Four-phase root-cause investigation — Investigate → Analyze → Hypothesize → Verify → Implement. No fix lands without a confirmed root cause and a regression test that would have caught the original failure.
$npx -y skills add ethosagent/ethos --skill systematic-debuggingInstalls into the current project.
Run `npx skills use "https://github.com/ethosagent/ethos" --skill "ethosagent/ethos/systematic-debugging"` 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/ethosagent/ethos" that are relevant to the current task. Run `npx skills add "https://github.com/ethosagent/ethos"` and select the relevant skills, then follow their instructions.