Tested Mario Kart prompt across 4 setups:
• $ASTRA solo
• DeepSeek solo
• $ASTRA + DeepSeek subagent
• DeepSeek + $ASTRA subagent

Winner: DeepSeek as architect + $ASTRA as implementer = most alive game output.

Agent composition matters more than solo power. Architecture + execution split is the meta for AI gaming builds rn.