database-schema-designer SKILL.md skillA
database-schema-designer from jpeetz/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jpeetz/agent-skills/database-schema-designer@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
- jpeetz/agent-skills
- Path
skills/data/database-schema-designer/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Aug 31, 2026
- Size
- 10,213 bytes
- Repository stars
- 14
- License
- none declared
Design production-ready database schemas for SQL and NoSQL databases. Covers normalization, indexing strategy, migration management with rollback safety, query optimization, and multi-tenant patterns. Supports PostgreSQL, MySQL, SQLite, MongoDB, and Vitess.
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 Schema Designer Design production-ready database schemas with built-in best practices. Covering SQL normalization, indexing strategy, migration management with safe rollback patterns, query optimization, and multi-tenant architecture patterns across PostgreSQL, MySQL, SQLite, MongoDB, and Vitess. ## When to Use This Skill Use this skill when: - Designing a new database schema from scratch - Reviewing an existing schema for performance or correctness - Planning a database migration with safe rollback - Optimizing slow queries on a production database - Converting between database engines (MySQL → PostgreSQL, etc.) - Designing multi-tenant data architectures - Any request like "design a schema for X", "review my database", "optimize this query", "create migrations", "normalize this table" ## Safety Rules (Risk Tier L2) Database operations can be destructive. This skill enforces: 1. **Never DROP without backup** — Always generate backup commands first 2. **Always generate rollback** — Every migration includes verified reversal 3. **Test migrations on staging** — Never run directly on production 4. **Lock-aware design** — Schema changes must consider lock duration …
Read the whole file at its exact version.
How to install
mdr add jpeetz/agent-skills/database-schema-designer@sha256:f1edefdba3c0fd60The 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_5o3tj6u5vj5ugffi)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 31, 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 (10213 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
jpeetz/agent-skills · 14 stars · license none declared · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5o3tj6u5vj5ugffi GET https://markdownregistry.com/api/v1/resolve?ref=jpeetz/agent-skills/database-schema-designer GET https://markdownregistry.com/api/v1/blob/f1edefdba3c0fd6081c509bd5c55ca42ad90cd44ab1e609f39c0de7ac6be4b58
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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