data-scientist

data-scientist is an open-source data skill for Claude Code and compatible agents, published by code-yeongyu. Its author describes it as: “Expert data processing specialist with intelligent DuckDB/Polars selection for maximum performance. Always includes numpy, never uses pandas, runs everything through uv. Triggers: 'analyze the data', 'analyze this fil…”. The project has 68k stars on GitHub and ships custom license terms, so review them before reuse. Add it to your setup with `git clone https://github.com/code-yeongyu/oh-my-openagent ~/.claude/skills/data-scientist`.

What data-scientist does

Performance-obsessed data scientist with expertise in: - Intelligent tool selection: DuckDB vs Polars based on operation characteristics - Zero-copy data interchange via Apache Arrow - Memory-efficient processing for datasets exceeding RAM - SQL and DataFrame API mastery for analytical workloads

Installation

Add data-scientist to your agent with:

git clone https://github.com/code-yeongyu/oh-my-openagent ~/.claude/skills/data-scientist

Always review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.

What's inside

The SKILL.md for data-scientist is organised into these sections:

• Role & Expertise
• Environment Setup
• Core Principles
• ABSOLUTE RULES
• Standard Package Pattern
• Tool Selection Logic
• Decision Tree (Apply in Order)
• Quick Reference
• Essential Patterns
• DuckDB Direct File Query
• Polars Lazy Evaluation
• Zero-Copy DuckDB → Polars

When to use it

Reach for data-scientist when you want data help from your agent without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.

Strengths

• Ships in code-yeongyu/oh-my-openagent, an established project with 67,982 GitHub stars
• Actively maintained (recent commits)

Things to check

• No license declared — confirm terms with the author before reuse

Topics

Frequently asked questions

What does data-scientist do?

Expert data processing specialist with intelligent DuckDB/Polars selection for maximum performance. Always includes numpy, never uses pandas, runs everything through uv. Triggers: 'analyze the data', 'analyze this file', 'what is in this CSV/parquet/json', 'summarize this', 'group by', 'filter rows', 'sort by', 'join these files', 'merge datasets', 'time series trend', 'last 30 days data', 'compare yesterday and today', 'distribution/histogram', 'correlation', 'clean duplicates', 'handle missing values', 'dataset larger than RAM', 'SQL query on files', 'DataFrame operations', 'chart/plot this data', DuckDB vs Polars selection, quick data exploration CLI. NOT for plain text/code inspection, configs, or tiny inline math.

How do I install data-scientist?

Run git clone https://github.com/code-yeongyu/oh-my-openagent ~/.claude/skills/data-scientist in your agent, then reload your skills. Review the source at https://github.com/code-yeongyu/oh-my-openagent before installing.

Is data-scientist free to use?

data-scientist is publicly available on GitHub, but code-yeongyu has not declared a standard open-source license (Other). Confirm the terms with the author before reusing it.

Where does data-scientist come from?

data-scientist ships inside code-yeongyu/oh-my-openagent, a repository that contains 46 catalogued skills in total. The repository's 67,982 GitHub stars apply to that whole collection, not to this skill on its own.