Add or refactor a specx core scope use case. Use when implementing an externally meaningful application action under a core scope use_cases package, adding same-file command/query inputs, result DTOs, coordinating services, opening a unit-of-work transaction, or moving behavior out of delivery or infrastructure into class-based application code.
$npx -y skills add maksimzayats/specx --skill specx-add-core-use-caseInstalls into the current project.
Run `npx skills use "https://github.com/maksimzayats/specx" --skill "maksimzayats/specx/specx-add-core-use-case"` 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/maksimzayats/specx" that are relevant to the current task. Run `npx skills add "https://github.com/maksimzayats/specx"` and select the relevant skills, then follow their instructions.