Use when creating or editing a use case under src/application/v1/usecases/. Enforces the RequestBus + UseCase pattern (Request + UseCase in one file, @dataclass(slots=True), returns Result type) and the DBGateway transaction rules — never open two sessions in one use case, never touch self.database outside a context manager, never lazy-load relationships outside the session.
$npx -y skills add ocbunknown/fastapi-claude-template --skill usecaseInstalls into the current project.
Run `npx skills use "https://github.com/ocbunknown/fastapi-claude-template" --skill "ocbunknown/fastapi-claude-template/usecase"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/ocbunknown/fastapi-claude-template" that are relevant to the current task. Run `npx skills add "https://github.com/ocbunknown/fastapi-claude-template"` and select the relevant skills, then follow their instructions.