skills.rest
tis-abe-akira
tis-abe-akiraCOMMUNITY
Explore all skills by this author →
GitHub

data-modeler

Convert business use-cases into structured RDBMS designs with Mermaid ER diagrams.

Updated Aug 27, 2026
Search Tags:#mermaid#data-modeling#database-design#er-diagram#immutable-data-model#blackboard-pattern#ddl-generation
One-click install
npx skills add https://github.com/tis-abe-akira/cc-data-modeler --skill data-modeler-tis-abe-akira
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: data-modeler
Source: https://github.com/tis-abe-akira/cc-data-modeler/tree/main/.claude/skills/data-modeler-skill
Command: npx skills add https://github.com/tis-abe-akira/cc-data-modeler --skill data-modeler-tis-abe-akira

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Data-modeling from business use-cases is time-consuming and error-prone. This Skill automates the end-to-end process by converting requirements into a structured data model and diagrams, following immutable data modeling principles.

Core Features & Use Cases

  • Blackboard-pattern driven orchestration: multiple Knowledge Sources collaborate to gradually build the model from entities to ER diagram.
  • Immutable data model principles: differentiate Resources (stable, persistent) from Events (fact-at-a-point).
  • End-to-end workflow: entity extraction -> classification -> relationship analysis -> ER diagram generation, with artifacts such as state.yaml, model.json, and er_diagram.mmd.
  • Mermaid ER diagrams for quick visualization and integration with docs.
  • Extensible through optional assets (scripts, references, assets) for on-demand tasks.

Quick Start

Claude Code を使ってユースケースを入力すると、この Skill がデータモデルと ER図を自動生成します。下記は開始例です。

  • ユースケースを入力して実行してください。

Frequently Asked Questions about data-modeler

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate an ER diagram from business use-cases?▼

You can automate data-modeling from business use-cases by converting requirements into a structured RDBMS design that outputs a Mermaid ER diagram, state.yaml, and model.json artifacts.

What is immutable data modeling and when do I need it for database design?▼

Immutable data modeling differentiates stable persistent Resources from point-in-time Events for database design. You need it when structuring reliable RDBMS schemas from complex business requirements.

Can I use Mermaid ER diagrams to visualize database design?▼

Yes, you can use Mermaid ER diagrams to visualize database design. This Skill generates Mermaid-formatted ER diagrams for quick integration with documentation.

Does this data-modeling tool support DDL generation?▼

Yes, this data-modeling tool supports DDL generation. It converts business requirements into a structured RDBMS design with optional scripts for on-demand DDL generation tasks.

What is the best way to extract entities from business requirements?▼

The best way to extract entities from business requirements is using a Blackboard-pattern orchestration where multiple Knowledge Sources collaborate to gradually build the data model from entities to ER diagram.

What are the limitations of automated data-modeling from use-cases?▼

Automated data-modeling from use-cases requires clear business requirements to function properly. It focuses on RDBMS design and Mermaid ER diagrams, so it may not suit NoSQL or unstructured data modeling workflows.

Related Skills

Explore More Software Engineering Skills→
apolosanapolosan
3

up-requirements

Capture system requirements into a structured Use Case catalog for UP projects.

Community
Advanced
Eigo-Mt-FujiEigo-Mt-Fuji

database-schema-designer

Design database schemas, ER diagrams, and DDL for relational and NoSQL databases.

Community
Advanced
dhar174dhar174
1

mermaid-diagrams

Generate flowcharts, sequence, class, ER, and Gantt diagrams from Mermaid syntax.

Community
Intermediate
v1bh0rv1bh0r

nw-database-technology-selection

Select database technology by evaluating RDBMS versus NoSQL trade-offs.

Community
Advanced