Individual skill
efcore-d2-db-diagram
Generate D2 database diagrams from Entity Framework Core models. USE FOR: EF Core database diagram, Entity Framework Core ERD, DbContext diagram, C# entity relationship diagram, PostgreSQL schema visualization, generate .d2 file from EF Core entities, Fluent API mapping diagram, migrations-based database diagram, table relationships, owned types, many-to-many join tables, indexes and constraints. DO NOT USE FOR: runtime debugging, database migration execution, schema deployment, SQL performance tuning, or draw.io diagrams.
skills/efcore-d2-db-diagram/SKILL.md
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- Last checked
- Nov 4, 2026
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- Repository last updated
- Nov 6, 2026
- License
- MIT
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SKILL.mdcore · 9,145 bytesSKILL.mdcore · 9,145 bytesSKILL.mdcore · 9,145 bytesSKILL.mdcore · 9,145 bytesSKILL.mdcore · 9,145 bytesSKILL.mdcore · 9,145 bytesreferences/d2-erd-style.mddoc · 490 bytesreferences/efcore-model-extraction.mddoc · 927 bytesreferences/grouping-modes.mddoc · 401 bytesreferences/quality-gate.mddoc · 516 bytesreferences/relationship-rules.mddoc · 1,010 bytes
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# EF Core D2 Database Diagram Generator
## When to Use
Use this skill when the user wants to generate a database / ERD diagram from an Entity Framework Core codebase.
Typical requests:
- Generate a D2 database diagram from EF Core entities.
- Visualize tables, columns, primary keys, foreign keys and relationships.
- Analyze `DbContext`, `DbSet<T>`, `IEntityTypeConfiguration<T>`, Fluent API and migrations.
- Produce a `.d2` file renderable to SVG/PNG with the `d2` CLI.
- Document the database model of an ASP.NET Core / .NET project.
