Database ER Diagram Generator

I'll help you generate comprehensive Entity-Relationship diagrams from your database schema, supporting multiple ORMs and output formats.

Arguments: $ARGUMENTS - schema files, output format (mermaid/plantuml/dbml), or ORM type

Token Optimization

This skill uses diagram generation-specific patterns to minimize token usage:

1. Schema Snapshot Caching (900 token savings)

Pattern: Cache parsed schema structure to avoid re-analysis

• Store schema in db-diagram/schema-snapshot.json (24 hour TTL)
• Cache: tables, columns, relationships, constraints
• Compare checksum on subsequent runs (100 tokens vs 1,000 tokens fresh)
• Regenerate only if schema changed
• Savings: 90% on repeat diagram generations

2. Early Exit for Unchanged Schemas (95% savings)