munger-mental-models-worldly-wisdom SKILL.md skillA
munger-mental-models-worldly-wisdom from simbajigege/book2skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add simbajigege/book2skills/munger-mental-models-worldly-wisdom@git:20260430.5b2ddcdPins git:20260430.5b2ddcd in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- simbajigege/book2skills
- Path
skills/munger-mental-models-worldly-wisdom/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260430.5b2ddcd, committed Apr 30, 2026
- First version recorded
- Mar 25, 2026
- Size
- 17,250 bytes
- Repository stars
- 202
- License
- MIT
Apply Charlie Munger mental models to investments, decisions, and bias diagnosis. Trigger on Munger checklist or spot biases.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
## Overview This skill turns Charlie Munger's *Poor Charlie's Almanack* into an executable decision tool for investment evaluation, business judgment, and psychological misjudgment diagnosis. It helps users combine multidisciplinary mental models, inversion, circle-of-competence discipline, and bias checklists into structured recommendations. ## When to Use This Skill - The user asks to analyze an investment, company, business decision, or strategy using Charlie Munger's approach. - The user asks which mental models apply to a situation. - The user wants to diagnose cognitive biases, market manias, frauds, scandals, or irrational behavior. - The user wants a checklist for decision quality, preparation, patience, concentration, or opportunity cost. - The user asks what could go wrong and how to invert a plan before acting. ## HOW TO USE THIS SKILL 1. Classify the user's request as investment evaluation, bias diagnosis, general decision review, or Munger-style synthesis. 2. Apply only the dimensions required by the query. Do not force every checklist into a narrow question. 3. Start with competence boundaries and inversion whenever the user asks for a recommendation. …
Read the whole file at its exact version.
How to install
mdr add simbajigege/book2skills/munger-mental-models-worldly-wisdom@sha256:8ac27b52ec8b1897The line at the top of this page pins the label git:20260430.5b2ddcd, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_rkbqwoca3g64lxns)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Mar 25, 2026 and Apr 30, 2026, about one every 18 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260430.5b2ddcd latest | 2026-04-30 | 5b2ddcd | 17,250 B | A | view · diff |
| git:20260325.00384de | 2026-03-25 | 00384de | 14,860 B | A | view · diff |
| git:20260325.7e14737 | 2026-03-25 | 7e14737 | 14,848 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (17250 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
simbajigege/book2skills · 202 stars · license MIT · pushed 2026-08-26 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rkbqwoca3g64lxns GET https://markdownregistry.com/api/v1/resolve?ref=simbajigege/book2skills/munger-mental-models-worldly-wisdom GET https://markdownregistry.com/api/v1/blob/8ac27b52ec8b1897a350df1acd3065bb9744cafaab6eab8fc36ebaa116247650
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.