profile SKILL.md skillA

profile from datawithbaraa/claude-code-data-engineering-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add datawithbaraa/claude-code-data-engineering-skills/profile@git:20261029.2e2b6c2

Pins git:20261029.2e2b6c2 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
datawithbaraa/claude-code-data-engineering-skills
Path
skills/profile/SKILL.md
Versions recorded
1
Latest version
git:20261029.2e2b6c2, committed Oct 29, 2026
Size
2,197 bytes
Repository stars
81
License
MIT

Use when a new source or new files arrive, to profile them before any data contract or pipeline code is written, the file formats, the schema, the data quality, the bad records, the relationships, the gaps and the personal data.

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

# Profile

The job: understand new data before anything is built on it. It writes nothing but the report.

Input: the folder of the new source, a feed file, or a table.

## Steps

1. Run a profiler on what arrived, with scripts that count. Never guess a number.
2. File format: delimiter, quoting, encoding, null tokens, decimal separators, date and timestamp formats.
3. Schema: tables, columns, data types, row counts, and the schema drift between the files.
4. Data quality: null values, empty columns, constant columns, duplicate rows, and the uniqueness of the primary key.
5. Bad records: corrupt records, outliers, values out of range, and placeholder values such as 9999-12-31.
6. Relationships: for every foreign key, the orphans, the child rows whose parent is not in the delivery.
7. Gaps and deletes: business days without rows, tables that never change, and how the source marks a deleted row.
8. Personal data: the columns that hold personal or bank data, with their values masked on the page.
9. Compare with the metadata, if there is one: columns the metadata does not know, and columns that did not arrive.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add datawithbaraa/claude-code-data-engineering-skills/profile@sha256:c73a8e1709d2acb9

The line at the top of this page pins the label git:20261029.2e2b6c2, 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_36gbfiea5x5ve4br.svg)](https://markdownregistry.com/a/art_36gbfiea5x5ve4br)

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

Versions

The registry has recorded 1 version of this file, committed on Oct 29, 2026.

versioncommittedcommitsizeaudit
git:20261029.2e2b6c2 latest2026-10-29 2e2b6c2 2,197 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 (2197 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

datawithbaraa/claude-code-data-engineering-skills · 81 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_36gbfiea5x5ve4br
GET https://markdownregistry.com/api/v1/resolve?ref=datawithbaraa/claude-code-data-engineering-skills/profile
GET https://markdownregistry.com/api/v1/blob/c73a8e1709d2acb9373a5595968326b8b728dadfafc7fff2f10537f2a174c65e

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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Every file in datawithbaraa/claude-code-data-engineering-skills

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