SKILL

okhp3-mermaid-data

Data model and relationship diagrams in Mermaid - entity-relationship (ER) diagrams, class diagrams, schema documentation. Use when the user wants to diagram a database schema, data model, object structure, class hierarchy, or entity relationships with cardinality. Always load okhp3-mermaid-core first for audience/type/theming.

Target: Databases. Automatically collected · unverified.

Excerpt from the author’s documentation

Extracted from a fixed version of SKILL.md in its original language. This is the author’s documentation; installation, compatibility and runtime results have not been verified by this site.

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Topics in the source

  • okhp3-mermaid-data
  • ER Diagrams
  • Class Diagrams
  • Schema Documentation Patterns
  • Execution contract
  • Cardinality Conventions
  • Scope
  • Validation

OverKill Hill P³ · overkillhill.com · github.com/OKHP3 Data modeling vocabulary, loaded after okhp3-mermaid-core. Entity-relationship modeling with cardinality notation. See references/erd-syntax.md for entity/attribute syntax and cardinality conventions (one-to-one, one-to-many, many-to-many - exact notation and when PK/FK annotations are included vs. omitted for Executive/Analyst audiences). Object structure, relationships, methods. See references/class-diagram-syntax.md. Distinguish an existing schema from a proposed model. Preserve source names and stated cardinality. Label inferred keys, constraints, and attributes as assumptions. Validate relationship direction, optionality, and duplication before delivery. Never invent columns or identifiers to fill missing source information. When a diagram is documenting an existing schema (vs. designing a new one), see references/schema-documentation-patterns.md for how much of the real schema to surface at each audience tier - Technical gets full field lists and types, Analyst gets entity names and relationships only, Executive rarely needs this diagram type at all (flag if an Executive-tier ER diagram is requested; it may be the wrong t

This is an excerpt. Refer to the complete source and its current requirements.

Source repository
OKHP3/skillz
Source file
mermaid/okhp3-mermaid-data/SKILL.md
Fixed revision
7b187777d42ab7bc7bab1e5f2c940cd3139ecebf
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Author: OKHP3/skillz · original repository metadata. Documentation review: Not reviewed. Last source check: 2026-11-10T10:00:55.118Z.

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MIT. Third-party content and copyright remain with their authors. Refer to the original license and terms.

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