csharp · diff

git:20260915.f17c505 to git:20261010.87e53aa

2 added, 1 removed. Audit A to A.

---

description: C# / .NET coding standards (Frontier)

globs: **/*.cs,**/*.csx

alwaysApply: false

---

# C# / .NET (Frontier)

Canonical: `.github/instructions/csharp.instructions.md` and

- `.github/skills/languages/csharp/SKILL.md` -- read for full standards.

+ `.github/skills/languages/csharp/SKILL.md` -- read through

+ `pwsh -NoProfile -File .frontier/runtime/frontier.ps1 cursor read <canonical-path>`.

- Nullable reference types enabled; async/await end to end (no `.Result`).

- Dependency injection; EF Core with parameterized queries only.

- XML docs on public APIs; xUnit tests; catch specific exceptions.

- Secrets via configuration/Key Vault, never hardcoded.