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A data analyst skill that guides Claude through structured, professional data analysis workflows. Use this skill when the user requests data analysis work including analyze, query, dashboard, metrics, EDA, coho...
Explains the mathematical principles behind Elo rating systems, including expected score calculation, rating updates, and the K-factor. Use when implementing or understanding competitive rating systems.
Analyze web measurement data with Python/pandas/SQL. Use when user mentions 'analyze data', 'traffic analysis', 'statistics', 'pandas', 'SQL query', or 'plot results'.
This skill MUST be used when the user asks to "analyze issue", "plan implementation", "how to fix issue", "create plan for ticket", "what's needed for this issue", "implementation strategy", "analyze Jira ticke...
Use this skill for early-stage project planning through Product Requirements Documents (PRDs). Guides users from initial project ideas through product briefs, market research, PRD creation, validation, and epic...
Comprehensive web research with synthesis and actionable insights
Meta-analysis frameworks and methods for mediation studies
Sensitivity analysis frameworks and assumption-testing methods
Knowledge and patterns for understanding project structures, architectures, and codebases.
Specialized skill for analyzing company Cash Flow Statements (Statement of Cash Flows). Use when evaluating a company's cash generation (Operating Activities), capital allocation (Investing Activities), and fin...
Analyze income statements (P&L statements) to assess company financial performance. Use when evaluating revenue quality, margins (gross, operating, net), expense structure, profitability trends, or comparing fi...
Analyze balance sheets to assess company financial health, liquidity, and solvency. Use when evaluating assets, liabilities, shareholders' equity, debt levels, working capital, or financial position. Triggers o...
Create professional financial charts and visualizations using Python/Plotly. Use when building Sankey diagrams (income statement flows, revenue breakdowns), waterfall charts (profit walkdowns, revenue bridges),...
Advanced analytics including machine learning, predictive modeling, and big data techniques
BI tools, dashboards, and enterprise analytics platforms
Advanced Excel and spreadsheet analytics techniques
Automated reporting and business intelligence delivery
Data analyst career development, portfolio building, and professional growth strategies
Professional security report generation, executive summaries, finding documentation, and remediation tracking
Use when building selection algorithms that must balance multiple diversity/coverage constraints (e.g., selecting test cases, sampling datasets, portfolio optimization). Especially useful when hard co...
Provides expert design guidance for creating truthful, clear, beautiful data visualizations. Focuses on **DESIGN DECISIONS ONLY**—chart selection, color strategy, visual encoding, and validation. Assumes data i...
Automate Gemini Deep Research using the official API. Use for Phase 3 policy analysis, regulatory frameworks, and strategic context research. Handles API submission, polling (3-10 min), and result extraction. R...
Generate McKinsey-style board presentation PPTs from weekly auto insurance data. Automatically calculates 16+ KPIs, creates executive-level slides with actionable insights, and supports week-over-week compariso...
Conducts external research for competitive analysis, standards, and APIs
The default order uses GitHub repository stars from our indexed data. Stars belong to the source repository and may be shared by multiple skills. They indicate repository interest, not skill installs or an independent quality score.