Condenser (default) — when context grows large, a State Summarizer LLM compresses earlier turns into a structured JSON of trusted/untrusted/uncertain claims, visited sources, and prior search queries; the agent continues with that compact state. Vanilla — memory management disabled; the full conversation history is kept. Discard-all — when context grows large, the entire message history is reset, restarting the agent from the original question with no accumulated context. Hide-tool-result — when context grows large, older tool responses are pruned; only the most recent tool result is kept.