Math
Mathematical computations, formulas, statistics
skills-xlsx
by Within-7
"Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas"
h3-js
by frontboat
Index points into a hexagonal grid
xlsx
by UholySmokes
"Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas"
results-interpreter
by sxg
Analyze CSV data files and interpret figures to generate the Results section. Fifth step of writer workflow. Requires scope.md, data/ folder with CSVs, and figures/ folder with images.
xlsx
by sarfraznawaz2005
"Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas"
procedural-starfield
by CK42BB
Generate stunning procedural night skies, starfields, nebulae, and celestial phenomena in Three.js using WebGPU compute with WebGL2 fallback. Covers scientifically-grounded starfields with spectral color temperature, magnitude-based brightness, and twinkling; volumetric nebulae with emission/absorption/reflection types; the Milky Way band; constellations with optional line overlays; planets and moons with phase lighting; shooting stars and meteor showers; aurora integration; eclipses (solar and lunar); comets with ion/dust tails; galaxies as deep-sky backdrop objects; and a full sky dome controller with time-of-night progression, moon phases, and horizon glow. Triggers: "procedural starfield", "night sky", "star rendering", "nebula", "deep space", "milky way", "constellation", "shooting star", "meteor shower", "celestial", "space background", "starbox", "skybox stars", "galaxy background", "moon phases", "comet", "eclipse", "space scene", "star shader".
xlsx
by ThomasRohde
"Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas"
xlsx
by UholySmokes
"Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas"
statistics
by pluginagentmarketplace
Statistical analysis methods, hypothesis testing, and probability for data analytics
united-airlines-baggage-fee-calculator
by Ontos-AI
Opens the United Airlines baggage fee calculator webpage.
three-js
by noklip-io
This skill should be used when the user asks to "create a 3D scene", "add a mesh", "implement OrbitControls", "load a GLTF model", "add bloom post-processing", "write a custom shader", "create particle effects", "optimize Three.js performance", "use WebGPU", "add shadows", "animate a model", or mentions Three.js, threejs, WebGL, WebGPU, GLTF, raycaster, shader material, PBR material, or post-processing effects. IMPORTANT: This skill is for VANILLA Three.js (imperative JavaScript). For React Three Fiber (@react-three/fiber, R3F, drei), check the r3f-best-practices skill, although three-js skills helps when working with R3F since R3F is a React renderer for Three.js. Provides complete Three.js reference for 3D web graphics including scene setup, geometry, materials, textures, lighting, cameras, loaders, animation, controls, interaction, shaders, post-processing, performance optimization, TSL/node materials, WebGPU, physics, and VR/XR integration.
threejs-builder
by CookSaw
Creates simple Three.js web apps with scene setup, lighting, geometries, materials, animations, and responsive rendering. Use for: "Create a threejs scene/app/showcase" or when user wants 3D web content. Supports ES modules, modern Three.js r150+ APIs.
hook-timer
by rozwer
Show hook execution timing from hook-timer.jsonl. Highlights slow hooks over 500ms.
manim-video-creator
by y-ymmt
Manim（Mathematical Animation Engine）を使用してアニメーション動画を作成します。このスキルは、(1) 解説動画やビジュアライゼーションの作成、(2) プレゼンテーション動画、(3) ロゴアニメーション、(4) インフォグラフィック、(5) 教育コンテンツ、(6) 3Dアニメーション、(7) アルゴリズムやデータ構造の可視化に使用します。2D/3Dシーン、LaTeX数式、グラフ、TTSナレーション、BGMなどをサポートします。
geojson-points
by mmbmf1
Convert JSON rows with latitude/longitude fields into a GeoJSON FeatureCollection using raw PostGIS SQL.
postgis-buffer
by mmbmf1
Create buffer geometries with ST_Buffer, with correct units and safe patterns for geometry vs geography.
transbigdata
by ni1o1
TransBigData 交通时空大数据分析工具集。适用于轨迹数据栅格化、轨迹清洗处理、出租车OD提取、公交地铁网络分析、坐标转换、数据可视化等交通大数据分析任务。
postgis-transform
by mmbmf1
Reproject PostGIS geometry using ST_Transform with correct SRID handling and safe usage patterns.
maths
by udnisap
Performs numerical and symbolic mathematics using NumPy, SciPy, SymPy, and mpmath. Use when the user needs linear algebra, arrays, optimization, integration, ODEs, symbolic expressions, equation solving, or arbitrary-precision arithmetic.
mungers-lattice
by hexbee
Multidisciplinary analytical engine using Charlie Munger's latticework of mental models. Applies cross-disciplinary thinking (math, physics, biology, psychology, economics) to dissect life and business decisions. Use when user presents a decision problem, investment question, or complex analysis request requiring deep rational analysis.
xlsx
by macnversion
"Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas"
data-analysis
by IHKREDDY
Data analysis workflows and patterns for exploring, transforming, and visualizing data. Use when working with data, creating reports, or when users mention "data analysis", "analyze data", "data exploration", or "reporting".
valuation-calculator
by OctavianYimingZhang
Comprehensive public company valuation using DCF, multiples, comparable analysis, residual income, sum-of-the-parts, and scenario modeling. Accepts Bloomberg Terminal data from screenshots and fetches SEC EDGAR filings for full financial analysis. Produces institutional-grade valuation reports in English.
postgis-nearest
by mmbmf1
Find nearest features efficiently using PostGIS KNN (<->) and distance ordering (with SRID/unit guidance).