What problem does it solve?
This Skill eliminates unproductive, guesswork-driven debugging of complex, hard-to-reproduce software bugs and performance regressions that waste developer time and often lead to incomplete or incorrect fixes.
Core Features & Use Cases
- Structured 6-phase workflow: Guides users through building a feedback loop, reproducing the bug, generating falsifiable hypotheses, instrumenting code, implementing fixes with regression tests, and performing post-mortem cleanup for consistent, repeatable debugging.
- Reproduction loop guidance: Provides 10 ranked strategies to build fast, deterministic, agent-runnable pass/fail signals for even the most elusive non-deterministic bugs.
- Use case: When a critical production API timeout regression appears with no clear root cause, this Skill guides you to build a repro harness, generate testable hypotheses, and implement a fix with a regression test to prevent recurrence.
Quick Start
Use the diagnose skill to apply the disciplined 6-phase workflow to debug the reported intermittent checkout failure that only occurs during peak traffic.