routr-depth-debug

name	routr-depth-debug
description	Structured debugging when systematic-debugging is not installed. Use when: routr-debug bootstrap fails, child debug skill missing, or agent about to guess fixes.

routr-depth-debug

Fallback depth for routr-debug. Load only when systematic-debugging is not installed.

Iron law

NO FIXES WITHOUT ROOT CAUSE INVESTIGATION FIRST

Four phases (complete each before next)

Phase 1: Root cause investigation

1. Read error messages and stack traces completely
2. Reproduce — document exact steps; if not reproducible, gather data
3. Check recent changes (git diff, deps, env)
4. Multi-component: log at each boundary, run once, localize failure layer

Phase 2: Hypothesis

1. One-sentence root cause theory
2. Minimal experiment to confirm/deny
3. Max 3 parallel hypotheses

Phase 3: Fix

1. Smallest diff for confirmed root cause
2. No drive-by refactors

Phase 4: Verify

1. Re-run reproduction
2. Check callers for blast radius

Tool discipline

1. Search/narrow before whole-file reads
2. Read only hot paths (signatures → lines range)
3. Do not load unrelated skills

Install full skill

npx skills add obra/superpowers -g --skill systematic-debugging -y --copy

Then follow systematic-debugging/SKILL.md exclusively.