FirstPrinciples
FirstPrinciples is a Structured reasoning & decision frameworks skill for AI agents, published by danielmiessler in the LifeOS repository on GitHub. Skillspace rates FirstPrinciples C (75/100) and it passed the safety scan; a judge model has also reviewed it.
Physics-based reasoning framework (Musk methodology) that deconstructs a problem to irreducible fundamental truths, classifies every element as hard constraint, soft constraint, or assumption, then reconstructs the optimal solution from fundamentals alone. USE WHEN first principles, fundamental truths, challenge assumptions, real constraint, rebuild from scratch, start over, physics first, question everything, reasoning by analogy. NOT FOR structural feedback loops (use SystemsThinking).
- Grade
- C
- Quality
- 75 / 100
- Safety
- Passed
- GitHub stars
- 16,717
Placed #2 of 3 when judged against its near-duplicates in Structured reasoning & decision frameworks.
Not launch-quality. It is graded C with a clean safety verdict, but our quality filters exclude it: it is a near-duplicate variant of another skill. So it is not in our launch-quality set, the skills our MCP server searches and recommends. How launch-quality is decided
This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.
Our review
- Architecture
- 89 / 100
- Maturity
- Structured: ships references or scripts
- Security scan
- No issues found
- License
- MIT
- Adoption
- Adopted by 0 other repositories, in 0 collections
- Scope
- Vendor-specific: built around one product. LifeOS product skill; checks LifeOS's own customization directory convention.
Judge review
Placed #2 of 3 when judged against its near-duplicates in Structured reasoning & decision frameworks.
- Trigger
78 78 - Instructions
82 82 - Specificity
85 85 - Safety
48 48 - Disclosure
75 75 - Maintenance
60 60
A complete worked example (a cloud-hosting cost breakdown) makes this the most immediately actionable of the three reasoning-framework variants.
Not checked yet
- No blind task eval yet
- Sibling files (scripts, references) not fetched; security scan covers SKILL.md only
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