explore-data

explore-data is a command for Claude Code from fergupa/claude_plugins. It costs 14 tokens per session (1,017 once invoked), scanned A, original, Apache-2.0.

A data-profiling command that examines a database table or uploaded file to describe its structure, quality, and patterns. Profiling means checking what data is present before analyzing it in depth.

In plain words
What is it for?
Use it to inspect tables or CSV, Excel, Parquet, and JSON files, including row counts, columns, data types, size, and date ranges.
Why use it?
It reveals issues such as unexpected types, missing information, unclear date coverage, or unusual values before they affect conclusions.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is If you see unfamiliar placeholders or need to check which tools are connected, see [CONNECTORS.md](../CONNECTORS.md)..

Part of the data plugin — 7 skills, 6 commands shipped together

Good fit Use it to inspect tables or CSV, Excel, Parquet, and JSON files, including row counts, columns, data types, size, and date ranges.

Compare 6 commands from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/fergupa/claude_plugins
agentmods
npx agentmods add commands/fergupa/claude_plugins/explore-data

Made for: Claude Code.

Or install data, the plugin that ships this one along with the rest of its 7 skills, 6 commands.

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 explore-data

README.md
[![agentmods](https://agentmods.dev/badge/commands/fergupa/claude_plugins/explore-data/github.svg)](https://agentmods.dev/commands/fergupa/claude_plugins/explore-data)
Your own site
<a href="https://agentmods.dev/commands/fergupa/claude_plugins/explore-data"><img src="https://agentmods.dev/badge/commands/fergupa/claude_plugins/explore-data/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 explore-data

Your own site · 80×15
<a href="https://agentmods.dev/commands/fergupa/claude_plugins/explore-data"><img src="https://agentmods.dev/badge/commands/fergupa/claude_plugins/explore-data.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,017 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 $0.00014 $0.01017
Opus 5.5 $0.00006 $0.00407
Sonnet 5.5 $0.00003 $0.00203
Haiku 4.5 $0.00001 $0.00102

Measured 1mo ago against content hash 8a3b5f17d07e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

explore-data 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.

data/commands/explore-data.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/explore-data - Profile and Explore a Dataset

If you see unfamiliar placeholders or need to check which tools are connected, see CONNECTORS.md.

Generate a comprehensive data profile for a table or uploaded file. Understand its shape, quality, and patterns before diving into analysis.

Usage

/explore-data <table_name or file>

Workflow

1. Access the Data

If a data warehouse MCP server is connected:

  1. Resolve the table name (handle schema prefixes, suggest matches if ambiguous)
  2. Query table metadata: column names, types, descriptions if available
  3. Run profiling queries against the live data

If a file is provided (CSV, Excel, Parquet, JSON):

  1. Read the file and load into a working dataset
  2. Infer column types from the data

If neither:

  1. Ask the user to provide a table name (with their warehouse connected) or upload a file
  2. If they describe a table schema, provide guidance on what profiling queries to run

2. Generate Data Profile

Run the following profiling checks:

Table-level metrics:

  • Total row count
  • Column count and types breakdown
  • Approximate table size (if available from metadata)
  • Date range coverage (min/max of date columns)

Column-level metrics for each column:

  • Data type (and whether it matches expected type)
  • Null count and null rate (%)
  • Distinct count and cardinality (distinct / total)
  • For numeric columns: min, max, mean, median, stddev, percentiles (p25, p50, p75, p95, p99)
  • For string columns: min/max length, most common values (top 10), empty string count
  • For date/timestamp columns: min, max, distribution by time period
  • For boolean columns: true/false/null distribution

Present the profile as a clean summary table, grouped by column type (dimensions, metrics, dates, IDs).

3. Identify Data Quality Issues

Flag potential problems:

  • High null rates: Columns with >5% nulls (warn), >20% nulls (alert)
  • Low cardinality surprises: Columns that should be high-cardinality but aren't (e.g., a "user_id" with only 50 distinct values)
  • High cardinality surprises: Columns that should be categorical but have too many distinct values
  • Suspicious values: Negative amounts where only positive expected, future dates in historical data, obviously placeholder values (e.g., "N/A", "TBD", "test", "999999")
  • Duplicate detection: Check if there's a natural key and whether it has duplicates
  • Distribution skew: Extremely skewed numeric distributions that could affect averages
  • Encoding issues: Mixed case in categorical fields, trailing whitespace, inconsistent formats

Read the full file on GitHub · 116 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. 1mo ago First seen · 116 lines · 14 tokens per session scan A 8a3b5f17d07e

Subscribe to this mod's changes

explore-data is a command published in the GitHub repository fergupa/claude_plugins (2 stars, last pushed 8mo ago), licensed Apache-2.0. It adds 14 tokens to every session and 1,017 once invoked, about $0.0001 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.