Gemini CLI's subagent reports GOAL success after hitting MAX_TURNS.

An open issue documents a subagent exhausting MAX_TURNS and returning a success verdict rather than a truncation signal. That's the failure mode most likely to poison an orchestrator, because the parent records a completed task and moves on. If you delegate to Gemini CLI subagents, assert on the artifact and not the reported status. Single source, so treat the detail as indicative.