Diagnose hard bugs and performance regressions with a reproduce-minimise-hypothesise-instrument-fix-regression-test loop.
npx skills add https://github.com/shushuzn/Rairos --skill diagnose-shushuzn
Please help me install this Agent Skill. Skill: diagnose Source: https://github.com/shushuzn/Rairos/tree/main/skills/diagnose Command: npx skills add https://github.com/shushuzn/Rairos --skill diagnose-shushuzn
Helps you systematically diagnose hard bugs and performance regressions when ad-hoc guessing wastes time and fixes don’t stick.
Ask an agent to diagnose the issue by constructing a fast repro feedback loop, reproducing the failure, ranking falsifiable hypotheses, instrumenting to test them, and finishing with a regression test or an explicit note that no correct test seam exists.
High-intent search queries and answers about installing and using this skill.
To debug hard bugs systematically, enforce a reproduce-minimise-hypothesise-instrument-fix-regression-test loop, building a fast pass/fail signal so bisection and hypothesis-testing converge quickly.
Debug non-deterministic failures by increasing reproduction rate via stress or higher-trigger loops, then construct a reliable pass/fail signal to confirm the failure matches the user-reported symptom.
Rank falsifiable hypotheses during debugging by producing 3–5 testable guesses with explicit predictions before changing code, ensuring each guess targets boundaries that distinguish competing explanations.
Use targeted instrumentation to probe one variable at a time for performance regression, tagging debug logs to focus on boundaries that distinguish hypotheses and validate the fix with a regression test.
A disciplined debugging loop is not suitable when you cannot construct a reliable pass/fail signal or increase reproduction rate, as the loop requires repeatable failures to converge on a fix.
Create regression test coverage by turning the minimized reproduction into a failing test at the correct seam, or explicitly documenting when no correct test seam exists for the fix.
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