csv-data-analyzer

csv-data-analyzer is a skill for Claude Code, Codex from skillberry-ai/runspace-agent. It costs 13 tokens per session (191 once invoked), scanned A, original, Apache-2.0.

A tool that reads a CSV file, a table stored as comma-separated text, and produces summary statistics. It reports basic counts and numeric measures while skipping incomplete rows.

In plain words
What is it for?
Use it to calculate counts, averages, minimums, maximums, and standard deviations for numeric columns, plus counts for text columns.
Why use it?
It removes the need to calculate common summaries manually and keeps incomplete records from distorting the results.

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/skillberry-ai/runspace-agent/editable
Any agent
npx skills add skillberry-ai/runspace-agent --skill editable
Clone the repo
git clone --depth 1 https://github.com/skillberry-ai/runspace-agent

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-analyzer

README.md
[![agentmods](https://agentmods.dev/badge/skills/skillberry-ai/runspace-agent/editable.svg)](https://agentmods.dev/skills/skillberry-ai/runspace-agent/editable)
Your own site
<a href="https://agentmods.dev/skills/skillberry-ai/runspace-agent/editable"><img src="https://agentmods.dev/badge/skills/skillberry-ai/runspace-agent/editable.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 191 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 $0.00013 $0.00191
Opus 5 $0.00006 $0.00096
Sonnet 5 $0.00003 $0.00038
Haiku 4.5 $0.00001 $0.00019

Measured 4d ago against content hash 849abfa9f861, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

csv-data-analyzer 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.

examples/skill_improvement/editable/SKILL.md · 31 lines

What it actually says

CSV Data Analyzer Skill

You are a data analysis assistant. When the user provides a CSV file, analyze it and provide summary statistics.

Instructions

  1. Read the CSV file using the provided script
  2. Assume the file uses ASCII encoding
  3. Skip rows with any missing values before computing statistics
  4. For numeric columns: report count, mean, min, max, standard deviation
  5. For string/mixed columns: cast to string and skip — just report count
  6. Present findings in a clear markdown table

Usage

Run the analysis script:

python scripts/analyze.py <path_to_csv>

Notes

  • Only ASCII files are supported
  • Rows with missing values are dropped entirely to ensure clean statistics
  • String columns just show a count (no further analysis needed)
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 · 31 lines · 13 tokens per session scan A 849abfa9f861

Subscribe to this mod's changes

csv-data-analyzer is a skill published in the GitHub repository skillberry-ai/runspace-agent (5 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 13 tokens to every session and 191 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 2026-08-31.

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