dbdesign SKILL.md skillA
dbdesign from vanducng/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vanducng/skills/dbdesign@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vanducng/skills
- Path
skills/dbdesign/SKILL.md- Versions recorded
- 4
- Latest version
- v1.0.0, committed Jul 24, 2026
- First version recorded
- Jun 11, 2026
- Size
- 4,905 bytes
- Repository stars
- 8
- License
- MIT
Design and review production database schemas, data models, ERDs, migration plans, and storage patterns. Use for OLTP schema design, OLAP/star-schema modeling, fact/dimension tables, indexes, constraints, partitioning, multi-tenant data models, CSV/JSON-to-table design, schema review, migration risk review, and database design documents across PostgreSQL, MySQL, SQLite/D1, BigQuery, and MongoDB. Does not execute DDL by default.
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
# DB Design Design database schemas from requirements, existing data, and query patterns. This skill covers modeling decisions and review quality; use `vd:miudb` or the `sqlit` CLI to inspect live databases, `vd:diagram` for ERDs, and `vd:cnpg` for CloudNativePG provisioning. ## Reference Router Read only what the task needs: - `references/workflow.md`: intake, schema inspection, output format, and approval gates. - `references/transactional.md`: OLTP entities, relationships, constraints, indexes, soft delete, tenancy, and audit columns. - `references/analytics.md`: OLAP/star schema, facts, dimensions, SCD, summaries, and incremental refresh design. - `references/engine-notes.md`: PostgreSQL, MySQL/MariaDB, SQLite/D1, BigQuery, and MongoDB-specific design notes. - `references/migration-review.md`: migration safety, rollout sequencing, backfills, rollback, partitioning, and risk checks. - `references/design-doc.md`: compact database design document template. ## Workflow 1. Identify the database engine and context: new schema, extension of existing schema, analytics model, data import, migration review, or design doc. …
Read the whole file at its exact version.
How to install
mdr add vanducng/skills/dbdesign@sha256:c54f48dd1e2b673cThe 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.
[](https://markdownregistry.com/a/art_qtead7wtfmck2arn)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jun 11, 2026 and Jul 24, 2026, about one every 14 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-07-24 | 51405ee | 4,905 B | A | view · diff |
| v1.0.0 | 2026-07-10 | 6f1e7cf | 4,909 B | A | view · diff |
| v1.0.0 | 2026-06-19 | 464c98f | 4,899 B | A | view · diff |
| v1.0.0 | 2026-06-11 | 7be3fb0 | 4,175 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 (4905 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
vanducng/skills · 8 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qtead7wtfmck2arn GET https://markdownregistry.com/api/v1/resolve?ref=vanducng/skills/dbdesign GET https://markdownregistry.com/api/v1/blob/c54f48dd1e2b673c43ce3e3df27865dcdc2868aa20a5b44e1afd27c8d325b723
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.