This skill should be used when the user says "diagnose this", "debug this", "why is this failing", "this is broken", "track down this bug", or reports something throwing, crashing, returning wrong output, or a performance regression. A disciplined diagnosis loop for hard bugs: build a feedback loop, reproduce, hypothesise, instrument, fix, regression-test. The feedback loop is the skill; everything else is mechanical.
$npx -y skills add denisraison/claude-plugins --skill diagnoseInstalls into the current project.
Run `npx skills use "https://github.com/denisraison/claude-plugins" --skill "denisraison/claude-plugins/diagnose"` 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/denisraison/claude-plugins" that are relevant to the current task. Run `npx skills add "https://github.com/denisraison/claude-plugins"` and select the relevant skills, then follow their instructions.