exploratory-data-analysis

exploratory-data-analysis is a skill for Claude Code, Codex from fmschulz/omics-skills. It costs 42 tokens per session (2,760 once invoked), scanned A, original, MIT.

A data-inspection tool that examines scientific files and produces a Markdown report about their structure and quality. It supports common files such as CSV, JSON, HDF5, FASTA, images, and several analysis-data formats.

In plain words
What is it for?
Use it to triage tabular, array, sequence, HDF5, JSON, raster, proteomics, chemistry, and structure files.
Why use it?
It gives you an early view of what a file contains and whether it looks usable before you begin a larger analysis.

Skill for Claude CodeCodex

Part of the omics-skills plugin — 35 skills, 4 agents shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/fmschulz/omics-skills/exploratory-data-analysis
Any agent
npx skills add fmschulz/omics-skills --skill exploratory-data-analysis
Clone the repo
git clone --depth 1 https://github.com/fmschulz/omics-skills

Made for: Claude Code, Codex.

Or install omics-skills, the plugin that ships this one along with the rest of its 35 skills, 4 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for exploratory-data-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/fmschulz/omics-skills/exploratory-data-analysis.svg)](https://agentmods.dev/skills/fmschulz/omics-skills/exploratory-data-analysis)
Your own site
<a href="https://agentmods.dev/skills/fmschulz/omics-skills/exploratory-data-analysis"><img src="https://agentmods.dev/badge/skills/fmschulz/omics-skills/exploratory-data-analysis.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,760 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00042 $0.02760
Opus 5 $0.00021 $0.01380
Sonnet 5 $0.00008 $0.00552
Haiku 4.5 $0.00004 $0.00276

Measured 4d ago against content hash d3d693129817, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

exploratory-data-analysis scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/eda_analyzer.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/exploratory-data-analysis/SKILL.md · 298 lines

How it starts

The opening of the file, as written. The whole thing — 298 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Exploratory Data Analysis

Overview

Inspect scientific files before downstream analysis. The bundled script recognizes more than 100 simple and compound suffixes and writes a bounded Markdown report. It performs content-level analysis only for the common formats listed below; other recognized formats receive file metadata and a reference-catalog entry.

The six reference files contain 239 format entries. Some entries describe the same suffix in different domain contexts, so this is not a count of unique formats or implemented parsers.

Bundled content parsers:

  • NumPy arrays (.npy, .npz), CSV/TSV samples, JSON, and HDF5
  • FASTA and FASTQ, including common gzip-compressed suffixes
  • TIFF/OME-TIFF, PNG, and JPEG raster images
  • Reference-only metadata for every other recognized suffix
  • Representative streaming analyzers for PDB/SDF/SMILES, MGF/mzML/mzXML, and mzTab families; proprietary binary formats remain reference-only unless their project environment supplies a reader.

When to Use This Skill

Use this skill when:

  • User provides a path to a scientific data file for analysis
  • User asks to "explore", "analyze", or "summarize" a data file
  • User wants to understand the structure and content of scientific data
  • User needs a structure-and-quality report before analysis
  • User wants to assess data quality or completeness
  • User asks what type of analysis is appropriate for a file

Quick Reference

Task Action
Unknown file Detect extension and load the matching reference file before analyzing content.
Tabular data Summarize dimensions, types, missingness, ranges, outliers, duplicates, and candidate keys.
Sequence data Count records, length distribution, GC content, quality scores when available, and format issues.
Imaging or arrays Report shape, channels/axes, dtype, value range, metadata, and scale/calibration when present.
Final report Write a concise Markdown EDA report with findings, caveats, and next analysis options.

Read the full file on GitHub · 298 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 298 lines · 42 tokens per session scan A d3d693129817

Subscribe to this mod's changes

exploratory-data-analysis is a skill published in the GitHub repository fmschulz/omics-skills (7 stars, last pushed 9d ago), licensed MIT. It adds 42 tokens to every session and 2,760 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.