csv-profiler SKILL.md skillA

csv-profiler from lethe044/agentskill-kit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add lethe044/agentskill-kit/csv-profiler@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
lethe044/agentskill-kit
Path
skills/csv-profiler/SKILL.md
Versions recorded
1
Latest version
v1.0.0, committed Oct 26, 2026
Size
1,656 bytes
Repository stars
48
License
MIT

Profiles a CSV file column by column, reporting inferred type, missing values, unique counts and min, max and mean for numeric columns. Use when the user hands over a CSV and asks what is in it, whether the data is clean, or what to check before analysis.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# CSV profiler

Gives an agent a reliable picture of a CSV file before it writes any analysis code.

## When to use

- The user uploads or points to a CSV and asks "what is in this file?".
- Before cleaning, joining or plotting data, to find empty columns and mixed types.
- When a script fails on a column and the user suspects bad values.

## How to run

```bash
python scripts/profile_csv.py data.csv
python scripts/profile_csv.py data.tsv --delimiter tab
```

The delimiter is detected automatically when it is not given. Use `--delimiter tab` for tab separated files.

## Output

JSON with `rows`, `columns` and a `profile` list. Each column has `name`, `type`
(`integer`, `float`, `boolean`, `date`, `string` or `empty`), `missing`, `unique`, `sample`
and, for numeric columns, `min`, `max` and `mean`.

## Reading the result

- A column with a large `missing` count needs a decision: drop it, fill it, or ask the user.
- A `string` column whose `unique` count is close to `rows` is probably an identifier.
- A `string` column with few unique values is a good candidate for a categorical type.
- Report surprises first: mixed types, empty columns, duplicated headers.

## Errors
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add lethe044/agentskill-kit/csv-profiler@sha256:deec5ae68040de08

The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_r4labmuzzetedbvh.svg)](https://markdownregistry.com/a/art_r4labmuzzetedbvh)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 26, 2026.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-10-26 6eb8fc4 1,656 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (1656 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

lethe044/agentskill-kit · 48 stars · license MIT · pushed 2026-10-26 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_r4labmuzzetedbvh
GET https://markdownregistry.com/api/v1/resolve?ref=lethe044/agentskill-kit/csv-profiler
GET https://markdownregistry.com/api/v1/blob/deec5ae68040de087bcb94f77ae5df4e0824f6435f838912e8074a8c678cf01d

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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