Skip to content

Claude Skills by martineserios

github.com/martineserios

83 skillsA× 81B× 22 installs270 views

First PrinciplesABreak down complex problems to their fundamental truths, then reason up from there. Master Aristotle's ancient method modernized by Elon Musk to solve seemingly impossible problems. Use when: **Facing a \"impossible\" problem** where conventional solutions don't work; **Challenging industry assumptions** that everyone accepts as truth; **Pricing or cost analysis** to find dramatic savings (like Musk with batteries); **Product innovation** when iterating on existing solutions isn't enough; **S...developmentgoawsVotes: 0GitHub stars: 3
InversionA\"Invert, always invert.\" Apply Carl Jacobi's mathematical principle and Charlie Munger's investing wisdom to solve problems by thinking backward from failure. Use when: **Goal setting** - Define what would guarantee failure, then avoid it; **Risk analysis** - Identify what could destroy your project before starting; **Decision making** - Evaluate choices by examining their worst outcomes; **Problem solving** - When direct approaches aren't working, reverse the question; **Strategy developme...developmentgoawsVotes: 0GitHub stars: 3
Jobs To Be DoneADiscover what customers truly need by analyzing the "job" they hire your product to do. Use when the user mentions "customer discovery", "why customers churn", "what job does this solve", "competing against luck", "product-market fit", "switching behavior", "milkshake moment", or "functional vs emotional jobs". Also trigger when investigating why users choose competitors, designing features around real customer needs, or reframing a value proposition. Covers JTBD interviews, competition analy...developmentrustgoVotes: 0GitHub stars: 3
Marketplace FundamentalsAHelp users understand the core mechanics of marketplace businesses, from solving the cold start problem to maintaining quality and preventing platform leakage at scale.developmentrustgoVotes: 0GitHub stars: 3
Marketplace Liquidity Take RatesAHelp users define precise liquidity metrics, set competitive take rates based on value delivery, and manage the delicate balance between supply-side health and platform profitability.developmentrustgoVotes: 0GitHub stars: 3
Pre MortemAImagine your project has failed spectacularly—then work backward to identify why. Apply Gary Klein's \"prospective hindsight\" technique to catch failures before they happen. Use when: **Before launching** a product, campaign, or major initiative; **Before making** an important decision (hiring, investment, partnership); **Starting a project** to identify risks the team hasn't considered; **When overconfident** and everyone agrees the plan is great; **Before committing resources** to a signif...developmentgosecurityVotes: 0GitHub stars: 3
Second Order ThinkingAThink beyond immediate consequences to understand the chain reactions of decisions. Master Howard Marks' investment framework for seeing what others miss. Use when: **Strategic decisions** where long-term consequences matter; **Policy/rule changes** that will trigger behavioral responses; **Competitive moves** to anticipate market reactions; **Product decisions** where user behavior may shift; **Investment analysis** to see past obvious conclusionsdevelopmentgoreactVotes: 0GitHub stars: 3
Six Thinking HatsAApply Edward de Bono's parallel thinking framework (1985) to make better decisions by examining ideas from six distinct perspectives systematically. Use when: **Making complex decisions** that require multiple perspectives; **Evaluating new products, offers, or strategies** before launch; **Breaking out of analysis paralysis** with structured thinking; **Running productive meetings** where everyone thinks in the same direction; **Balancing optimism with caution** in strategic planningdevelopmentrustgoVotes: 0GitHub stars: 3
Supply Demand BalanceAHelp users identify whether supply or demand is their primary growth bottleneck and apply tactical levers to achieve marketplace liquidity and long-term health.developmentgogitVotes: 0GitHub stars: 3
Systems ThinkingAHelp users think in systems and understand complex dynamics. Use when someone is dealing with multi-stakeholder problems, trying to understand second-order effects, managing platform ecosystems, or analyzing complex organizational dynamics.ai-agentsgoVotes: 0GitHub stars: 3
Critical Thinking Logical ReasoningASurface hidden assumptions, detect logical fallacies, examine evidence quality, and stress-test arguments before committing to them.developmentgodebuggingVotes: 0GitHub stars: 3
Decision MatrixAWeighted criteria scoring for multi-option decisions — makes trade-offs explicit and defensible with sensitivity analysis.developmentgosecurityVotes: 0GitHub stars: 3
First PrinciplesABottom-up reasoning from fundamentals — strip assumptions, interrogate each one, rebuild from what's actually true.ai-agentsgogitVotes: 0GitHub stars: 3
InversionABackward-from-failure thinking — define what would guarantee failure, then systematically avoid it.ai-agentsgoVotes: 0GitHub stars: 3
Jobs To Be DoneAUnderstand what customers are actually hiring a product to do — functional, emotional, and social dimensions — to design solutions that win.developmentgoVotes: 0GitHub stars: 3
Pre MortemAProspective hindsight — imagine the project already failed, then diagnose why. Surfaces hidden risks before commitment.ai-agentsgotestingVotes: 0GitHub stars: 3
Second Order ThinkingAChain-reaction mapping — trace consequences beyond the obvious first effect to reveal hidden risks and opportunities.developmentgoreactVotes: 0GitHub stars: 3
Six Thinking HatsASix parallel thinking perspectives — White/Red/Black/Yellow/Green/Blue — to separate facts, feelings, risks, benefits, creativity, and process.developmentgoreactVotes: 0GitHub stars: 3
Swot AnalysisAMap Strengths, Weaknesses, Opportunities, Threats — then generate cross-referenced strategic moves (SO, WO, ST, WT).developmentgoapiVotes: 0GitHub stars: 3
Systems ThinkingBMap players, stocks, flows, and feedback loops to understand why a system behaves the way it does — and where leverage lives.developmentrustgoVotes: 0GitHub stars: 3
Bash Defensive PatternsAMaster defensive Bash programming techniques for production-grade scripts. Use when writing robust shell scripts, CI/CD pipelines, or system utilities requiring fault tolerance and safety.developmentshellbashVotes: 0GitHub stars: 3
DecideADecision support — criteria, scenarios, patterns, recommendation.developmentgobashVotes: 0GitHub stars: 3
Design SystemAToken architecture and component specs: three-layer tokens (primitive→semantic→component), CSS variables, spacing/typography scales, slide generation. Use for design tokens, systematic design, brand-compliant presentations.developmentpythonrustVotes: 0GitHub stars: 3
Diagnose Hard BugAHard-bug diagnosis: tight loop, ranked hypotheses.ai-agentsshellbashVotes: 0GitHub stars: 3
DiscoverARuntime catalog — list all installed skills, agents, and active hooks. Use when you want to know what's available.developmentpythonbashVotes: 0GitHub stars: 3
Domain Driven DesignADDD tactical patterns — entities, value objects, aggregates, domain services, repositories, specifications, bounded contexts (Python/TypeScript).developmenttypescriptpythonVotes: 0GitHub stars: 3
Grad Mechanism DesignAMechanism design (reverse game theory): incentive-compatible rules for allocation — auctions, voting, matching. Use when designing or evaluating a mechanism for incentive compatibility and rationality.developmentgoVotes: 0GitHub stars: 3
ImpeccableAUse when the user wants to design, redesign, shape, critique, audit, polish, clarify, distill, harden, optimize, adapt, animate, colorize, extract, or otherwise improve a frontend interface. Covers websites, landing pages, dashboards, product UI, app shells, components, forms, settings, onboarding, and empty states. Handles UX review, visual hierarchy, information architecture, cognitive load, accessibility, performance, responsive behavior, theming, anti-patterns, typography, fonts, spacing,...developmentgoshellVotes: 0GitHub stars: 3
Product BrainstormingABrainstorm product ideas, explore problem spaces, and challenge assumptions as a thinking partner. Use when exploring an opportunity, generating solutions, or stress-testing an idea before converging on a direction.developmentgotestingVotes: 0GitHub stars: 3
Provisioning WizardABash wizard for human-only setup.developmentgoshellVotes: 0GitHub stars: 3
Terminal DiagramsAReference for drawing any diagram as plain monospace terminal text — box-drawing/ASCII, no external renderer. Read when work-preferences.md's trigger fires.developmentrustgoVotes: 0GitHub stars: 3
Two Axis ReviewATwo-axis review: Standards vs Spec, unmerged.developmentrustshellVotes: 0GitHub stars: 3
Web Design GuidelinesAReview UI code for Web Interface Guidelines compliance. Use when asked to \"review my UI\", \"check accessibility\", \"audit design\", or \"vs best practices\".developmentbashgitVotes: 0GitHub stars: 3