csv-data-summarizer

csv-data-summarizer is a skill for Claude Code, Codex from w95/awesome-claude-corporate-skills. It costs 25 tokens per session (1,262 once invoked), scanned A, original, MIT.

A tool for automatically examining CSV files, which are plain-text tables of rows and columns, with Python and pandas. It produces summary statistics and quick charts.

In plain words
What is it for?
Use it to inspect, summarize, analyze, and visualize tabular data stored in CSV files.
Why use it?
It gives an immediate overview of a file’s structure, values, and possible patterns without requiring the user to specify each analysis.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to inspect, summarize, analyze, and visualize tabular data stored in CSV files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/w95/awesome-claude-corporate-skills/csv-data-summarizer
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 w95/awesome-claude-corporate-skills --skill csv-data-summarizer
Clone the repo
git clone --depth 1 https://github.com/w95/awesome-claude-corporate-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 csv-data-summarizer

README.md
[![agentmods](https://agentmods.dev/badge/skills/w95/awesome-claude-corporate-skills/csv-data-summarizer/github.svg)](https://agentmods.dev/skills/w95/awesome-claude-corporate-skills/csv-data-summarizer)
Your own site
<a href="https://agentmods.dev/skills/w95/awesome-claude-corporate-skills/csv-data-summarizer"><img src="https://agentmods.dev/badge/skills/w95/awesome-claude-corporate-skills/csv-data-summarizer/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.

agentmods 80×15 button for csv-data-summarizer

Your own site · 80×15
<a href="https://agentmods.dev/skills/w95/awesome-claude-corporate-skills/csv-data-summarizer"><img src="https://agentmods.dev/badge/skills/w95/awesome-claude-corporate-skills/csv-data-summarizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,262 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00025 $0.01262
Opus 5 $0.00013 $0.00631
Sonnet 5 $0.00005 $0.00252
Haiku 4.5 $0.00003 $0.00126

Measured 7d ago against content hash 1599338ac2db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

csv-data-summarizer 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 7d ago.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

10-data-analytics/csv-data-summarizer/SKILL.md · 150 lines

How it starts

The opening of the file, as written. The whole thing — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CSV Data Summarizer

This Skill analyzes CSV files and provides comprehensive summaries with statistical insights and visualizations.

When to Use This Skill

Claude should use this Skill whenever the user:

  • Uploads or references a CSV file
  • Asks to summarize, analyze, or visualize tabular data
  • Requests insights from CSV data
  • Wants to understand data structure and quality

How It Works

⚠️ CRITICAL BEHAVIOR REQUIREMENT ⚠️

DO NOT ASK THE USER WHAT THEY WANT TO DO WITH THE DATA. DO NOT OFFER OPTIONS OR CHOICES. DO NOT SAY "What would you like me to help you with?" DO NOT LIST POSSIBLE ANALYSES.

IMMEDIATELY AND AUTOMATICALLY:

  1. Run the comprehensive analysis
  2. Generate ALL relevant visualizations
  3. Present complete results
  4. NO questions, NO options, NO waiting for user input

THE USER WANTS A FULL ANALYSIS RIGHT AWAY - JUST DO IT.

Automatic Analysis Steps:

The skill intelligently adapts to different data types and industries by inspecting the data first, then determining what analyses are most relevant.

  1. Load and inspect the CSV file into pandas DataFrame

  2. Identify data structure - column types, date columns, numeric columns, categories

  3. Determine relevant analyses based on what's actually in the data:

    • Sales/E-commerce data (order dates, revenue, products): Time-series trends, revenue analysis, product performance
    • Customer data (demographics, segments, regions): Distribution analysis, segmentation, geographic patterns
    • Financial data (transactions, amounts, dates): Trend analysis, statistical summaries, correlations
    • Operational data (timestamps, metrics, status): Time-series, performance metrics, distributions
    • Survey data (categorical responses, ratings): Frequency analysis, cross-tabulations, distributions
    • Generic tabular data: Adapts based on column types found
  4. Only create visualizations that make sense for the specific dataset:

    • Time-series plots ONLY if date/timestamp columns exist
    • Correlation heatmaps ONLY if multiple numeric columns exist
    • Category distributions ONLY if categorical columns exist
    • Histograms for numeric distributions when relevant

Read the full file on GitHub · 150 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. 7d ago First seen · 150 lines · 25 tokens per session scan A 1599338ac2db

Subscribe to this mod's changes

csv-data-summarizer is a skill published in the GitHub repository w95/awesome-claude-corporate-skills (195 stars, last pushed 6mo ago), licensed MIT. It adds 25 tokens to every session and 1,262 once invoked, about $0.0001 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 2026-09-03.

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