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Dan Moseley 042a9d2b2c Reorganize plugins into domain-specific groupings (#274)
* Reorganize plugins per agreed structure (#271)

Split the dotnet plugin into domain-specific plugins per discussion
in #271:

- dotnet: narrowed to common everyday C#/.NET coding tasks
- dotnet-diag: perf investigations, debugging, incident analysis
- dotnet-data: data access and Entity Framework
- dotnet-aspnet, dotnet-wpf, dotnet-winforms, dotnet-maui: scaffolded
  empty to convey intent for future framework-specific skills

Moved skills, tests, and CODEOWNERS entries accordingly.
No file content was changed; all skill/test moves are pure renames.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Improve dotnet-diag and dotnet-winforms descriptions

- dotnet-diag: add '.NET' qualifier to clarify scope
- dotnet-winforms: use official 'Windows Forms (WinForms)' name

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add .NET qualifier to dotnet-data description

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Remove empty plugins; list them in CONTRIBUTING.md as future options

Remove the four empty placeholder plugins (dotnet-aspnet, dotnet-wpf,
dotnet-winforms, dotnet-maui) that had only plugin.json and no skills.

Add a 'Plugin organization' section to CONTRIBUTING.md that describes the
domain-specific plugin groupings introduced in this PR and lists the four
removed plugin names as reserved candidates for future contributions.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Create dotnet-upgrade plugin with migration/upgrade skills

Move migrate-nullable-references, thread-abort-migration, and
dotnet-aot-compat from dotnet to the new dotnet-upgrade plugin.

Update CODEOWNERS paths (same owners), CONTRIBUTING.md plugin table,
and fix the thread-abort-migration SKILL.md link in CONTRIBUTING.md.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-03-06 21:01:52 -08:00

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YAML

scenarios:
- name: "Optimize bulk operations with EF Core 7+ ExecuteUpdate and ExecuteDelete"
prompt: |
I have an EF Core 8 app. These two operations are extremely slow because they load all entities into memory:
```csharp
// Operation 1: Deactivate all products not sold in 6 months
var staleProducts = await _db.Products
.Where(p => p.LastSoldDate < DateTime.UtcNow.AddMonths(-6))
.ToListAsync();
foreach (var p in staleProducts)
{
p.IsActive = false;
}
await _db.SaveChangesAsync();
// Operation 2: Delete all audit logs older than 1 year
var oldLogs = await _db.AuditLogs
.Where(l => l.CreatedAt < DateTime.UtcNow.AddYears(-1))
.ToListAsync();
_db.AuditLogs.RemoveRange(oldLogs);
await _db.SaveChangesAsync();
```
There are 500K products and 2M audit logs. How do I make these efficient?
assertions:
- type: "output_matches"
pattern: "(ExecuteUpdateAsync|ExecuteUpdate)"
- type: "output_matches"
pattern: "(ExecuteDeleteAsync|ExecuteDelete)"
- type: "output_matches"
pattern: "(SetProperty|set.*property)"
rubric:
- "Recommended ExecuteUpdateAsync for the bulk update instead of loading entities (EF Core 7+ feature)"
- "Used the correct SetProperty lambda syntax: SetProperty(p => p.IsActive, false)"
- "Recommended ExecuteDeleteAsync for the bulk delete instead of loading and RemoveRange"
- "Explained that ExecuteUpdate/ExecuteDelete bypass change tracking and execute as single SQL statements"
- "Warned about limitations: no cascade deletes triggered, no change tracker notification, bypasses interceptors/events"
- "Showed the correct LINQ-to-SQL translation (WHERE + UPDATE/DELETE without SELECT)"
expect_tools: ["bash"]
timeout: 120