When you're stuck on a gnarly problem and need to think systematically, this walks you through proper Fishbone analysis across six categories: People, Process, Technology, Environment, Methods, and Materials. It's structured root cause analysis, not just venting about symptoms. The examples are solid, covering everything from API latency to flaky tests to blown estimates. What makes this actually useful is that it forces you to dig past the obvious technical causes into process and method failures, which is usually where the real problems live. Best used when you need to explain why something went wrong to stakeholders or when you're genuinely stumped and throwing more code at it isn't working.
npx skills add https://github.com/neolabhq/context-engineering-kit --skill cause-and-effect