data-contract-extractor SKILL.md skillA
data-contract-extractor from testland/qa is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add testland/qa/data-contract-extractor@git:20260813.83125c6Pins git:20260813.83125c6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- testland/qa
- Path
plugins/qa-data-quality/skills/data-contract-extractor/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260813.83125c6, committed Aug 13, 2026
- Size
- 9,704 bytes
- Repository stars
- 11
- License
- MIT
Reads a data-product spec (data PRD, dataset README, lineage doc) and emits a structured data contract - schema (columns + types + nullability + PII flags), freshness SLA, volume bounds, distribution invariants, and ownership. The contract is consumable by data-quality tools such as dbt tests, Great Expectations, or Soda checks as their assertion baseline. Use when scoping a new data product or formalizing assertions on an existing one.
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
# data-contract-extractor ## Overview This skill formalizes the prose of a data PRD into a **data contract** - the producer/consumer agreement on schema, freshness, volume, semantic invariants, and ownership - that the QA test suite can mechanically assert against, typically via the sibling skills in this plugin (`dbt-testing`, `great-expectations`, `soda-checks`). "Data contract" is practitioner-emergent terminology (Andrew Jones / Chad Sanderson), not ISTQB-canonical; this skill cites industry-engineering sources. ## When to use - A new data product (dbt model, table, file feed) is being scoped and the team wants assertions before shipping. - An existing data product has implicit assumptions consumers rely on; the team is documenting them ahead of a refactor. - A PRD or design doc references a dataset and the team needs the schema / SLA pulled out into structured form. - A data-quality engineer needs the contract as input to suite generation. ## What goes in a data contract The five required sections, in order of authoring priority: ### 1. Schema For each column: | Field | Required | Notes | |---------------|----------|-------| …
Read the whole file at its exact version.
How to install
mdr add testland/qa/data-contract-extractor@sha256:c0e97a0ac5cfc0d4The line at the top of this page pins the label git:20260813.83125c6, 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.
[](https://markdownregistry.com/a/art_4qxnlje2guk23xlv)
0 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 13, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (9704 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
testland/qa · 11 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4qxnlje2guk23xlv GET https://markdownregistry.com/api/v1/resolve?ref=testland/qa/data-contract-extractor GET https://markdownregistry.com/api/v1/blob/c0e97a0ac5cfc0d4897bb10a508f4ba7329d4b2f272da2a6ed84090b0d908ee3
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.