AI-Powered ERD Designer Skill for Seamless Database Design

AI-Powered ERD Designer Skill for Seamless Database Design

The AI-Powered ERD Designer Skill offers an efficient solution for creating and editing database Entity-Relationship Diagrams (.erd files). This skill empowers developers to design and modify database tables, columns, relations, indexes, and memos in a .erd file, export Data Definition Language (DDL) from .erd files, and validate .erd designs against previous revisions or live databases.

What this skill does

• Facilitates creation and editing of .erd files using a command-line interface (CLI).
• Enables the design of database tables, and modification of existing tables and relationships.
• Allows users to export database structure as DDL statements.
• Validates .erd files, checking for consistencies after changes.
• Compares .erd designs with live database schemas to ensure alignment.

Who it is for

This skill is ideal for developers and teams who utilize AI coding agents such as Claude Code, Cursor, or Codex to streamline their database design and management workflows.

Use cases

• A developer needs to visualize and modify complex database schemas efficiently.
• Teams require consistency checks between designed and deployed databases.
• Development environments that benefit from automated schema validation post-modification.

Technical details

• Operates directly from a CLI bundled with the skill, located at scripts/erd-agent.cjs.
• Does not require an MCP server, integrated development environments (IDE) like VSCode, or a running application.
• Requires Node.js 22+ for execution.
• Supports direct integration with agents that facilitate skills, including Claude Code and GitHub Copilot CLI.
• Includes commands for tool discovery, inspection, execution, and validation to maintain database design quality.

Source & Licence

This package is built on open-source work published by kajitiluna (kajitiluna/erd-designer) and distributed under Apache-2.0. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted under the Apache License 2.0, which also includes an express patent grant. Attribution and any NOTICE file must be retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

• Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
• Format: ZIP archive containing the skill files, documentation and the original licence.
• Support: support@mcpcart.com — we aim to reply within 2 business days.
• Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.