data-quality-conventions SKILL.md skillA
data-quality-conventions 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-quality-conventions@git:20260724.d4db756Pins git:20260724.d4db756 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-quality-conventions/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260724.d4db756, committed Jul 24, 2026
- First version recorded
- Jun 3, 2026
- Size
- 7,887 bytes
- Repository stars
- 11
- License
- MIT
Reference catalog of data-quality conventions - when to choose dbt-tests vs Great Expectations vs Soda, column-level vs table-level coverage, severity tiering, SLA and freshness conventions, and common anti-patterns to avoid. Use when designing coverage for a new data product or auditing 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-quality-conventions A reference catalog for **how** to design data-quality coverage. Pairs with the engine-specific skills (`dbt-testing`, `great-expectations`, `soda-checks`) - those tell you the **how** of running checks; this tells you **which** checks and **where**. ## Engine selection Use this matrix to pick an engine before authoring any checks. Mixing engines is fine in a large platform - the `data-quality-gate` skill exists precisely to reconcile their outputs. | Use case | Preferred engine | Why | |-------------------------------------------------------|------------------|-----| | Repo is a dbt project; assertions live next to models | dbt-tests | Tests run as part of `dbt build`, share the project's adapter, and live in the same `schema.yml` as the column docs. | | Python ELT, programmatic suite generation, runtime data connectors | Great Expectations | First-class Pandas / SQL / Spark batches; suites composable in Python. | | YAML-only checks against a SQL warehouse, cross-team observability via Soda Cloud | Soda | SodaCL is a focused DSL; no Python or dbt required. | …
Read the whole file at its exact version.
How to install
mdr add testland/qa/data-quality-conventions@sha256:8c60907a27f438a1The line at the top of this page pins the label git:20260724.d4db756, 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_6ffs2ynysxx5w2gn)
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Versions
The registry has recorded 5 versions of this file, between Jun 3, 2026 and Jul 24, 2026, about one every 13 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260724.d4db756 latest | 2026-07-24 | d4db756 | 7,887 B | A | view · diff |
| git:20260719.53f73b7 | 2026-07-19 | 53f73b7 | 8,041 B | A | view · diff |
| git:20260718.ab29907 | 2026-07-18 | ab29907 | 8,056 B | A | view · diff |
| git:20260706.4e1409c | 2026-07-06 | 4e1409c | 8,098 B | A | view · diff |
| git:20260603.21eda0e | 2026-06-03 | 21eda0e | 8,115 B | A | view |
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 (7887 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_6ffs2ynysxx5w2gn GET https://markdownregistry.com/api/v1/resolve?ref=testland/qa/data-quality-conventions GET https://markdownregistry.com/api/v1/blob/8c60907a27f438a1cbf964e88708e6b0b6ae7ea3889fc38b6f958dcf939580c4
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.