pkuppens/design-data-model
skills/design/design-data-model/SKILL.md
Describes entities, relationships, and lifecycle rules for persistence and APIs. Use when adding tables, migrations, or shared DTOs that must stay consistent.
development
Updated Apr 17, 2026
$ install --global
skillsauthnpx skillsauth add pkuppens/pkuppens design-data-modelInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 17, 2026, 7:57 AM8.8s1 file scanned
SKILL.md
- name:
- design-data-model
- description:
- Describes entities, relationships, and lifecycle rules for persistence and APIs. Use when adding tables, migrations, or shared DTOs that must stay consistent.
Design data model
Complements interfaces with state shape.
When to use
- New tables or collections
- Entity relationships (1:N, M:N) affect API and queries
- Soft delete, audit columns, or multi-tenancy keys
Instructions
- Entities — name, purpose, primary key.
- Relationships — cardinality; foreign keys or references.
- Invariants — uniqueness, cascades, not-null rules.
- Migration stance — expand/contract; backward compatibility window.
- Link to design-interfaces for exposed fields.
Output format
- ER description or bullet model; optional Mermaid
erDiagramif the repo uses it
Anti-patterns
- Data model without ownership (who writes which entity?)
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