F# for .NET

Trigger On

• the task touches .fs, .fsx, .fsi, or .fsproj files
• domain logic benefits from records, discriminated unions, options, results, or exhaustive pattern matching
• generated code needs a strongly typed functional model instead of nullable primitive state
• F# code must interoperate with C# or other .NET libraries
• the repository needs project setup, source ordering, or validation for F# code

Do Not Use For

• C# language feature selection; use modern-csharp
• analyzer-only, formatter-only, or CI-only work with no F# language decisions
• one-off REPL or scripting exploration that does not affect project code; use fsi
• non-.NET functional languages

Project Setup