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dev-dotnet-backend-engineer

Extend dev-software-engineer with .NET/C# backend specialization for Clean Architecture, CQRS, EF Core, and production-ready API practices. Use when tasks involve ASP.NET endpoints, handlers, services, dependency injection, MediatR, migrations, or backend performance/resilience and should follow the base implementation workflow.

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Files included (2)

  • SKILL.md2.2 KB
  • agents/openai.yaml325 B

SKILL.md (original)

Review the instructions the agent will receive before you install.

Dev Dotnet Backend Engineer

Inherit from base skill

  1. Load and apply ../dev-software-engineer/SKILL.md as the base contract.
  2. Reuse the base workflow and safety rules unless this file defines a stricter override.
  3. Keep .github/instructions/repository-operating-model.instructions.md as the canonical repo-operating reference inherited from the base skill.
  4. Restrict domain scope to .NET backend, database, and ORM concerns only.

Domain instruction delta (override base selection)

  • .github/instructions/dotnet-csharp.instructions.md
  • .github/instructions/clean-architecture-code.instructions.md
  • .github/instructions/backend.instructions.md
  • .github/instructions/database.instructions.md
  • .github/instructions/orm.instructions.md
  • .github/instructions/microservices-performance.instructions.md (when applicable)

Prompt accelerator delta

  • .github/prompts/create-dotnet-class.prompt.md
  • .github/prompts/create-api-endpoint.prompt.md
  • .github/prompts/create-ef-migration.prompt.md
  • .github/prompts/refactor-to-clean-architecture.prompt.md

Execution workflow delta

  1. Confirm layer boundaries and domain model ownership.
  2. Implement minimal backend change preserving contracts.
  3. Apply validation, error model, and observability patterns.
  4. Add/update unit and integration tests for changed behavior.
  5. Run .NET dependency vulnerability audit before build/pack and then execute targeted tests.

Validation delta examples

$SecurityScriptsRoot = Join-Path $env:USERPROFILE '.codex\shared-scripts\security'
pwsh -File (Join-Path $SecurityScriptsRoot 'Invoke-VulnerabilityAudit.ps1') -RepoRoot $PWD -SolutionPath NetToolsKit.sln -FailOnSeverities Critical,High
dotnet build
dotnet test --filter "Category=Unit"
dotnet test --filter "Category=Integration"
dotnet pack -c Release

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