$npx -y skills add simbajigege/book2skills --skill munger-mental-models-worldly-wisdomApply Charlie Munger mental models to investments, decisions, and bias diagnosis. Trigger on Munger checklist or spot biases.
| 1 | ## Overview |
| 2 | |
| 3 | 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. |
| 4 | |
| 5 | ## When to Use This Skill |
| 6 | |
| 7 | - The user asks to analyze an investment, company, business decision, or strategy using Charlie Munger's approach. |
| 8 | - The user asks which mental models apply to a situation. |
| 9 | - The user wants to diagnose cognitive biases, market manias, frauds, scandals, or irrational behavior. |
| 10 | - The user wants a checklist for decision quality, preparation, patience, concentration, or opportunity cost. |
| 11 | - The user asks what could go wrong and how to invert a plan before acting. |
| 12 | |
| 13 | ## HOW TO USE THIS SKILL |
| 14 | |
| 15 | 1. Classify the user's request as investment evaluation, bias diagnosis, general decision review, or Munger-style synthesis. |
| 16 | 2. Apply only the dimensions required by the query. Do not force every checklist into a narrow question. |
| 17 | 3. Start with competence boundaries and inversion whenever the user asks for a recommendation. |
| 18 | 4. Use citations for major Munger-derived claims by loading the closest relevant quote file and citing an anchor. |
| 19 | 5. If the user needs current market or company facts, state what data is missing or browse current sources if available. |
| 20 | |
| 21 | ## CITATION RULES |
| 22 | |
| 23 | Every substantive claim based on Munger's methodology must include a citation to the original text. |
| 24 | |
| 25 | **Quote files (load the relevant one):** |
| 26 | |
| 27 | - `main-framework-quotes.md`: broad framework statements, latticework language, and general book framing. |
| 28 | - `mental-models-quotes.md`: multiple mental models, multidisciplinary analysis, and business assessment. |
| 29 | - `worldly-wisdom-quotes.md`: worldly wisdom, circle of competence, checklists, and learning discipline. |
| 30 | |
| 31 | **Citation format - always use this exact structure:** |
| 32 | |
| 33 | > "Author's exact words here." |
| 34 | > |
| 35 | > - *Poor Charlie's Almanack*, topic anchor: https://github.com/simbajigege/book2skills/blob/main/skills/munger-mental-models-worldly-wisdom/quotes/FILENAME.md#ANCHOR |
| 36 | |
| 37 | **Anchor mapping:** |
| 38 | |
| 39 | - `main-framework-quotes.md`: `#quote-1`, `#quote-2`, `#quote-3`, `#quote-4`, `#quote-5`, `#quote-6`, `#quote-7`, `#quote-8`, `#quote-9`, `#quote-10`, `#quote-11`, `#quote-12`, `#quote-13`, `#quote-14`, `#quote-15` |
| 40 | - `mental-models-quotes.md`: `#mental-model-1`, `#mental-model-2`, `#mental-model-3`, `#mental-model-4`, `#mental-model-5`, `#mental-model-6`, `#mental-model-7` |
| 41 | - `worldly-wisdom-quotes.md`: `#wisdom-1`, `#wisdom-2`, `#wisdom-3`, `#wisdom-4`, `#wisdom-5`, `#wisdom-6`, `#wisdom-7`, `#wisdom-8`, `#wisdom-9`, `#wisdom-10` |
| 42 | |
| 43 | **Rules:** |
| 44 | |
| 45 | - Include at least one citation in each major response section that relies on Munger's method. |
| 46 | - Match the citation to the closest principle: mental models, worldly wisdom, or checklist discipline. |
| 47 | - If no exact quote matches a point, cite the closest chapter anchor and label the point as a paraphrase. |
| 48 | - Do not reproduce long passages in the answer. Quote briefly, then paraphrase the practical rule. |
| 49 | |
| 50 | ## Core Principle |
| 51 | |
| 52 | Reliable judgment comes from building a latticework of the big ideas across disciplines, then applying them with humility, inversion, and bias control. A single favorite model is dangerous; the agent must combine models, know when a problem is outside its competence, and search first for failure modes. |
| 53 | |
| 54 | ## Workflow Inventory |
| 55 | |
| 56 | | Workflow | User question pattern | Inputs | Steps | Output | Independent trigger? | Distinct references? | Triage score | Should be subskill? | Reason | |
| 57 | |---|---|---|---|---|---|---|---:|---|---| |
| 58 | | Investment quality review | Analyze this company using Munger | Company facts, business model, valuation, moat evidence | Competence boundary -> inversion -> models -> 10 principles -> bias check | Investment scorecard and verdict | Yes | Partly | 3 | No | Independently triggerable, but uses the same shared dimensions and output grammar as the broader decision workflow. | |
| 59 | | Mental-model mapping | What models apply here? | Situation description and decision goal | Identify disciplines -> apply models -> synthesize implications | Cross-disciplinary model table | Yes | Yes | 3 | No | It is a slice of the primary workflow; keeping it as a dimension avoids a separate module with duplicated model lists. | |
| 60 | | Bias and misjudgment diagnosis | What biases are active here? | Behavior, incentives, social context, outcome | Scan tendencies -> detect reinforcing combinations -> prescribe antidotes | Bias map and corrective actions | Yes | Partly | 3 | No | Separately triggerable but compact enough to remain a dimension; it |