Math
Mathematical computations, formulas, statistics
nutrition-planner
by LKB-99
"Create personalized nutrition plans, calculate calories/macros, and generate meal ideas. Use this skill for diet planning, weight management, or muscle gain. Triggers: nutrition plan, diet plan, meal plan, calories, macros, recipes, plano alimentar, dieta, calorias, macronutrientes, receitas, emagrecer, ganhar massa."
Damperengineering
by robdtaylor
Hydraulic damper design engineering for customer applications. Mechanical and hydraulic engineering, materials selection (aluminium/steel), seal/O-ring design, DSSV valve specification. USE WHEN user says 'damper design', 'application engineering', 'damper spec', 'customer application', 'damping curve', 'valve sizing', 'seal design', 'O-ring', 'slyde ring', or needs to capture customer damper requirements.
Costengineering
by robdtaylor
Manufacturing cost accounting, analysis, and reduction for automotive operations. Covers overhead/burden rate calculation, variance analysis, make vs buy decisions, value engineering, and cycle time to cost conversion. USE WHEN user says 'cost analysis', 'overhead rate', 'burden rate', 'variance analysis', 'make vs buy', 'value engineering', 'cost reduction', 'should cost', 'labour rate', or needs manufacturing cost guidance.
postgis
by troykelly
MANDATORY when working with geographic data, spatial queries, geometry operations, or location-based features - enforces PostGIS 3.6.1 best practices including ST_CoverageClean, SFCGAL 3D functions, and bigint topology
analyzing-code
by iota9star
Analyzes code statistics by language for project insight, CI/CD metrics, or before refactoring. Use this skill when understanding project composition, measuring change impact, or generating CI/CD metrics
remote-work-negotiation
by founderjourney
Sistema para negociar trabajo remoto y compensacion para Senior Full-Stack Developers. Usar cuando el usuario necesite preparar negociacion salarial, defender trabajo remoto, evaluar ofertas, o responder preguntas sobre compensacion. Activa con palabras como salario, compensacion, remoto, negociar, oferta, equity, beneficios, rate, tarifa. Especializado en developers senior con experiencia SaaS y trabajo remoto internacional.
xlsx
by samhvw8
"Excel spreadsheet processing and analysis. Formats: .xlsx, .xlsm, .csv, .tsv. Capabilities: create spreadsheets, formulas (error-free), formatting, data analysis, charts, pivot tables, conditional formatting, data validation, template preservation. Actions: create, edit, analyze, visualize, recalculate spreadsheets. Keywords: Excel, spreadsheet, xlsx, csv, formula, VLOOKUP, SUMIF, pivot table, chart, graph, data analysis, formatting, conditional formatting, data validation, workbook, worksheet, cell reference, named range, macro. Use when: creating spreadsheets, editing Excel files, analyzing tabular data, building formulas, creating charts/graphs, working with CSV/TSV, preserving spreadsheet templates."
linkedin-mastery
by founderjourney
Sistema completo para optimizar perfiles LinkedIn de desarrolladores senior (IC). Usar cuando el usuario necesite optimizar su perfil LinkedIn, escribir headlines, about sections, descripciones de experiencia laboral, o convertir proyectos tecnicos en narrativas que comuniquen senioridad. Activa con palabras como LinkedIn, perfil, headline, about, experiencia, CV, reclutadores, posicionamiento profesional, branding personal developer. Especializado en Senior Individual Contributors (IC) del mundo tech/SaaS.
saas-financial-projections
by founderjourney
Senior SaaS CFO / Financial Analyst (15+ years) specialized in financial modeling, projections, and exit strategy for bootstrapped and VC-backed SaaS companies. Activate when user needs: (1) Revenue projections (1-5 years), (2) Exit valuation and multiples, (3) Unit economics analysis (CAC, LTV, payback), (4) Scenario modeling (conservative/base/optimistic), (5) Fundraising narratives with financial backing, (6) M&A due diligence financials, (7) SaaS metrics benchmarking, (8) Cohort analysis and churn modeling. Triggers: "proyecciones", "projections", "exit", "valuation", "ARR", "MRR", "multiples", "revenue forecast", "financial model", "exit strategy", "CAC", "LTV", "unit economics", "churn", "fundraising", "M&A", "acquisition", "5 year plan".
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。
openzeppelin-contracts
by hairyf
Secure smart contract library—access control, tokens (ERC20/721/1155/4626/6909), upgradeable contracts, and utilities.
openhue
by Heldinhow
Control Philips Hue lights/scenes via the OpenHue CLI.
procedural-landscapes
by CK42BB
Generate procedural 3D landscapes and terrain in Three.js using WebGPU compute shaders with automatic WebGL2 fallback. Covers heightmap generation via FBM noise, ridged multifractal, and domain warping; chunked LOD terrain meshes; slope-based multi-material texturing; procedural water planes; atmospheric sky rendering; and instanced vegetation scattering. Use when building terrain generators, open-world environments, landscape visualizers, flight simulators, or any 3D scene requiring procedural ground surfaces. Triggers: "procedural terrain", "landscape generator", "heightmap", "terrain mesh", "procedural world", "open world", "terrain LOD", "terrain chunks", "noise terrain", "3D landscape".
bcc
by l0g1x
"Bead Codebase Compiler - Constructs a graph-aware bead representation of any codebase for AI agent navigation. Like gcc compiles code, bcc compiles a codebase into a dependency-rich bead graph optimized for bv's 9 graph metrics (PageRank, betweenness, HITS, critical path, eigenvector, degree, density, cycles, topo sort). Triggers on: bcc, compile beads, bead graph, map codebase, /bcc."
homebrew-formula-updater
by asteroid-belt
Update Homebrew formula files with latest GitHub release URLs and SHA256 checksums. This skill should be used when the user wants to update a Homebrew tap formula (.rb file) with a new version from a GitHub release. Triggers on phrases like "update formula", "update homebrew", "new release", "bump version", or when pointing to a .rb formula file that needs version updates.
xlsx
by Dedalus-ERP-PAS
"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 costa-marcello
"Creates, edits, and analyses spreadsheets with formulas, formatting, and data visualisation. Use when working with .xlsx, .xlsm, .csv, or .tsv files, creating spreadsheets from scratch, reading or analysing tabular data, modifying files while preserving formulas, building financial models, or recalculating formula values."
drawio-diagrams-enhanced
by WingsZeng
This skill should be used when the user asks to "create a diagram", "draw a flowchart", "make a swimlane diagram", "create WBS", "generate RACI matrix", "build network diagram", "create org chart", or mentions draw.io, diagrams.net, BPMN, UML, Gantt, PERT, or project management diagrams. Integrates with next-ai-draw-io MCP server for real-time diagram creation and editing.
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.
A/B Test Designer
by jmsktm
Design statistically valid A/B tests for marketing optimization
git-squash-commits
by acking-you
Squash multiple git commits into a single commit with an auto-generated comprehensive commit message based on the changes made.
conducting-ab-tests
by sumik5
A/B testing and online controlled experiment methodology covering experiment design, statistical analysis (p-values, confidence intervals, sample size), OEC formulation, trustworthiness validation (SRM, novelty effects), and experimentation platform architecture. Use when designing A/B tests, analyzing experiment results, or building experimentation infrastructure. For general software testing, use testing-code instead.
sandbox-service
by Lin-A1
安全隔离的 Docker 沙盒代码执行服务。支持 Python/Shell/Bash 多语言动态执行，内置超时与资源限制。提供信任模式用于服务间代码融合调用。
scientific-computing
by eyadsibai
Use when "scientific computing", "astronomy", "astropy", "bioinformatics", "biopython", "symbolic math", "sympy", "statistics", "statsmodels", "scientific Python"