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F# language-specific patterns, Railway-Oriented Programming, and Computation Expressions
Passed 20 of 22 test cases with the skill, and 20 of 22 without it.
1 fixed19 passed either way1 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
A test case the skill fixed. Same model, same prompt, with and without the skill.
In an F# solution containing Domain, Infrastructure, and Application files, how should these modules be ordered relative to one another in the project file?
| Checked | Without skill | With skill |
|---|---|---|
| List Domain modules first, followed by Infrastructure adapters, and Application composition roots last. | Missed | Passed |
The instructions your model reads when the skill loads.
Cross-references: fp-principles | fp-domain-modeling | property-based-testing
dotnet new console -lang F# -o OrderService && cd OrderService
dotnet new xunit -lang F# -o OrderService.Tests
dotnet add OrderService.Tests reference OrderService
dotnet add OrderService.Tests package FsCheck.Xunit
dotnet test
File order matters: F# compiles files top-to-bottom as listed in .fsproj. Types must be defined before use.
type PaymentMethod =
| CreditCard of cardNumber: string * expiryDate: string
| BankTransfer of accountNumber: string
| Cash
type Customer = {
CustomerId: CustomerId
CustomerName: CustomerName
CustomerEmail: EmailAddress
}
test cases passed, vs 20 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.