A tool for exploring structured data such as CSV, JSON, and newline-delimited JSON files, as well as JSON from web APIs.

Loading data, examining its structure, running SQL queries, aggregating results, and exporting selected records as CSV or JSON.

It lets you inspect, filter, group, and export data with queries instead of manually scanning records.

data-pad — Skill for Claude Code and Codex by JansenAnalytics/claudex

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 JansenAnalytics/claudex --skill data-pad

Clone the repo

git clone --depth 1 https://github.com/JansenAnalytics/claudex

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/jansenanalytics/claudex/data-pad/github.svg)](https://agentmods.dev/skills/jansenanalytics/claudex/data-pad)

Your own site

<a href="https://agentmods.dev/skills/jansenanalytics/claudex/data-pad"><img src="https://agentmods.dev/badge/skills/jansenanalytics/claudex/data-pad/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/jansenanalytics/claudex/data-pad"><img src="https://agentmods.dev/badge/skills/jansenanalytics/claudex/data-pad.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 545 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	$0.00045	$0.00545
Opus 5.5	$0.00018	$0.00218
Sonnet 5.5	$0.00009	$0.00109
Haiku 4.5	$0.00005	$0.00055

Measured 1mo ago against content hash b5277ba4f747, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

data-pad 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.

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-pad/SKILL.md · 74 lines

What it actually says

Data Pad Skill

Use when: the user provides a CSV, JSON, or NDJSON file and wants analysis, filtering, aggregation, or exploration. Also use when you have structured data from an API and want to query it.

Load data

node ${DATA_PAD_HOME:-$HOME/projects/data-pad}/load.cjs --file <path> [--table name] [--db name] [--overwrite]
node ${DATA_PAD_HOME:-$HOME/projects/data-pad}/load.cjs --file data.csv --table customers --db analysis

Supported formats: .csv, .json, .ndjson

Also supports: --url https://... (fetches JSON from URL)

Run a query

node ${DATA_PAD_HOME:-$HOME/projects/data-pad}/query.cjs "SQL here" [--db name]
node ${DATA_PAD_HOME:-$HOME/projects/data-pad}/query.cjs "SELECT country, SUM(revenue) FROM customers GROUP BY country ORDER BY 2 DESC LIMIT 10"

Explore schema

node ${DATA_PAD_HOME:-$HOME/projects/data-pad}/describe.cjs [--db name]

List all databases

node ${DATA_PAD_HOME:-$HOME/projects/data-pad}/list-dbs.cjs

Export results

node ${DATA_PAD_HOME:-$HOME/projects/data-pad}/export.cjs "SELECT ..." --out results.csv [--db name]

Output formats for query

--csv machine-readable CSV
--json JSON array
(default: pretty ASCII table)

Common SQL patterns

-- Top N by value
SELECT name, revenue FROM customers ORDER BY revenue DESC LIMIT 10

-- Aggregation
SELECT country, COUNT(*) as count, AVG(revenue) as avg_rev FROM customers GROUP BY country

-- Filter + count
SELECT COUNT(*) FROM orders WHERE status = 'failed' AND amount > 100

-- Join (if you have multiple tables)
SELECT c.name, SUM(o.amount) FROM customers c JOIN orders o ON c.id = o.customer_id GROUP BY c.id

Databases are stored at

${DATA_PAD_HOME:-$HOME/projects/data-pad}/databases/

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.

INSTALL.md 1.0 KB

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 First seen · 74 lines · 45 tokens per session scan A b5277ba4f747

Subscribe to this mod's changes

data-pad is a skill published in the GitHub repository JansenAnalytics/claudex (5 stars, last pushed 3mo ago), licensed MIT. It adds 45 tokens to every session and 545 once invoked, about $0.0002 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.

Analytics and metrics csv data exploration ndjson sql sqlite

data-pad