scaffolding
Implementation details for EF Core scaffolding (reverse engineering). Use when changing ef dbcontext scaffold pipeline implementation, database schema reading, CSharpModelGenerator, or related classes.
- Installs
- 47
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/dotnet/efcore --skill scaffolding- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads scaffolding automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Scaffolding
Generates C# code from database schemas (reverse engineering).
When Not to Use
- Working on compiled model generation (
dotnet ef dbcontext optimize)
Reverse Engineering
Pipeline: IDatabaseModelFactory (reads schema) → IScaffoldingModelFactory (builds EF model) → IModelCodeGenerator (generates C#)
IReverseEngineerScaffolder— orchestrates full pipeline
Schema Query Compatibility
Provider schema readers often query one-to-many metadata tables. Preserve anti-semi semantics when adapting SQL for a limited engine: a LEFT JOIN containing the complete excluded-property predicate in ON, followed by a null filter on a non-nullable joined key, is equivalent to NOT EXISTS. Unrelated metadata rows do not join; any matching excluded row makes the joined key non-null and excludes the object. Do not move parts of the excluded-property predicate to WHERE or join all metadata rows and filter individual rows afterward. An equivalent non-correlated anti-set form, such as NOT IN (SELECT key ... WHERE excluded-condition), also works when the subquery cannot return null keys. Cover objects with no metadata, unrelated metadata only, the excluded property only, and both excluded and unrelated properties.
FAQ
What does the scaffolding skill do?
Implementation details for EF Core scaffolding (reverse engineering). Use when changing ef dbcontext scaffold pipeline implementation, database schema reading, CSharpModelGenerator, or related classes.
How do I install scaffolding?
Run npx skills add https://github.com/dotnet/efcore --skill scaffolding in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/scaffolding/ (personal) or .claude/skills/scaffolding/ (project).
Which AI agents can use scaffolding?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is scaffolding safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains scaffolding?
It is published by dotnet in dotnet/efcore. It has 47 recorded installs.
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