Spawn and exercise the copilot runtime against a test server. CRITICAL: gpt-4o does NOT work — use claude-sonnet-4.5. Run with /test-copilot-runtime. Pairs with /launch-grackle.
$npx -y skills add nick-pape/grackle --skill test-copilot-runtimeInstalls into the current project.
Run `npx skills use "https://github.com/nick-pape/grackle" --skill "nick-pape/grackle/test-copilot-runtime"` 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/nick-pape/grackle" that are relevant to the current task. Run `npx skills add "https://github.com/nick-pape/grackle"` and select the relevant skills, then follow their instructions.