Repository-specific testing guide. Use for any test work: planning coverage, writing/fixing/reviewing Vitest tests, test helpers/fakes, failure triage, choosing test layers, and Lit UI tests, including TemplateResult handler extraction rules.
$npx -y skills add jmfederico/pi-web --skill testing-guideInstalls into the current project.
Run `npx skills use "https://github.com/jmfederico/pi-web" --skill "jmfederico/pi-web/testing-guide"` 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/jmfederico/pi-web" that are relevant to the current task. Run `npx skills add "https://github.com/jmfederico/pi-web"` and select the relevant skills, then follow their instructions.