdom

Your own site · 80×15
<a href="https://agentmods.dev/skills/curiositech/some_claude_skills/munger-worldly-wisdom"><img src="https://agentmods.dev/badge/skills/curiositech/some_claude_skills/munger-worldly-wisdom.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,567 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 $0.00072 $0.02567
Opus 5 $0.00036 $0.01283
Sonnet 5 $0.00014 $0.00513
Haiku 4.5 $0.00007 $0.00257

Measured 8d ago against content hash 08ca185124ee, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

munger-worldly-wisdom 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.

.claude/skills/munger-worldly-wisdom/SKILL.md · 233 lines

How it starts

The opening of the file, as written. The whole thing — 233 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Munger Worldly Wisdom

Apply multidisciplinary mental models to make few, high-conviction decisions within your circle of competence.

When to Use

✅ Use for: Investment decisions, business strategy, complex problem-solving, evaluating competitive advantages, designing incentive systems, long-term capital allocation, avoiding cognitive biases ❌ NOT for: High-frequency trading, technical analysis, single-discipline academic research, speculative opportunities outside competence, situations requiring immediate action without analysis

Core Process

Investment Decision Tree

1. Three-Basket Screen
   ├─ Can I understand this business deeply?
   │  ├─ NO → Reject immediately (pharmaceuticals, complex tech)
   │  ├─ TOO COMPLEX → Reject immediately 
   │  └─ YES → Continue to step 2
   │
2. Competitive Moat Assessment
   ├─ Does it have durable competitive advantages?
   │  ├─ Brand strength → Assess psychological lock-in
   │  ├─ Scale economies → Calculate cost advantage
   │  ├─ Network effects → Evaluate switching costs
   │  ├─ Regulatory protection → Check durability
   │  └─ NO MOAT → Reject (commodity business)
   │
3. Business Quality Check
   ├─ Will productivity improvements stay with owners or flow to customers?
   │  ├─ FLOW TO CUSTOMERS → Reject (textile trap)
   │  └─ STAY WITH OWNERS → Continue
   │
4. Intrinsic Value vs. Market Price
   ├─ Calculate free cash flow (not reported earnings)
   ├─ Assess whole business value
   ├─ Does intrinsic value significantly exceed price?
   │  ├─ NO → Wait (no margin of safety)
   │  └─ YES → Continue to step 5
   │
5. Psychological Checklist
   ├─ Am I being influenced by incentive-caused bias?
   ├─ Is social proof driving my judgment?
   ├─ Am I victim of consistency principle (defending past decision)?
   ├─ Could lollapalooza effect (multiple forces) be creating misjudgment?
   │  └─ ANY YES → Re-evaluate objectively
   │
6. Opportunity Cost Comparison
   ├─ Is this the best use of capital vs. alternatives?
   │  ├─ NO → Wait for better opportunity
   │  └─ YES → Continue to step 7
   │
7. Action Decision
   └─ Do ALL factors align perfectly?
      ├─ NO → Do nothing (sit on ass)
      └─ YES → Commit large percentage of capital, hold with zero turnover

Read the full file on GitHub · 233 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 · 233 lines · 72 tokens per session scan A 08ca185124ee

Subscribe to this mod's changes

munger-worldly-wisdom is a skill published in the GitHub repository curiositech/some_claude_skills (221 stars, last pushed 6d ago), licensed MIT. It adds 72 tokens to every session and 2,567 once invoked, about $0.0004 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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