When you're staring at ECONNRESET or HTTP/2 INTERNAL_ERROR and your first instinct is to blame the load balancer, this skill forces you to prove it with evidence first. It's built from a real 5-hour production incident where assumption-stacking wasted time that a 10-minute layered experiment would have solved. The core move is falsification over confirmation: design experiments that test one hop at a time, add instrumentation to close evidence gaps, and run counter-review before committing to a root cause. Best for connection resets, SSE stalls, or those "fails after exactly N seconds" bugs where the obvious answer is usually wrong. Includes triage tables for when to hand off to domain-specific skills like tunnel-doctor or cloudflare-troubleshooting.
npx skills add https://github.com/daymade/claude-code-skills --skill debugging-network-issues