Data analysis best practices with pandas, numpy, matplotlib, seaborn, and Jupyter notebooks.

Causal inference specialist for causal discovery, counterfactual reasoning, and effect estimationUse when "causal inference, causal discovery, counterfactual, intervention effect, confounder,...

Systematic debugging frameworks for finding and fixing bugs - includes root cause analysis, defense-in-depth validation, and verification protocols

Expert web researcher using advanced search techniques and

Expert web researcher using advanced search techniques and

Expert web researcher using advanced search techniques and

Expert web researcher using advanced search techniques and

Identify and validate profitable business opportunities by analyzing market size (TAM/SAM/SOM), unit economics, competitive landscape, and PMF indicators. Generates comprehensive HTML reports with...

Knowledge base for the Cadre DevKit. Use when answering questions about the devkit structure, commands, skills, hooks, agents, or workflows.

Transforms research findings into executive-ready briefings. Automatically activated when user mentions 'executive', 'briefing', 'C-suite', 'board', 'leadership', or 'presentation'.

Use this skill when users need to develop brand strategy, choose a company name, define brand positioning, create brand voice, or build brand identity from day one. Activates for "what should I...

Debugging specialist for root cause analysis and problem resolution

Generate a structured deep research prompt. USE WHEN the user needs to research a complex topic, market, or bug deeply. Capabilities include objective clarification, tech stack validation, and...

World-class systematic trading research - backtesting, alpha generation, factor models, statistical arbitrage. Transform hypotheses into edges. Use when "backtest, alpha, factor model, statistical...

App Store optimization skills for descriptions, screenshots, keywords, and review responses. Use when user needs help with App Store presence, ASO, or customer communication.

Use this skill when users need to define their ideal customer profile, identify target personas, map buying centers, or understand who they're selling to. Activates for "who is my customer,"...

Use when creating, editing, evaluating, testing, or verifying ANY skill or skill-related file (SKILL.md, skill resources, skill scripts, or skill assets). If you're asked to evaluate or test a...

This skill should be used when users need to find email addresses associated with a domain. It activates when users ask to scan a domain for emails, find contact emails, discover email addresses,...

First Time User Experience (FTUE) design that teaches through play, hooks players in 30 seconds, and retains them for lifeUse when "tutorial, onboarding, teach player, first time user, FTUE, new...

Use this skill when users need to make early hires, build their founding team, determine compensation/equity, decide who to hire first, or scale from founders to first employees. Activates for...