diagnose-rootlisted

# Diagnose Root Four phases — do not skip. Update the active `specs/bugs/BUG-*.md` file at each phase. ## Phases 1. **Reproduce** — minimal steps; record environment; capture logs. 2. **Isolate** — narrow to module/function; binary-search commits or config. 3. **Hypothesize** — list ranked hypotheses with falsification test each. 4. **Verify** — run falsification; confirm single root cause; link to fix plan. > **HARD GATE** — Do not propose a fix until phase 4 confirms one root cause with evidence. ## Verify → verify: `BUG_FILE=$(ls -t specs/bugs/BUG-*.md 2>/dev/null | head -1); test -n "$BUG_FILE" && grep -cE "Reproduce|Isolate|Hypothesize|Verify" "$BUG_FILE" | awk '{if($1>=4) print "OK"; else print "INCOMPLETE"}' || echo "MISSING"`