experiment_id: E4_pilot splits: [dev] lengths: [2000, 8000] limit_docs: 6 hops: [1, 2, 4] budget_tokens: 512 max_fetch_bytes: 1500 max_lookups: 4 chains: - {representation: A4, mode: closed, agents: [qwen3b]} - {representation: A5, mode: closed, agents: [qwen3b]} - {representation: A4, mode: repairable, agents: [qwen3b]} - {representation: A5, mode: repairable, agents: [qwen3b]}