data-exploration

Profile datasets to assess structure, quality, and patterns.

Updated Feb 6, 2026
One-click install
npx skills add https://github.com/lohasle/knowledge-work-plugins --skill data-exploration-lohasle
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: data-exploration
Source: https://github.com/lohasle/knowledge-work-plugins/tree/main/data/skills/data-exploration
Command: npx skills add https://github.com/lohasle/knowledge-work-plugins --skill data-exploration-lohasle

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps you systematically profile datasets, assess their quality, discover patterns, and understand their schemas before diving into complex analysis.

Core Features & Use Cases

  • Structural Understanding: Analyze table and column structures, identify data types, and determine data grain.
  • Column-Level Profiling: Compute null counts, distinct values, distributions, and statistical summaries for each column.
  • Quality Assessment: Evaluate completeness, consistency, accuracy, and timeliness of the data.
  • Pattern Discovery: Identify trends, seasonality, segmentation, and correlations within the data.
  • Use Case: When given a new sales dataset, use this Skill to quickly understand the number of records, identify missing values in key fields like 'customer_id', and visualize the distribution of 'order_value' to spot outliers.

Quick Start

Profile the dataset located at '/data/sales_q1.csv' to understand its structure and identify potential data quality issues.

Frequently Asked Questions about data-exploration

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I profile a dataset to check data quality and understand its structure?▼

Dataset profiling involves systematically assessing table structures, computing null counts, and evaluating completeness to understand data shape and quality before analysis. This process identifies missing values, distinct distributions, and potential schema issues.

What is data profiling and when do I need to run it on my CSV files?▼

Data profiling is the systematic computation of column-level statistics, null counts, and distinct values to assess dataset shape and quality. You need to run it when onboarding new CSV files to discover patterns, identify outliers, and document schemas before analysis.

How do I identify data patterns and outliers in a new sales dataset?▼

To identify data patterns and outliers in a new sales dataset, compute statistical summaries and visualize the distribution of key fields like order value. Pattern discovery techniques reveal trends, seasonality, segmentation, and correlations within the data.

Can I assess data completeness and consistency without writing custom scripts?▼

Yes, you can assess data completeness, consistency, accuracy, and timeliness by running systematic quality assessment checks. These checks evaluate null counts and distinct values across columns to automatically flag structural anomalies and quality issues.

What's the best way to document a dataset schema before starting statistical analysis?▼

The best way to document a dataset schema is to analyze table and column structures, identify data types, and determine data grain. This structural understanding provides the foundational documentation needed to guide accurate statistical analysis.

Does data exploration help with identifying the data grain and structural relationships?▼

Data exploration helps identify data grain and structural relationships by analyzing table and column structures alongside data types. This structural understanding reveals the granularity of your records and how columns relate to each other.