A tool that profiles a CSV file—a plain-text table of rows and columns—by examining its columns, values, missing data, duplicates, and unusual entries.

Use it to identify column types, ranges, averages, unique and frequent values, empty columns, duplicate rows, outliers, and overly long text.

It quickly reveals the shape and quality of a dataset before you load it into a database or use it for machine learning.

csv-pro — Skill for Claude Code by bestdeejay-design/agent-skills

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.

Any agent

npx skills add bestdeejay-design/agent-skills --skill csv-pro

Clone the repo

git clone --depth 1 https://github.com/bestdeejay-design/agent-skills

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/csv-pro/github.svg)](https://agentmods.dev/skills/bestdeejay-design/agent-skills/csv-pro)

Your own site

<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/csv-pro"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/csv-pro/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/csv-pro"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/csv-pro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 205 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,144 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00205	$0.01144
Opus 5.5	$0.00082	$0.00458
Sonnet 5.5	$0.00041	$0.00229
Haiku 4.5	$0.00020	$0.00114

Measured 1mo ago against content hash 7d994359eacc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

csv-pro 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 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/csv_pro.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/csv-pro/SKILL.md · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CSV Pro

Профилирование CSV-файлов: типы колонок, статистика, аномалии.

Загружай этот скилл когда нужно быстро понять, что лежит в CSV: типы колонок, диапазоны значений, пропуски, дубликаты и выбросы.

🎯 When to use

Use this skill when:

Есть CSV-файл и нужно понять его структуру: типы колонок, min/max/mean, уникальные значения
Нужно проверить качество данных перед загрузкой в БД или ML-пайплайн
Просят «профиль csv», «анализ csv», «что в csv», «csv anomalies»
Нужен отчёт об аномалиях: пустые колонки, дубликаты строк, выбросы, длинные строки

Do NOT use when:

Нужна полная аналитика с корреляциями и рекомендациями — это data-analysis
Нужны SQL-запросы к данным — это sql-helper
Нужно просто посчитать строки или суммы — проще wc -l и awk

📦 Files

SKILL.md — этот файл
scripts/csv_pro.py — профилировщик CSV (Python 3 stdlib)

🧰 Usage

# Файл → markdown-профиль (по умолчанию):
python3 skills/csv-pro/scripts/csv_pro.py --input data.csv

# Файл → JSON:
python3 skills/csv-pro/scripts/csv_pro.py --input data.csv --output json

# Файл → HTML с графиками:
python3 skills/csv-pro/scripts/csv_pro.py --input data.csv --output html

# Из stdin (текст прямо в пайплайне):
cat data.csv | python3 csv_pro.py --stdin

# Явный разделитель:
python3 csv_pro.py --input data.csv --delimiter ';'

Canonical analogues

Полный справочник канонических паттернов — references/canonical-patterns.md. Топ-аналоги и их takeaways:

ydata-profiling — эталонный набор метрик (skewness, kurtosis, quantiles, MAD, infinite counters) и 18 типов алертов.
csvkit csvstat — CLI-эталон: csvstat data.csv --json, метрики len и maxprecision.
DuckDB SUMMARIZE — SQL-профиль с approx-квантилями и null_percentage.
Great Expectations — словарь проверяемых утверждений (63 core-ожидания).
dataprep.EDA — типизированные инсайты: Zeros, Negatives, Constant Length, High Cardinality.

🔬 Проверка результата

Markdown: таблица «Колонки» (тип, уникальные, пустые, min/max/mean, топ-3) + секция «Аномалии».
JSON: валидный JSON с полями columns и anomalies — проверка python3 -m json.tool.
HTML: интерактивный дашборд с гистограммами для числовых колонок и bar charts для категорий.
Пустой файл: сообщение «Файл пуст», код 0.
Отсутствующий файл: сообщение в stderr, код 1.

Read the full file on GitHub · 82 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.

1mo ago Changed · +9 lines 7d994359eacc
1mo ago Changed · +4 lines · +4 tokens per session b88d404a4300
1mo ago First seen · 69 lines · 201 tokens per session scan A 1aea8dfb8740

Subscribe to this mod's changes

csv-pro is a skill published in the GitHub repository bestdeejay-design/agent-skills (5 stars, last pushed 1mo ago), licensed MIT. It adds 205 tokens to every session and 1,144 once invoked, about $0.0008 per session on Opus 5.5. 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.

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