Use this skill when exploring an unfamiliar dataset, investigating data quality issues, validating data pipeline outputs before production use, reviewing SQL queries for correctness and performance, or producing a data quality scorecard for a data asset.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Exploratory Data Analysis
## Overview
Systematic framework for exploratory data analysis, data quality validation, and query correctness review. Designed for data analysts, data engineers, and AI agents who need to understand, validate, and document data assets before building on them.
## When to Use
- Exploring an unfamiliar dataset for the first time
- Investigating data quality concerns (wrong totals, unexpected nulls, stale data)
- Validating data pipeline outputs before downstream consumption
- Reviewing SQL or data transformation queries for correctness
- Onboarding a new data source and assessing its quality profile
- Producing a formal data quality scorecard
- Analysing root cause of metric changes (drops, spikes)
- Preparing data for reporting or dashboard consumption
## 1: Exploratory Data Analysis (EDA)
### Load and Profile
Start by understanding the data's shape and basic characteristics:
```python
import pandas as pd
import numpy as np
df = pd.read_parquet('data.parquet') # or CSV, DB export, etc.
# Basic shape
print(f"Shape: {df.shape}")
print(f"Columns: {list(df.columns)}")
print(f"Dtypes:\n{df.dtypes}")
# Summary statistics for numeric columns
…
The line at the top of this page pins the label git:20261026.ddc2cce, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_xty7rv3jbk3k7b5z
GET https://markdownregistry.com/api/v1/resolve?ref=jpeetz/agent-skills/exploratory-data-analysis
GET https://markdownregistry.com/api/v1/blob/6d91eeefc54cf60e7561b51a8e6509db2de4e4dc40c515a6fed13118ce1731f8
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
jpeetz/agent-skills · skills/api-backend/api-and-interface-design/SKILL.md · Use this skill when designing APIs, module boundaries, or any public interface. Create stable, well-documented…
jpeetz/agent-skills · skills/api-backend/api-design-first/SKILL.md · Use this skill when designing an API or defining an API contract before writing code. Generates OpenAPI 3.1…
jpeetz/agent-skills · skills/api-backend/graphql-api-development/SKILL.md · Use this skill when designing, implementing, or optimizing a GraphQL API: schema-first design, resolver architecture…
jpeetz/agent-skills · skills/api-backend/har-api-reverse-engineering/SKILL.md · Use this skill when an agent needs to call a website's hidden or undocumented API: capture real browser requests into a…
jpeetz/agent-skills · skills/api-backend/image-to-image-character-generation/SKILL.md · Use this skill when an agent needs to generate consistent character images via kie.ai grok-imagine image-to-image from…
jpeetz/agent-skills · skills/api-backend/kie-ai-platform/SKILL.md · Use this skill when an agent needs to integrate with the Kie.ai API for image/video/audio generation, task management…
jpeetz/agent-skills · skills/api-backend/n8n-api-shape/SKILL.md · Use this skill when working with the n8n REST API — read, update, or verify workflows on ANY n8n instance…
jpeetz/agent-skills · skills/api-backend/social-har-api-connectivity/SKILL.md · Use this skill when an agent needs to connect to a social platform's API by prompting the user to pick a platform…
jpeetz/agent-skills · skills/business-strategy/app-discovery-scrutiny/SKILL.md · Use this skill when the user wants to evaluate a mobile app idea for commercial viability — whether it's a clone…
jpeetz/agent-skills · skills/business-strategy/enterprise-consulting-methods/SKILL.md · Use this skill when you need McKinsey/BCG-grade strategy work — problem decomposition, hypothesis testing, storyline…
jpeetz/agent-skills · skills/business-strategy/linear-project-management/SKILL.md · Use this skill when driving Linear projects and issues from an agent.
jpeetz/agent-skills · skills/code-quality/clean-pro-review-gates/SKILL.md · Use this skill when reviewing any AI-generated or modified code, tests, docs, or infrastructure before merging. Applies…
foryourhealth111-pixel/vibe-skills · bundled/skills/exploratory-data-analysis/SKILL.md · Perform comprehensive exploratory data analysis on scientific data files across 200+ file formats. This skill should be…
oleafly/oleafly · src-tauri/resources/skills/exploratory-data-analysis/SKILL.md · Perform bounded, local exploratory analysis of explicitly supported scientific files. Use for redacted CSV/TSV/JSON…
jaechang-hits/sciagent-skills · skills/scientific-computing/exploratory-data-analysis/SKILL.md · Methodology for exploratory data analysis on scientific files. Decision frameworks by data type (tabular, sequence…
fmschulz/omics-skills · skills/exploratory-data-analysis/SKILL.md · Inspect a scientific data file and report its structure and quality. Use when triaging an unknown table, array…
marielynneblock/arcanum-artifex · skills/data-science/exploratory-data-analysis/SKILL.md · Perform comprehensive exploratory data analysis on scientific data files across 200+ file formats. This skill should be…