Show HN: skills-for-humanity – 171 structured reasoning skills for Claude Code

A developer released skills-for-humanity, a package of 171 structured reasoning skills for Claude Code that draws on methodologies from thinkers including Aristotle, John Stuart Mill, and John Nash. The tool organizes skills into categories such as logic, probability, decision-making, game theory, and creativity, each presented as a complete procedure with a defined problem type and sequence of moves. Users can run the package via npx and use a /think command to automatically route to the appropriate methodology without needing to know which skill fits their situation.

Structured reasoning methodologies from history's most rigorous thinkers, packaged as Claude Code skills. Think Sharper /logic /probability /decision /constraint /game-theory /epistemology /investigation | Think Differently /creativity /analogy /play | Think About People /communication /social /emotional /ethics /identity /narrative /psychology /mindset /writing | Think in Time & Systems /systems /temporal /historical /resource /strategy | See More Clearly /aesthetic /sensory | Each skill is a complete procedure: a defined problem type, a sequence of moves, a structured output. Not a concept to apply — a method to run. Lineage: de Bono https://en.wikipedia.org/wiki/Edward de Bono · Meadows https://en.wikipedia.org/wiki/Donella Meadows · Altshuller https://en.wikipedia.org/wiki/Genrich Altshuller · Minto https://en.wikipedia.org/wiki/Barbara Minto · Goldratt https://en.wikipedia.org/wiki/Eliyahu M. Goldratt · Tetlock https://en.wikipedia.org/wiki/Philip E. Tetlock · Klein https://en.wikipedia.org/wiki/Gary Klein · Mill https://en.wikipedia.org/wiki/John Stuart Mill · Kant https://en.wikipedia.org/wiki/Immanuel Kant · Aristotle https://en.wikipedia.org/wiki/Aristotle · Noddings https://en.wikipedia.org/wiki/Nel Noddings · Rawls https://en.wikipedia.org/wiki/John Rawls · Sun Tzu https://en.wikipedia.org/wiki/Sun Tzu · Clausewitz https://en.wikipedia.org/wiki/Carl von Clausewitz · Musashi https://en.wikipedia.org/wiki/Miyamoto Musashi · Nash https://en.wikipedia.org/wiki/John Forbes Nash Jr. · Axelrod https://en.wikipedia.org/wiki/Robert Axelrod · Vickrey https://en.wikipedia.org/wiki/William Vickrey · Shapley https://en.wikipedia.org/wiki/Lloyd Shapley · Spence https://en.wikipedia.org/wiki/Michael Spence npx @human-avatar/skills-for-humanity Run again to update. Restart Claude Code when done. /think Describe your situation. Routes to the right methodology automatically. You don't need to know which skill fits — that's the point. Every skill pauses before running and asks how deep you want to go. /think │ ├── Think Sharper │ ├── /logic │ │ ├── /logic-check │ │ ├── /logic-argument-validation │ │ ├── /logic-causality-mapping │ │ ├── /logic-consistency-check │ │ ├── /logic-constraint-mapping │ │ ├── /logic-council │ │ └── /logic-fixer │ ├── /probability │ │ ├── /probability-base-rate-anchoring │ │ ├── /probability-confidence-calibration │ │ ├── /probability-expected-value-calculation │ │ └── /probability-scenario-weighting │ ├── /decision │ │ ├── /decision-criteria-weighting │ │ ├── /decision-option-mapping │ │ ├── /decision-premortem-analysis │ │ └── /decision-reversibility-analysis │ ├── /constraint │ │ ├── /constraint-hardness-testing │ │ ├── /constraint-rule-inversion │ │ ├── /constraint-scope-reduction │ │ └── /constraint-workaround-mapping │ ├── /game-theory │ │ ├── /game-theory-auction │ │ ├── /game-theory-coalition │ │ ├── /game-theory-equilibrium │ │ ├── /game-theory-iterated │ │ ├── /game-theory-mechanism-design │ │ ├── /game-theory-prisoners-dilemma │ │ └── /game-theory-signaling │ ├── /epistemology │ │ ├── /epistemology-epistemic-status │ │ ├── /epistemology-justification │ │ ├── /epistemology-knowledge-types │ │ └── /epistemology-limits │ └── /investigation │ ├── /investigation-claim-decomposition │ ├── /investigation-counter-hypothesis │ ├── /investigation-evidence-audit │ ├── /investigation-source-trace │ └── /investigation-triangulation │ ├── Think Differently │ ├── /creativity │ │ ├── /creativity-alternatives │ │ ├── /creativity-assumption-excavator │ │ ├── /creativity-brainstorm │ │ ├── /creativity-concept-fan │ │ ├── /creativity-consider-factors │ │ ├── /creativity-lateral-thinking │ │ ├── /creativity-other-perspectives │ │ ├── /creativity-plus-minus-interesting │ │ ├── /creativity-provocation │ │ ├── /creativity-random-entry │ │ ├── /creativity-six-hats │ │ └── /creativity-water-logic │ ├── /analogy │ │ ├── /analogy-boundary-testing │ │ ├── /analogy-domain-transfer │ │ ├── /analogy-perspective-shifting │ │ └── /analogy-structure-mapping │ └── /play │ ├── /play-constraint-inversion │ ├── /play-perspective-reversal │ ├── /play-stimulus-generation │ └── /play-worst-case-reversal │ ├── Think About People │ ├── /communication │ │ ├── /communication-audience-modeling │ │ ├── /communication-clarity-audit │ │ ├── /communication-medium-selection │ │ └── /communication-objection-mapping │ ├── /social │ │ ├── /social-coalition-mapping │ │ ├── /social-dynamics-analysis │ │ ├── /social-incentive-analysis │ │ └── /social-power-mapping │ ├── /emotional │ │ ├── /emotional-motivation-mapping │ │ ├── /emotional-resistance-diagnosis │ │ ├── /emotional-stakes-mapping │ │ └── /emotional-trust-audit │ ├── /ethics │ │ ├── /ethics-bias-check │ │ ├── /ethics-check │ │ ├── /ethics-consent-review │ │ ├── /ethics-council │ │ ├── /ethics-crisis-triage │ │ ├── /ethics-data-audit │ │ ├── /ethics-empathy-circle │ │ ├── /ethics-impact-scan │ │ └── /ethics-vendor-review │ ├── /identity │ │ ├── /identity-character-testing │ │ ├── /identity-mission-alignment │ │ └── /identity-values-clarification │ ├── /narrative │ │ ├── /narrative-audience-modeling │ │ ├── /narrative-frame-analysis │ │ ├── /narrative-structure-mapping │ │ └── /narrative-tension-mapping │ ├── /psychology │ │ ├── /psychology-behavior-change │ │ ├── /psychology-cognitive-biases │ │ ├── /psychology-heuristics │ │ ├── /psychology-motivation │ │ └── /psychology-persuasion │ ├── /mindset │ │ ├── /mindset-flow │ │ ├── /mindset-growth │ │ ├── /mindset-positive │ │ ├── /mindset-reframe │ │ └── /mindset-stoic │ └── /writing │ ├── /writing-arc-design │ ├── /writing-argument │ ├── /writing-audience-calibration │ ├── /writing-character-development │ ├── /writing-copy │ ├── /writing-dialogue │ ├── /writing-executive-summary │ ├── /writing-inconsistency-audit │ ├── /writing-line-editing │ ├── /writing-plot-structure │ ├── /writing-pov │ ├── /writing-prose-elevation │ ├── /writing-report │ ├── /writing-restructure │ ├── /writing-rhetoric │ ├── /writing-scene-construction │ ├── /writing-technical │ ├── /writing-tone-alignment │ ├── /writing-voice-consistency │ └── /writing-worldbuilding │ ├── Think in Time & Systems │ ├── /systems │ │ ├── /systems-archetype-matching │ │ ├── /systems-emergence-detection │ │ ├── /systems-feedback-mapping │ │ └── /systems-leverage-analysis │ ├── /temporal │ │ ├── /temporal-cycle-detection │ │ ├── /temporal-futures-mapping │ │ ├── /temporal-horizon-mapping │ │ └── /temporal-timing-analysis │ ├── /historical │ │ ├── /historical-cycle-detection │ │ ├── /historical-failure-analysis │ │ ├── /historical-lesson-extraction │ │ └── /historical-precedent-analysis │ ├── /resource │ │ ├── /resource-allocation-analysis │ │ ├── /resource-bottleneck-analysis │ │ ├── /resource-leverage-mapping │ │ └── /resource-waste-audit │ └── /strategy │ ├── /strategy-alliance │ ├── /strategy-deception │ ├── /strategy-force-economy │ ├── /strategy-intelligence │ ├── /strategy-positioning │ ├── /strategy-terrain │ ├── /strategy-timing │ └── /strategy-victory │ └── See More Clearly ├── /aesthetic │ ├── /aesthetic-coherence-check │ ├── /aesthetic-elegance-testing │ ├── /aesthetic-pattern-detection │ └── /aesthetic-simplicity-analysis └── /sensory ├── /sensory-detail-mining ├── /sensory-signal-detection └── /sensory-structured-observation