Claude Code Skills·Claude Skills·The open SKILL.md registry for Claude
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480 Claude Code skills authored by npbuilds.

updated 2026-10-04 · showing 121–180 of 480 by quality score

Average Pro QualityScore: 74.2/100

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Teach the cognitive toolkit for engaging with historical content: sourcing, contextualization, corroboration, and argumentation per Wineburg; the six concepts of significance,…
Evaluate historical sources through primary and secondary source classification, internal and external criticism, bias detection, provenance analysis, the hermeneutic circle, and…
Track what characters and factions know, believe, and hide — mapped against the world-bible's revelation layers.
Therapeutic market dynamics frameworks including game-theoretic competitive modeling, market archetypes, launch sequence impact, class saturation signals, payer adoption curves,…
Classify the intended audience of a problem statement as LLM / exec / peer / self / public. Use during binding-vow's Phase 2 diagnosis.
Reference the wicked/tame problem distinction (Rittel and Webber 1973) and Heifetz's adaptive/technical leadership challenge framework.
Direct rNPV modeling, peak sales forecasting, development cost estimation, and deal economics questions to the appropriate specialist skill.
Biostatistics methods for clinical trials, epidemiology, and life sciences research. Reference when designing clinical trials, performing survival analysis, evaluating diagnostic…
Read structured artifacts from an Obsidian vault following the vault's CLAUDE.md frontmatter schema. Supports four operations: slug lookup, frontmatter filter (with `where`…
Navigate the US tax, estate, and legal regime for collectibles — including the 28% maximum long-term capital gains rate on collectibles (IRC §1(h)(4)), Form 8283…
Orchestrate philosophical analysis across logic, ethics, epistemology, decision theory, philosophy of science, political philosophy, and dialectical methods.
Route food and wine pairing questions to the correct approach — structural pairing principles, specific cuisine traditions, or active wine recommendation for a dish.
Framework for designing systematic magic, metaphysical, or speculative technology systems. Reference when creating the fantasy element of a world — defining its source, cost,…
Produce structured evaluations of historical sources using provenance, bias, reliability assessment, and the PACT protocol from source-criticism.
Analyze strategic situations through a game-theoretic lens. Use when the user describes a competitive, cooperative, or mixed-motive scenario and needs it formalized as a game,…
Execute sales tactically — channel selection (auction vs dealer vs direct), consignment terms, reserve setting, guarantees and irrevocable bids, the tax-loss vs charitable…
Behavioral biases, crowd dynamics, and traditional sentiment indicators applied to investing. Covers the fear/greed cycle, herd behavior, contrarian frameworks from Druckenmiller…
Typeface pairing methodology — how to combine fonts for harmony, contrast, and hierarchy. Covers the contrast principle, superfamily strategy, mood matching, and common pairing…
Evolutionary game theory foundations for understanding strategy evolution in populations. Reference when analyzing evolutionarily stable strategies, interpreting classical games…
Navigate sealed retro video game collecting — WATA / VGA / CGC grading services, the seal rating system (C through A++), Heritage Auctions venue dominance, the 2020-2021 record…
Shape an audited problem statement as BLUF (Bottom Line Up Front) — one-sentence answer, minimum background, priority-ordered discussion, explicit recommendation.
Route special-situations investing analysis to the appropriate specialist skill. Use when the user wants to analyze spinoffs, insider transactions, complexity-driven mispricings,…
Direct probability of success estimation, phase transition analysis, and mechanism-based risk adjustment to the appropriate specialist skill.
The line-by-line tension that keeps readers turning pages regardless of whether anything is "happening" — emotional contradiction, the unsaid, conflicting desires within a single…
Analyze historiographical schools from Ranke's scientific history through Marxist, Annales, postcolonial, gender, microhistory, and the linguistic turn to digital humanities.
Route questions about comparative civilizations, environmental history, demographic forces, deep history, and technology as a civilizational force.
Produce 2-3 alternative formulations of a problem statement using IDEO's How Might We formula, Polya's specialize/generalize operations (level-shifting), and…
Navigate the prints and multiples market — limited edition fractions (AP, HC, EA, PP, BAT), the major print techniques (lithograph, etching, silkscreen, woodcut, photogravure),…
Build and refresh the underlying career narrative — the through-line that ties past decisions to future trajectory and gives every surface (resume, LinkedIn, cover letter,…
Knowledge skill for artifact layout, composition, visual rhythm, and typography-as-art. Covers grid-breaking layouts, spatial arrangement, density control, visual tension, and the…
Design the value exchange for intelligence products — not just pricing but the full model of how value flows between the system and its users. Handles free vs.
Analyze corporate spinoffs, restructurings, and distressed situations for investment opportunities. Use when the user wants to evaluate a spinoff, carve-out, split-off, rights…
Navigate sports card collecting — baseball, basketball, football, hockey — across vintage (T206, 1933 Goudey, 1952 Topps), the "junk wax" caution (1987–1994), and the modern era.
Direct FDA/EMA pathway analysis, designation eligibility assessment, regulatory precedent research, and regulatory risk scoring to the appropriate specialist skill.
Orchestrate the creation of mind-blowing artifacts — interactive experiences, generative art, data visualizations, immersive narratives, simulations, and creative web…
Analyze the Mediterranean and Near East as a connected historical zone from the Fertile Crescent through classical antiquity, Byzantium, the Islamic golden age, the Ottoman…
Assemble verified evidence bundles into a structured research brief with confidence-tagged findings, evidence maps, and explicit gap reporting.
Apply Munger inversion to a problem statement — instead of asking how to succeed, ask what would guarantee failure, then negate to surface preconditions for success.
Navigate movie poster collecting — one-sheets (27×41" canonical US format), inserts (14×36"), half-sheets (22×28"), lobby cards, the C1-C10 grading scale (Jon Warren's standard),…
Analyze general-purpose technologies as civilizational inflection points: stirrups, printing, gunpowder, steam, electricity, nuclear energy, computing, and AI.
Interpret insider buying and selling signals for investment decision-making. Use when the user wants to analyze Form 4 filings, evaluate insider transactions, build an insider…
The workhorse rhetorical devices for prose — anaphora, tricolon, antithesis, chiasmus, and the rhythm-and-pace devices that make prose memorable.
Route wine-collecting questions — en primeur futures, cellar strategy and storage, provenance and ullage assessment, and wine as an asset class (Liv-ex indices, blue-chip…
Map the full space of possible products from current and emerging capabilities — before filtering to what should be built.
Visualize the skill network as an ASCII dependency graph. Use when the user wants to see how skills connect, trace dependency chains, find orphaned skills, or understand the…
Calculate risk-adjusted probability of success for any therapeutic program using historical base rates, mechanism-based adjustments, and program-specific modifiers.
Understand how the same grape variety transforms across different terroirs using five case studies: Pinot Noir, Chardonnay, Syrah, Riesling, and Grenache.
Analyze trade networks and globalization cycles from the Silk Roads and Indian Ocean trade through the Columbian Exchange, mercantilism, free trade imperialism, Bretton Woods, and…
Expert knowledge on Howard Marks's contrarian investment framework — first-level vs second-level thinking, consensus analysis, cycle positioning, the relationship between price…
Analyze and recommend optimal FDA and EMA regulatory pathways for a given therapeutic program, quantifying timeline impact, eligibility criteria, and historical conversion rates.
Construct and maintain a personal advisory board — the small group of trusted advisors who deliver hard truths, deep pattern-recognition, and high-trust feedback.
Public speaking and oral presentation skills for effective communication. Covers speech structure (introduction, body, conclusion), delivery techniques (projection, pace, pause,…
Explain how grapes are grown — the vine's annual cycle, canopy and yield management, farming philosophies from conventional to biodynamic, vine age effects, and the history of…
Wine as an alternative-asset class — Liv-ex indices, blue-chip producers, illiquidity premium, cross-asset correlation, the structural friction in wine investment, and the honest…
Analyze population dynamics, urbanization, migration, epidemics, and Malthusian constraints as historical forces.
Dalio-quadrant macro overlay. Asks regime-intelligence which growth×inflation quadrant we're in and rotates a small SPY/TLT/IEF/GLD basket to the corresponding target weights.
Design the initial conditions for a product to emerge — what capabilities to combine, what constraints to impose, what feedback signals to listen to, and what to intentionally…
Behavioral game theory foundations covering how real humans deviate from Nash equilibrium. Reference when analyzing level-k thinking, quantal response equilibrium, social…
Navigate rare book collecting — first editions, points of issue, dust jacket economics, association copies, the ABAA / ILAB trade-body system, condition vocabulary (As New / Fine…
Halt physical degradation through climate control, archival materials, and conservation ethics. Use when setting up storage for a new acquisition, evaluating an existing storage…
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