data-analysis

data-analysis is a skill for Claude Code, Codex from archimedes-run/omniHarness. It costs 69 tokens per session (2,094 once invoked), scanned A, a copy of data-analysis, MIT.

A tool for analysing uploaded Excel and CSV files using SQL, a language for querying structured data. It can inspect file structure, calculate statistics, combine data, and export results.

In plain words
What is it for?
Use it to inspect workbook sheets and columns, run queries, calculate averages and percentiles, find missing values, join data, and export results as CSV, JSON, or Markdown.
Why use it?
It avoids manually exploring spreadsheets and makes repeatable filtering, grouping, comparisons, and summaries easier.

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/archimedes-run/omniharness/data-analysis
Any agent
npx skills add archimedes-run/omniHarness --skill data-analysis
Clone the repo
git clone --depth 1 https://github.com/archimedes-run/omniHarness

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/archimedes-run/omniharness/data-analysis.svg)](https://agentmods.dev/skills/archimedes-run/omniharness/data-analysis)
Your own site
<a href="https://agentmods.dev/skills/archimedes-run/omniharness/data-analysis"><img src="https://agentmods.dev/badge/skills/archimedes-run/omniharness/data-analysis.svg" alt="Measured on agentmods" height="20"></a>
Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,094 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00069 $0.02094
Opus 5 $0.00034 $0.01047
Sonnet 5 $0.00014 $0.00419
Haiku 4.5 $0.00007 $0.00209

Measured 4d ago against content hash d9383f31df40, 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 4d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/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.

Origin

This is a copy

100% identical to data-analysis — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/public/data-analysis/SKILL.md · 249 lines

How it starts

The opening of the file, as written. The whole thing — 249 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Data Analysis Skill

Overview

This skill analyzes user-uploaded Excel/CSV files using DuckDB — an in-process analytical SQL engine. It supports schema inspection, SQL-based querying, statistical summaries, and result export, all through a single Python script.

Core Capabilities

  • Inspect Excel/CSV file structure (sheets, columns, types, row counts)
  • Execute arbitrary SQL queries against uploaded data
  • Generate statistical summaries (mean, median, stddev, percentiles, nulls)
  • Support multi-sheet Excel workbooks (each sheet becomes a table)
  • Export query results to CSV, JSON, or Markdown
  • Handle large files efficiently with DuckDB's columnar engine

Workflow

Step 1: Understand Requirements

When a user uploads data files and requests analysis, identify:

  • File location: Path(s) to uploaded Excel/CSV files under /mnt/user-data/uploads/
  • Analysis goal: What insights the user wants (summary, filtering, aggregation, comparison, etc.)
  • Output format: How results should be presented (table, CSV export, JSON, etc.)
  • You don't need to check the folder under /mnt/user-data

Step 2: Inspect File Structure

First, inspect the uploaded file to understand its schema:

python /mnt/skills/public/data-analysis/scripts/analyze.py \
  --files /mnt/user-data/uploads/data.xlsx \
  --action inspect

This returns:

  • Sheet names (for Excel) or filename (for CSV)
  • Column names, data types, and non-null counts
  • Row count per sheet/file
  • Sample data (first 5 rows)

Step 3: Perform Analysis

Based on the schema, construct SQL queries to answer the user's questions.

Run SQL Query
python /mnt/skills/public/data-analysis/scripts/analyze.py \
  --files /mnt/user-data/uploads/data.xlsx \
  --action query \
  --sql "SELECT category, COUNT(*) as count, AVG(amount) as avg_amount FROM Sheet1 GROUP BY category ORDER BY count DESC"
Generate Statistical Summary
python /mnt/skills/public/data-analysis/scripts/analyze.py \
  --files /mnt/user-data/uploads/data.xlsx \
  --action summary \
  --table Sheet1

Read the full file on GitHub · 249 lines

Files

What ships with it

1 file 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. 4d ago First seen · 249 lines · 69 tokens per session scan A d9383f31df40

Subscribe to this mod's changes

data-analysis is a skill published in the GitHub repository archimedes-run/omniHarness (6 stars, last pushed 9d ago), licensed MIT. It adds 69 tokens to every session and 2,094 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to data-analysis, differing in 0 lines, and is treated as a copy.

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