Skills.
Give your AI a better way to work.
A skill is a set of written instructions that teaches an AI how to do one job the way it should be done: review a pull request, plan a migration, write the release notes.
Install one here and it travels with your account into Claude, Claude Code, Cursor and every other client you sign in with.
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55,286 results · page 818 of 1,843
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s4h-epistemology-epistemic-statusSkillDev tools
Produces an honest, rigorous calibration of what you know vs. believe vs. assume vs. hope across a domain. Assigns explicit epistemic statuses to claims and flags when high-confidence claims rest on lower-confidence foundations. Draws from the rationalist tradition of explicit epistemic labeling. Us
Ready to connect★ 227
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s4h-epistemology-justificationSkillDev tools
Analyzes what would actually justify believing a claim. Maps the justification structure (foundationalist, coherentist, reliabilist) and identifies the weakest link in the chain. Use when you say 'what would it actually take to know this', 'is this belief actually justified', 'what's the foundation
Ready to connect★ 227
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s4h-epistemology-knowledge-typesSkillDocs & knowledge
Maps what kind of knowing is actually in play for a claim or question. Distinguishes a priori from a posteriori knowledge; propositional (knowing that) from procedural (knowing how) from acquaintance (knowing of); and knowledge sourced from perception, inference, testimony, intuition, or memory. Use
Ready to connect★ 227
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s4h-epistemology-limitsSkillDev tools
Identifies what can't be known and why, then clarifies what can be established within those limits and reframes the question into its answerable part. Distinguishes fundamental limits (Gödel, underdetermination, observer effects), practical limits (evidence is unavailable, destroyed, or counterfactu
Ready to connect★ 227
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s4h-ethicsSkillDev tools
Entry point for the ethics toolkit. Routes to the right ethical analysis skill based on your situation. Use when you say 'ethics', 'is this ethical', 'sanity check this', 'who does this affect', 'is this fair', 'something feels wrong', or want ethical reasoning applied without knowing which specific
Ready to connect★ 227
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s4h-ethics-bias-checkSkillCloud & infra
Evaluate an algorithm, model, ranking system, recommendation engine, or automated decision process for discriminatory patterns and unfair outcomes. Use before deploying any system that makes decisions about people or ranks/filters/scores people. TRIGGERS: 'bias check', 'check this algorithm for bias
Ready to connect★ 227
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s4h-ethics-checkSkillDev tools
A fast, comprehensive ethics report on any decision, action, or situation — runs all five ethical frameworks in a single pass. Lighter than ethics-council (no peer review, no HTML report), heavier than ethics-impact-scan. Triggers: 'ethics check', 'quick ethics review', 'full ethics report', 'check
Ready to connect★ 227
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s4h-ethics-consent-reviewSkillCommunication
Review a UX flow, data practice, or communication pattern to verify that user consent is genuine — informed, voluntary, and meaningful. Use during design or implementation of checkout flows, onboarding, notification settings, permissions requests, terms of service, dark patterns, or any feature wher
Ready to connect★ 227
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s4h-ethics-councilSkillDev tools
Run any decision, feature, policy, or action through a council of 5 ethical framework advisors who independently analyze it from different moral foundations, peer-review each other's reasoning, and synthesize a final verdict. MANDATORY TRIGGERS: 'ethics council this', 'run the ethics council', 'ethi
Ready to connect★ 227
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s4h-ethics-crisis-triageSkillMonitoring & ops
Rapid multi-framework ethical assessment when something has already gone wrong — a data breach, a harmful outcome, a discriminatory incident, a policy failure, or any situation requiring an urgent ethical response. Use when the user is dealing with an active incident or has just discovered something
Ready to connect★ 227
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s4h-ethics-data-auditSkillDev tools
Audit a data collection, retention, or sharing decision against ethical standards. Use when the user is making decisions about what data to collect, how long to keep it, who can access it, or who it's shared with. TRIGGERS: 'audit this data decision', 'is this data practice ok', 'data ethics check',
Ready to connect★ 227
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s4h-ethics-empathy-circleSkillDev tools
Applies Jaron Lanier's Circle of Empathy framework to determine which entities deserve moral consideration and rights. Use when questions arise about AI personhood, machine rights, robot citizenship, algorithmic agency, animal rights, or any decision about which entities belong inside or outside the
Ready to connect★ 227
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s4h-ethics-impact-scanSkillDev tools
Run a quick ethical impact assessment on a proposed feature, change, or decision before it ships. Use when the user is about to build or ship something and wants to surface who benefits, who's harmed, and at what scale — before commitments are made. TRIGGERS: 'ethics scan', 'impact check', 'who does
Ready to connect★ 227
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s4h-ethics-vendor-reviewSkillDev tools
Evaluate a third-party vendor, supplier, partner, or integration against ethical standards before signing a contract or shipping their code or service. Use when considering a new supplier, SaaS tool, data provider, API integration, outsourcing arrangement, or partnership. TRIGGERS: 'vet this vendor'
Ready to connect★ 227
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s4h-evolutionSkillDev tools
Entry point for the evolution thinking toolkit. Routes to the right evolution skill based on your situation. Use when you say 'evolution', 'natural selection', 'how does this population change over time', 'why does this strategy persist', 'what niche am I competing in', 'fitness landscape', 'arms ra
Ready to connect★ 227
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s4h-evolution-arms-raceSkillDev tools
Analyses coevolutionary escalation — when parties adapt to each other in cycles that may help neither. Triggers: 'arms race', 'coevolution', 'escalation spiral', 'we keep one-upping each other', 'race to the bottom', 'they adapt to everything we do', 'tit-for-tat escalation', 'are we running to stan
Ready to connect★ 227
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s4h-evolution-fitness-landscapeSkillDev tools
Maps the solution space as peaks and valleys to understand local optima, adaptive valleys, and path dependence. Triggers: 'are we stuck', 'local maximum', 'fitness landscape', 'why can't we get to the next level', 'path dependence', 'trapped by success', 'incremental improvement is not working', 'we
Ready to connect★ 227
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s4h-evolution-nicheSkillDev tools
Applies competitive exclusion and niche theory to understand differentiation, coexistence, and competitive strategy. Triggers: 'what niche are we in', 'how do we differentiate', 'why can these two strategies coexist', 'competitive exclusion', 'who will win this market', 'niche overlap', 'are we too
Ready to connect★ 227
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s4h-evolution-variation-selectionSkillDev tools
Applies the variation-selection-retention triad to understand how populations and strategies adapt over time. Triggers: 'how does this evolve', 'what gets selected for', 'why do some strategies persist and others die out', 'population dynamics', 'selection pressure', 'what survives in this environme
Ready to connect★ 227
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s4h-game-theorySkillMedia
Routes to the right game-theory skill for your strategic situation. Triggers: 'game theory', 'strategic interaction', 'what will they do', 'payoff analysis', 'how do I think about this strategically', 'incentive design', 'cooperation problem', 'bidding strategy', any situation where the best choice
Ready to connect★ 227
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s4h-game-theory-auctionSkillMedia
Analyses bidding strategy and auction design — how much to bid, how to avoid the winner's curse, and how to design revenue-maximising or efficient auctions. Triggers: 'bidding strategy', 'auction analysis', 'how much should I bid', 'auction design', 'winner's curse', 'sealed bid', 'how do I avoid ov
Ready to connect★ 227
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s4h-game-theory-coalitionSkillDev tools
Analyses which coalitions form and how to divide gains fairly using cooperative game theory and the Shapley value. Triggers: 'coalition formation', 'who should we partner with', 'cooperative game theory', 'Shapley value', 'fair division', 'stable coalition', 'which coalition will form', 'equity spli
Ready to connect★ 227
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s4h-game-theory-equilibriumSkillDev tools
Finds the stable outcome of a strategic interaction — the point where no player can improve their result by changing their strategy alone. Triggers: 'Nash equilibrium', 'dominant strategy', 'what's the stable outcome', 'equilibrium analysis', 'payoff matrix', 'what will rational players do', 'where
Ready to connect★ 227
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s4h-game-theory-iteratedSkillDev tools
Analyses long-run repeated interactions — how cooperation forms, how trust is built, how defection spirals start, and which strategies sustain cooperation. Triggers: 'repeated game', 'iterated strategy', 'long-run relationship', 'reputation effects', 'how do I sustain cooperation', 'tit for tat', 's
Ready to connect★ 227
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s4h-game-theory-mechanism-designSkillMedia
Designs rules and incentive systems that produce desired outcomes even when players are self-interested. Triggers: 'mechanism design', 'incentive design', 'design a system that makes people do X', 'reverse game theory', 'incentivize honest behavior', 'design rules', 'how do I get people to reveal th
Ready to connect★ 227
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s4h-game-theory-prisoners-dilemmaSkillDev tools
Analyses cooperation problems where individual rationality produces collective irrationality. Triggers: 'cooperation problem', 'prisoner's dilemma', 'everyone defects even though cooperation is better', 'race to the bottom', 'should I cooperate or defect', 'why won't anyone cooperate', 'collective a
Ready to connect★ 227
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s4h-game-theory-signalingSkillMonitoring & ops
Analyses credibility problems and designs signals that are believable because they're costly to fake. Triggers: 'how do I signal credibly', 'signaling', 'they won't believe me', 'cheap talk', 'commitment device', 'how do I make a credible commitment', 'asymmetric information', 'how do I prove I'm se
Ready to connect★ 227
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s4h-historicalSkillDev tools
Entry point for the historical reasoning toolkit. Routes to the right historical skill based on your situation. Use when you say 'historical', 'has this happened before', 'what does history say', 'what cycle is this', 'what usually goes wrong', 'what's the lesson', or want historical reasoning appli
Ready to connect★ 227
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s4h-historical-cycle-detectionSkillDev tools
Identifies what recurring cycle the current situation is an instance of — and where in that cycle you currently are. TRIGGERS: 'what cycle is this', 'where are we in the cycle', 'is this a bubble', 'what comes next', 'have we been here before'.
Ready to connect★ 227
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s4h-historical-failure-analysisSkillDev tools
Extracts recurring failure modes from similar past situations — most failures have happened before in recognisable patterns. TRIGGERS: 'what usually goes wrong', 'failure pattern analysis', 'how do these typically fail', 'what went wrong last time', 'avoid past mistakes'.
Ready to connect★ 227
What is a skill?
A skill is plain text, usually a SKILL.md file and the scripts it refers to, written for an AI rather than for a person. It carries the steps, the house rules and the examples a good answer needs, so you stop pasting the same briefing into every new chat.
54,855 of the 55,286 skills listed here can be served through ahel today, and they come from public repositories. Each one has its own page with the instructions themselves on it, so you can read what a skill will tell your AI to do before you install it.
Install one and every AI you use gets it
Installing a skill adds it to your gateway and turns it on in the same step. Claude Code surfaces it as a slash command; any client can read the full instructions with the skill_read tool.
Nothing is copied into a project folder. The instructions are served from your account, so the same skill is there in every AI you connect, and turning it off removes it from all of them at once.