Number of Tree of Thought branches to explore.
Re-evaluate graph every N completed nodes.
LLM caller used by agent nodes during execution.
Falls back to plannerLlmCaller if not provided separately.
Optional plannerLLM caller used specifically for the Tree of Thought planning phases (decomposition, evaluation, refinement, expansion).
Use a stronger model here (e.g., Opus 4.6) for better plan quality, while execution agents can use a different model (e.g., GPT-5.4).
Defaults to llmCaller if not provided.
Optional plannerHuman-readable label for the planner model (for logging/events).
Optional executionHuman-readable label for the default execution model (for logging/events).
Configuration for the MissionPlanner.