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Load when user says "mental model", "think through this", "structured thinking", "help me decide", "analyze this problem", "first principles", "pre-mortem", "stakeholder mapping", "what framework should I use", or any specific model name. Provides 59 thinking frameworks for decision-making, problem decomposition, and strategic analysis.

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SKILL.md

name mental-models
description Load when user says "mental model", "think through this", "structured thinking", "help me decide", "analyze this problem", "first principles", "pre-mortem", "stakeholder mapping", "what framework should I use", or any specific model name. Provides 59 thinking frameworks for decision-making, problem decomposition, and strategic analysis.

Mental Models

Apply structured thinking frameworks to decisions, problems, and planning.

When This Triggers

  • "Help me think through X"
  • "What mental model should I use?"
  • "Apply first principles to this"
  • "Do a pre-mortem on this plan"
  • "I need to analyze this decision"
  • Any specific model name (SWOT, 5 Whys, etc.)

Workflow

Step 1: Run Mental Models Scanner

Run the script to get all available models:

python 00-system/mental-models/scripts/select_mental_models.py --format brief

This returns JSON with all 59 models across 12 categories.

Optional filters:

# Filter by category
python 00-system/mental-models/scripts/select_mental_models.py --category cognitive --format brief

# List format (names only, grouped by category)
python 00-system/mental-models/scripts/select_mental_models.py --format list

Step 2: Identify Context and Offer Options

Based on user's situation, offer 2-3 relevant models:

For decisions: Decision Matrix, Pre-Mortem, Cost-Benefit, Inversion For problems: First Principles, Root Cause (5 Whys), Fishbone For planning: Scenario Planning, Stakeholder Mapping, OKR For creativity: Design Thinking, SCAMPER, Lateral Thinking For risk: Pre-Mortem, Force Field, Red Team, Black Swan For communication: Pyramid Principle, BLUF, Steel Manning For learning: Feynman Technique, Deliberate Practice

Present options with brief descriptions (3-7 words each).


Step 3: Load Specific Model File

After user selects, load the individual model file:

File structure: 00-system/mental-models/models/{category}/{model-slug}.md

Category Path
Cognitive models/cognitive/first-principles.md, inversion.md, etc.
Collaborative models/collaborative/six-thinking-hats.md, mece.md, etc.
Diagnostic models/diagnostic/pre-mortem.md, five-whys.md, etc.
Strategic models/strategic/scenario-planning.md, ooda-loop.md, etc.
Analytical models/analytical/decision-matrix.md, swot-analysis.md, etc.
Creative models/creative/design-thinking.md, scamper.md, etc.
Operational models/operational/kanban-thinking.md, okr-framework.md, etc.
Validation models/validation/hypothesis-testing.md, red-team-analysis.md, etc.
Time & Resource models/time-resource/eisenhower-matrix.md, opportunity-cost.md, etc.
Communication models/communication/pyramid-principle.md, bluf.md, etc.
Learning models/learning/feynman-technique.md, deliberate-practice.md, etc.
Probability & Risk models/probability-risk/expected-value.md, black-swan-awareness.md, etc.

Example:

User picks: "First Principles + Pre-Mortem"

AI loads:
→ Read: 00-system/mental-models/models/cognitive/first-principles.md
→ Read: 00-system/mental-models/models/diagnostic/pre-mortem.md

Step 4: Apply Model Questions

Use the question templates from the loaded model file to guide the user through structured thinking.

Each model file contains:

  • Purpose: What the model does
  • When to Use: Best situations for this model
  • Questions to Ask: Ready-to-use prompts
  • Process: Step-by-step application
  • Output: What you get from using it

Keep it collaborative - this is a conversation, not an interrogation.


Quick Reference

12 Categories (59 Models):

  1. Cognitive - First Principles, Systems Thinking, Lateral Thinking, Inversion, Second-Order Thinking, Analogous Reasoning
  2. Collaborative - Six Hats, MECE, Stakeholder Mapping, Devil's Advocate
  3. Diagnostic - 5 Whys, Fishbone, Pre-Mortem, Force Field, Fault Tree
  4. Strategic - Scenario Planning, OODA, Jobs to Be Done, Blue Ocean, PESTLE, Porter's Five Forces
  5. Analytical - Decision Matrix, SWOT, Cost-Benefit, Pareto, Assumption Testing, Sensitivity Analysis
  6. Creative - Design Thinking, SCAMPER, Morphological, Random Entry, Constraint Removal
  7. Operational - Kanban, Value Stream, OKR, Lean Canvas, Theory of Constraints
  8. Validation - Hypothesis Testing, Prototyping, Red Team, A/B Testing
  9. Time & Resource - Eisenhower Matrix, Time Boxing, Opportunity Cost, Sunk Cost, Resource Mapping
  10. Communication - Pyramid Principle, BLUF, Situation-Complication-Resolution, Steel Manning
  11. Learning - Feynman Technique, Spaced Repetition, Deliberate Practice, T-Shaped Skills
  12. Probability & Risk - Expected Value, Margin of Safety, Black Swan, Bayesian Updating, Regret Minimization

Notes

  • Always offer choice, never prescribe
  • Run script first to see all available models
  • Load individual model files only after user selects
  • Combine models when appropriate (e.g., First Principles + Pre-Mortem)
  • Adapt formality to user's context