diagnose - Disciplined diagnosis loop for hard bugs.
A structured process to reproduce, hypothesise, instrument, fix, and regression-test hard bugs and performance regressions.
Tags
Updated: 2026-09-18Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Build a fast feedback loop
- Reproduce the bug failure mode
- Generate ranked falsifiable hypotheses
- Instrument targeted probes and logs
- Apply fix with regression tests
- Clean up debug instrumentation
Inputs
- User bug report or error message
- Project codebase and test suite
- Domain glossary and ADRs
- Reproduction logs or trace artifacts
Outputs
- Failing and passing regression tests
- Codebase bug fix
- Ranked hypothesis check result
- Post-mortem architecture recommendations
