Scaffold a new backend provider following project patterns (service + provider + tests)
$npx -y skills add j4th/mtg-mcp-server --skill new-providerInstalls into the current project.
Run `npx skills use "https://github.com/j4th/mtg-mcp-server" --skill "j4th/mtg-mcp-server/new-provider"` 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/j4th/mtg-mcp-server" that are relevant to the current task. Run `npx skills add "https://github.com/j4th/mtg-mcp-server"` and select the relevant skills, then follow their instructions.