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Analista de Dados

Especialista em SQL, pandas e análise estatística para exploração de dados e geração de insights.

O que é Analista de Dados?

Esta habilidade transforma o agente em um analista de dados especializado, com proficiência em SQL, Python (pandas) e análise estatística. Ela é ativada sempre que o usuário precisar escrever consultas SQL, analisar datasets com pandas, realizar análises estatísticas, limpar ou transformar dados, ou identificar padrões e insights. O agente pode lidar com consultas SQL complexas (joins, subconsultas, CTEs, funções de janela), manipulações avançadas de pandas (agrupamentos, pivots, séries temporais), e aplicar desde estatísticas descritivas básicas até testes de hipóteses e modelos preditivos simples. Ao fornecer respostas, o agente inclui código bem comentado, exemplos de resultados, considerações de desempenho e interpretações claras dos achados. Ideal para fluxos de trabalho de análise de dados que envolvem bancos de dados relacionais e Python.

Funciona com~Claude Code~Codex CLI~Cursor
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Documentação

O que Analista de Dados faz?

Você é um analista de dados especialista em SQL, Python (pandas) e análise estatística.

Quando Aplicar

Use esta habilidade quando:

  • Escrevendo consultas SQL para extração de dados
  • Analisando conjuntos de dados com pandas
  • Realizando análises estatísticas
  • Criando transformações de dados
  • Identificando padrões e insights em dados
  • Limpeza e preparação de dados

Competências Principais

SQL

  • Consultas complexas com JOINs, subconsultas, CTEs
  • Funções de janela e agregações
  • Otimização de consultas
  • Compreensão de design de banco de dados

pandas

  • Manipulação e transformação de dados
  • Agrupamento, filtragem, pivoteamento
  • Análise de séries temporais
  • Tratamento de dados ausentes

Estatística

  • Estatística descritiva
  • Teste de hipóteses
  • Análise de correlação
  • Modelagem preditiva básica

Formato de Saída

Forneça consultas SQL e código pandas com:

  • Comentários claros
  • Resultados de exemplo
  • Considerações de desempenho
  • Interpretação dos resultados

Criado para análise de dados e fluxos de trabalho SQL/pandas

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

academic-researcher

Academic research assistant for literature reviews, paper analysis, and scholarly writing. Use when: reviewing academic papers, conducting literature reviews, writing research summaries, analyzing methodologies, formatting citations, or when user mentions academic research, scholarly writing, papers, or scientific literature.

chatgpt-app-builder

DEPRECATED: This skill has been replaced by `mcp-app-builder`. Check if `mcp-app-builder` is available in the skills folder. If not, install it: `npx skills install mcp-use/mcp-use --skill mcp-app-builder` Use `mcp-app-builder` instead of this skill. Build ChatGPT apps with interactive widgets using mcp-use and OpenAI Apps SDK. Use when creating ChatGPT apps, building MCP servers with widgets, defining React widgets, working with Apps SDK, or when user mentions ChatGPT widgets, mcp-use widgets, or Apps SDK development.

code-reviewer

Thorough code review with focus on security, performance, and best practices. Use when: reviewing code, performing security audits, checking for code quality, reviewing pull requests, or when user mentions code review, PR review, security vulnerabilities, performance issues.

content-creator

Creates engaging content for blogs, social media, and marketing materials with audience focus. Use when: writing blog posts, creating social media content, developing marketing copy, crafting engaging headlines, or when user mentions content creation, blogging, social media, or audience engagement.

content-writer

Writes marketing copy for landing pages, emails, and social media posts. Use when creating promotional content, sales copy, or brand messaging.

debugger

Systematic debugging and root cause analysis for identifying and fixing software issues. Use when: debugging errors, troubleshooting bugs, investigating crashes, analyzing stack traces, fixing broken code, or when user mentions debugging, error, bug, crash, or "not working".

decision-helper

Structured decision-making frameworks for evaluating options and making informed choices. Use when: making decisions, evaluating options, weighing trade-offs, or when user needs help choosing between alternatives, analyzing pros/cons, or making structured decisions.

deep-research

Comprehensive research assistant that synthesizes information from multiple sources with citations. Use when: conducting in-depth research, gathering sources, writing research summaries, analyzing topics from multiple perspectives, or when user mentions research, investigation, or needs synthesized analysis with citations.

editor

Professional editing and proofreading for clarity, grammar, style, and readability improvements. Use when: editing text, proofreading documents, improving clarity, fixing grammar, refining style, or when user asks to "edit", "proofread", "improve", "revise", or mentions grammar and readability.

email-drafter

Professional email composition for business communication across various contexts. Use when: writing emails, drafting professional messages, composing replies, or when user mentions email, message drafting, or needs help with business correspondence.

fact-checker

Systematic fact verification and misinformation identification using evidence-based analysis. Use when: verifying claims, checking facts, identifying misinformation, evaluating source credibility, or when user asks to "fact check", "verify", "is this true", or mentions claims that need validation.

fullstack-developer

Modern web development expertise covering React, Node.js, databases, and full-stack architecture. Use when: building web applications, developing APIs, creating frontends, setting up databases, deploying web apps, or when user mentions React, Next.js, Express, REST API, GraphQL, MongoDB, PostgreSQL, or full-stack development.

mcp-apps-builder

**MANDATORY for ALL MCP server work** - mcp-use framework best practices and patterns. **READ THIS FIRST** before any MCP server work, including: - Creating new MCP servers - Modifying existing MCP servers (adding/updating tools, resources, prompts, widgets) - Debugging MCP server issues or errors - Reviewing MCP server code for quality, security, or performance - Answering questions about MCP development or mcp-use patterns - Making ANY changes to server.tool(), server.resource(), server.prompt(), or widgets This skill contains critical architecture decisions, security patterns, and common pitfalls. Always consult the relevant reference files BEFORE implementing MCP features.

mcp-builder

DEPRECATED: This skill has been replaced by `mcp-app-builder`. Check if `mcp-app-builder` is available in the skills folder. If not, install it: `npx skills install mcp-use/mcp-use --skill mcp-app-builder` Use `mcp-app-builder` instead of this skill. Build Model Context Protocol (MCP) servers with mcp-use framework. Use when creating MCP servers, defining tools/resources/prompts, working with mcp-use, bootstrapping MCP projects, or when user mentions MCP development, tools, resources, or prompts.

meeting-notes

Structured meeting summaries with action items, decisions, and key discussion points. Use when: taking meeting notes, summarizing discussions, tracking action items, or when user mentions meeting notes, minutes, action items, or needs structured meeting documentation.

project-planner

Breaks down complex projects into actionable tasks with timelines, dependencies, and milestones. Use when: planning projects, creating task breakdowns, defining milestones, estimating timelines, managing dependencies, or when user mentions project planning, roadmap, work breakdown, or task estimation.

python-expert

Senior Python developer expertise for writing clean, efficient, and well-documented code. Use when: writing Python code, optimizing Python scripts, reviewing Python code for best practices, debugging Python issues, implementing type hints, or when user mentions Python, PEP 8, or needs help with Python data structures and algorithms.

sprint-planner

Agile sprint planning with story estimation, capacity planning, and sprint goal setting. Use when: planning sprints, estimating stories, defining sprint goals, managing sprint backlogs, or when user mentions sprint planning, agile, scrum, story points, or sprint capacity.

strategy-advisor

High-level strategic thinking and business decision guidance for planning and direction-setting. Use when: making strategic decisions, evaluating business options, setting direction, analyzing trade-offs, or when user mentions strategy, business planning, competitive analysis, or long-term planning.

technical-writer

Creates clear documentation, API references, guides, and technical content for developers and users. Use when: writing documentation, creating README files, documenting APIs, writing tutorials, creating user guides, or when user mentions documentation, technical writing, or needs help explaining technical concepts clearly.

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