data-analysis

data-analysis is a skill for Claude Code, Codex from bestdeejay-design/agent-skills. It costs 157 tokens per session (1,517 once invoked), scanned A, original, MIT.

A tool that profiles a CSV or JSON dataset—a collection of structured records—and reports its fields, distributions, relationships, and unusual values.

In plain words
What is it for?
Use it to inspect types, missing and unique values, ranges, averages, common values, numeric histograms, correlations, anomalies, and cleanup suggestions.
Why use it?
It helps you understand what the data contains and what may need cleaning before analysis or modelling.

Skill for Claude CodeCodex

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/bestdeejay-design/agent-skills/data-analysis
Any agent
npx skills add bestdeejay-design/agent-skills --skill data-analysis
Clone the repo
git clone --depth 1 https://github.com/bestdeejay-design/agent-skills

Made for: Claude Code, Codex.

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 data-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/data-analysis.svg)](https://agentmods.dev/skills/bestdeejay-design/agent-skills/data-analysis)
Your own site
<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/data-analysis"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/data-analysis.svg" alt="Measured on agentmods" height="20"></a>
Per session 157 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,517 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 $0.00157 $0.01517
Opus 5 $0.00078 $0.00758
Sonnet 5 $0.00031 $0.00303
Haiku 4.5 $0.00016 $0.00152

Measured today against content hash 77dbd44e859e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 today.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/data_analyze.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/data-analysis/SKILL.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Data Analysis

Профилирование датасета: статистика полей, корреляции, аномалии и рекомендации.

Загружай этот скилл когда нужно разобраться в данных: понять типы полей, распределения, пропуски, корреляции между числовыми полями и что стоит почистить перед анализом или моделированием.

🎯 When to use

Use this skill when:

  • Есть CSV или JSON-массив объектов и нужен профиль датасета (EDA)
  • Нужно понять типы полей, пропуски, распределения и выбросы
  • Просят «проанализировать данные», «почитать данные», «сделать EDA»
  • Нужны корреляции между числовыми полями и рекомендации по очистке данных

Do NOT use when:

  • Нужен SQL-запрос к базе данных — это sql-helper
  • Нужна обработка CSV как таблицы (фильтры, join, преобразования) — это csv-pro
  • Нужны графики/визуализации — скрипт выдаёт текстовый отчёт (markdown/JSON), не картинки

📦 Files

  • SKILL.md — этот файл
  • scripts/data_analyze.py — профилировщик датасета (Python 3 stdlib)
  • references/canonical-patterns.md — эталонные EDA-паттерны канонических инструментов

Canonical analogues

Эталонные EDA-паттерны и gap-анализ скрипта против канонических инструментов — в references/canonical-patterns.md. Топ-аналоги:

  • ydata-profiling — эталонная структура отчёта (Overview/Alerts/Variables/Correlations/Missing/Sample) и алерты качества с порогами.
  • sweetviz — целевой анализ (target_feat) и mixed-type ассоциации (uncertainty coefficient, correlation ratio).
  • DuckDB SUMMARIZE — профилирование одной SQL-командой: min/max/approx_unique/avg/std/q25/q50/q75/null_percentage.
  • D-Tale — интерактивный GUI: Describe, Outlier Detection, Duplicates, Missing Analysis, Predictive Power Score.
  • skimr / DataExplorer (R) — консольное профилирование по типам и метрики introduce() (memory_usage, complete_rows).

🧰 Usage

# CSV → markdown-отчёт (по умолчанию):
python3 skills/data-analysis/scripts/data_analyze.py --input data.csv

# JSON-массив объектов → markdown-отчёт:
python3 skills/data-analysis/scripts/data_analyze.py --input data.json

# JSON-отчёт (для программного использования):
python3 skills/data-analysis/scripts/data_analyze.py --input data.csv --output json

# HTML-отчёт с графиками:
python3 skills/data-analysis/scripts/data_analyze.py --input data.csv --output html

# Топ-5 значений вместо 10 и свой заголовок:
python3 skills/data-analysis/scripts/data_analyze.py --input data.csv --top 5 --title "Продажи 2026"

Read the full file on GitHub · 106 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. today Changed · +31 lines · +4 tokens per session 77dbd44e859e
  2. 5d ago First seen · 75 lines · 153 tokens per session scan A a5b299fb505a

Subscribe to this mod's changes

data-analysis is a skill published in the GitHub repository bestdeejay-design/agent-skills (5 stars, last pushed today), licensed MIT. It adds 157 tokens to every session and 1,517 once invoked, about $0.0008 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.