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

updated 2026-08-22 · showing 361–420 of 480 by quality score

Average Pro QualityScore: 74.2/100

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Navigate the die-variety specialist subfield — doubled dies (1955 DDO, 1969-S DDO), repunched mint marks (RPM), overdates, and other minting errors that create coins with values…
Classify the intended audience of a problem statement as LLM / exec / peer / self / public. Use during binding-vow's Phase 2 diagnosis.
Reference framing effects, attribute substitution (replacing a hard question with an easier one), Einstellung effect (functional fixedness in problem-solving), and Type III errors…
Assembles the final EMPTOR BRIEF for a purchase decision and runs its pre-flight audit: ranked pick with confidence-and-because clauses, trade-off map, evaluation matrix,…
Build and manage a collector wine cellar — bonded storage vs home storage, OWC vs loose bottles, drinking windows, deaccessioning timing, the trade-offs between consumption and…
Deep expertise in cross-asset correlation regimes — how correlations shift across market environments, why diversification fails in crises, and how to identify true diversifiers.
Reference Russell Ackoff's mess concept — interrelated problem systems where dissolution beats solution — and his framework distinguishing puzzles, problems, and messes.
Fixed income investing frameworks — yield curve analysis, credit evaluation, duration management, and bond market structure.
Identify cognitive biases distorting a decision, judgment, or argument. Use when the user suspects their thinking may be biased, wants to check a decision for common reasoning…
Direct the modeling subdomain — route prediction and forecasting questions to the right specialist skill, define the learning curriculum, and resolve conflicts between model…
A pattern library of named scandals, forgery vectors, and red flag clusters across collecting domains.
Learning dynamics in strategic settings covering fictitious play, no-regret learning, regret matching, multi-agent reinforcement learning, self-play, and convergence results.
Fork a complex skill into smaller, focused child skills. Use when a skill exceeds health thresholds (too many sections, too many words, mixed responsibilities), when the user…
Direct the asset universe subdomain — route asset-class-specific questions to the right specialist skill, define cross-asset analysis frameworks, and resolve conflicts between…
Translate a culture into how its people talk and think on the page — vocabulary domains, idiom source, syntactic rhythm, metaphor reach, and the things characters refuse to…
Track what characters and factions know, believe, and hide — mapped against the world-bible's revelation layers.
Expert knowledge on Howard Marks's contrarian investment framework — first-level vs second-level thinking, consensus analysis, cycle positioning, the relationship between price…
Direct role-archetype mapping, optionality architecture, IDPs and OKRs, skill-gap analysis, and pivot sequencing to the appropriate specialist skill.
Direct the rhetoric subdomain — route persuasion, argument, essay form, and rhetorical device questions to the right specialist skill.
Analyze patent landscape and IP risk for biotech assets including patent type taxonomy, patent life calculation with extensions, Orange/Purple Book analysis, Paragraph IV…
Navigate vinyl record collecting — Goldmine grading, matrix/runout numbers identifying first pressings, deadwax codes, mono vs stereo, country-of-pressing premiums (UK first-press…
Frameworks for designing self-improving systems. How does the product get better without manual intervention? Reinforcement from use, capability compounding, knowledge…
Translate a worldbuilding sensory palette into prose technique. Use when a built region exists (via `sensory-worldbuilding`) and the user needs to render it on the page without…
Track product initiatives through their organic lifecycle — from seed to compost. Maintains the initiative log with state transitions, learnings, and portfolio-level views.
Analyze how civilizations organize, preserve, and transmit knowledge: oral traditions, the invention of writing, libraries including Alexandria, universities, the printing press,…
The music of prose — sentence length variation, cadence, stress patterns, and the physical sound of written language.
Analyze South Asia as a connected historical zone covering the Indus civilization, the Vedic and classical ages, the Sultanate and Mughal empires, the colonial Raj, and the modern…
Design multi-year transition plans — what to do in year 1 to make year 3 possible, intermediate roles, advisor seats, side artifacts, and the order that makes the move credible.
Evaluate a policy, situation, or institutional arrangement through multiple justice frameworks simultaneously — Rawlsian, libertarian, utilitarian, communitarian, and…
Analyze how societies organize work and distribute its rewards across history: slavery, serfdom, wage labor, the labor movement, welfare states, and the long arc of inequality.
Route numismatic questions — US coins (Sheldon 1-70 scale, RD/RB/BN designations, FS/FBL/FH strike designations), world coins (broader category, region-specific markets), and die…
Analyze East Asia as a connected historical zone covering China's dynastic cycles, Japan, Korea, steppe empires, and the Sinocentric order.
Watch how the product-in-use differs from the product-as-designed. Where are users doing unexpected things? Where is the system developing behaviors beyond its initial seed? Where…
RSI(14) mean reversion on a small allowlist of liquid large caps. Buys oversold (RSI<30), exits at RSI>70 or after 10 days. Conviction-scaled sizing.
Navigate the prints and multiples market — limited edition fractions (AP, HC, EA, PP, BAT), the major print techniques (lithograph, etching, silkscreen, woodcut, photogravure),…
Scan the AI frontier for emerging capabilities, model developments, tool patterns, and paradigm shifts.
Frameworks for reading external signals through a product lens — market timing, technology adoption curves, readiness levels, competitive shifts, and demand indicators.
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…
Knowledge skill covering options market microstructure — 0DTE dynamics, gamma exposure (GEX), dealer hedging mechanics, volatility surface analysis, vanna and charm flows, options…
Deep reference for European wine regions — France, Italy, Spain, Germany, Portugal, Austria, Greece, and Georgia.
Build worlds that resist systematization — the New Weird approach where mystery is structural, glimpses imply vastness, and the world exceeds comprehension.
Direct offer negotiation, equity literacy, title and scope negotiation, and exit / transition craft to the appropriate specialist skill.
Great-power competition and its investment implications. Reference when assessing US-China decoupling, supply chain restructuring, Taiwan risk, alliance blocs, sanctions regimes,…
Teach the cognitive toolkit for engaging with historical content: sourcing, contextualization, corroboration, and argumentation per Wineburg; the six concepts of significance,…
Score a problem statement on six axes — specificity, falsifiability, scope, audience-fit, answerability, root-vs-symptom — using calibrated 1-5 rubrics.
Match wine to nine world cuisine traditions — French, Italian, Japanese, Indian, Thai, Middle Eastern, Mexican, Korean, and cheese.
Analyze population dynamics, urbanization, migration, epidemics, and Malthusian constraints as historical forces.
Verify that an object is what the seller claims and that its chain of ownership corroborates the attribution.
How to build and arrange arguments — Toulmin's warrant, Rogerian empathy, classical structure, and the volta/turn in essays.
Synthesize intelligence from all Neocortex skills into strategic briefings for the user. Use when the user wants the big picture on library strategy, needs a status update on…
Data cleaning, transformation, reshaping, joins, missing data handling, and tidy data principles. Covers the full pipeline from raw ingestion to analysis-ready datasets -- type…
Place a discovery- or early-clinical-stage drug candidate on the historical arc of its mechanism class.
Name the target role archetype precisely — what each archetype actually does day-to-day, what credentials it requires, what tradeoffs it imposes, and where each archetype sits in…
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…
Decide whether to grade, press, or crack-out a comic — the economic logic of submitting raw, pressing before resubmission, and the disclosure ethics of conservation vs…
Build structured comparisons of historical phenomena across time and space. Use when the user wants to compare two or more empires, revolutions, economic crises, or technological…
Evaluate an argument for validity, soundness, and fallacies. Use when the user presents an argument (their own or someone else's) and needs a structured diagnosis of its logical…
Orchestrate deep research across any topic with epistemic rigor. Use when the user needs to investigate a question, verify claims, research a topic in depth, fact-check…
Direct the risk architecture subdomain — route questions about position sizing, tail risk, correlation regimes, and drawdown psychology to the right specialist skill.
Pick the right root-cause method (5 Whys / Fishbone / dependency mapping / Current Reality Tree) for a problem statement based on typology and stakes, and tag each atomic claim as…
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