Final two-commit scenario run: one-shot shell-only Effect.die injection on each side. REPRO: injected shell stream defect Error: REPRO: injected shell stream defect REPRO: injected shell stream defect Error: REPRO: injected shell stream defect REPRO: injected shell stream defect Error: REPRO: injected shell stream defect REPRO: injected shell stream defect Error: REPRO: injected shell stream defect Runner verdict: base assertion failed (ask me missing); head assertions passed (ask me and Input visible).