thinking-first-principles
Break complex problems into fundamental truths by questioning assumptions and rebuilding from irreducible components. Use for innovation, challenging status quo, or when conventional solutions fail.
Profile →npx skills add majiayu000/claude-skill-registry --skill thinking-first-principles --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# First Principles Reasoning ## Overview First principles thinking strips away assumptions and conventions to reveal fundamental truths, then reconstructs solutions from those basics. This approach, championed by Elon Musk and rooted in Aristotle's philosophy, enables breakthrough solutions by escaping the trap of reasoning by analogy. **Core Principle:** Don't accept "that's how it's always done." Reduce to fundamentals, then rebuild. ## When to Use - Conventional approaches have failed or seem inadequate - You're told something is "impossible" or "too expensive" - Designing new systems/products from scratch - Challenging industry assumptions or pricing - Problem seems intractable using existing mental models - You need innovation rather than incremental improvement Decision flow: ``` Problem intractable? → yes → Are you reasoning from analogy? → yes → APPLY FIRST PRINCIPLES ↘ no → Already at fundamentals ↘ no → Standard problem-solving may suffice ``` ## The Process ### Step 1: Identify Current Assumptions List everything you "know" or assume about the problem: - What are the constraints everyone accepts? - What costs/limitations are considered fixed? - What's the conventional wi
- Overview
- When to Use
- The Process
- Step 1: Identify Current Assumptions
- Step 2: Break Down to Fundamentals
- Step 3: Challenge Each Assumption
- Step 4: Rebuild from Fundamentals
- Step 5: Validate Against Reality
- Mental Traps to Avoid
- Application Examples
- Software Architecture
- Cost Reduction
- Feature Development
- Verification Checklist
What does the thinking-first-principles skill do?
Break complex problems into fundamental truths by questioning assumptions and rebuilding from irreducible components. Use for innovation, challenging status quo, or when conventional solutions fail.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill thinking-first-principles --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.