troubleshooting-rca

Included with Lifetime

$97 forever

Perform root-cause analysis for bugs/errors/regressions using logs, repro steps, and hypothesis testing. Use when the user reports “nie działa”, stack traces, failing tests, or regressions.

General

What this skill does


# troubleshooting-rca

## Activation gate (anti-noise)
Activate when:
- There is an error message, failing test, crash, regression, unexpected behavior, or logs.

Skip when:
- User requests implementation from scratch and no failure exists yet.

## Procedure
1. Restate symptom + expected behavior.
2. Collect minimal repro:
   - Command, input, environment, last known good commit.
3. Hypotheses (max 3) ranked by likelihood.
4. Test each hypothesis with the smallest possible check.
5. **Before Fix:** Root cause must be clearly stated; one minimal verification step must be given. Then: Fix + verify with test/run.
6. Add a prevention note (test, guard, logging).

## Output
- Symptom → Most likely cause → Fix → Verification command(s).

Files: 1

Size: 1.2 KB

Complexity: 10/100

Category: General

Source: https://github.com/janjaszczak/cursor/tree/main/skills/troubleshooting-rca

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