What problem does it solve?
This Skill helps you systematically diagnose hard bugs and performance regressions by turning vague failures into a repeatable feedback loop with crisp verification.
Core Features & Use Cases
- Build a deterministic debugging signal: prioritize failing tests, scripts, CLI fixtures, or trace replay so fixes are provably correct.
- Run a disciplined phased workflow: reproduce, confirm the exact symptom, generate falsifiable hypotheses, instrument with targeted probes, then fix and lock in with regression tests.
- Improve debuggability when the bug is flaky: raise reproduction rates and use structured loops rather than guesswork.
- Safety gate when diagnosis isn’t possible: explicitly stop when no loop can be built and request concrete artifacts or access needed to proceed.
Quick Start
Ask to diagnose a specific failing scenario and provide a repro signal (error message, failing command, captured trace/logs, or a test case) so the Skill can drive the reproduce → hypothesize → instrument → fix → regression-test process.