software-database-design SKILL.md skillA
software-database-design from vasilyu1983/ai-agents-public is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vasilyu1983/ai-agents-public/software-database-design@v1.3Pins v1.3 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vasilyu1983/ai-agents-public
- Path
skills/universal/software-database-design/SKILL.md- Versions recorded
- 1
- Latest version
- v1.3, committed Oct 5, 2026
- Size
- 17,363 bytes
- Repository stars
- 101
- License
- MIT
Designs database schemas, migrations, and data models for PostgreSQL, MySQL, MongoDB, and Redis. Use when planning tables, relationships, indexes, or ORM-backed schema changes.
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
# Database Design Schema design, data modeling, migration safety, and ORM patterns. This skill covers structural decisions — what tables exist, how they relate, how schemas evolve. For tuning queries on an existing schema, use `data-sql-optimization`. ## Quick Reference | Task | Default Picks | Notes | |------|---------------|-------| | Relational database | PostgreSQL (a supported stable major) | Transactions, complex queries, JSON support; verify the supported major at https://www.postgresql.org/support/versioning/ | | Relational (MySQL family) | A supported MySQL LTS series | Use an LTS series for production, not an Innovation release; Innovation releases use calendar versioning, so the version number alone does not tell you the track. Check which series are LTS and their support end dates at https://dev.mysql.com/doc/mysql-lts-innovation-release-model/en/ before naming a version | | Embedded / edge relational | SQLite | Release train moves fast (monthly point releases); pin a version, don't chase latest blindly | | Flexible schema | MongoDB (a supported major) | Rapid iteration, embedded relationships; verify the major at https://www.mongodb.com/docs/manual/release-notes/ | …
Read the whole file at its exact version.
How to install
mdr add vasilyu1983/ai-agents-public/software-database-design@sha256:f233b41f1e7f79abThe line at the top of this page pins the label v1.3, 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_sl4u3ohwrw7i3eib)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 5, 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 (17363 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
vasilyu1983/ai-agents-public · 101 stars · license MIT · pushed 2026-10-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_sl4u3ohwrw7i3eib GET https://markdownregistry.com/api/v1/resolve?ref=vasilyu1983/ai-agents-public/software-database-design GET https://markdownregistry.com/api/v1/blob/f233b41f1e7f79ab8ecfc8c212ee25a96148d80b9edf3a5eba8683e69fbcbc81
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.