Brain lab · 6 min
Context engineer
Pack system, RAG, and tools into a token budget.
Arcade: 0 XP · 0d streak — clever clears earn up to ★★★.
Missions + free play. On phones: swipe missions, expand Controls when needed.
Sandbox · deep mode
Context engineer
Pack system, memory, RAG, and tools into a token budget — overflow hurts answers.
Pack under budget without dropping system rules or the user question.
Controlstap to expand
Overflow — drop or summarize before the model truncates blindly.