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Agents2026-07-11 · source-backed
The paper argues a single ReAct-style search agent is bottlenecked by one long trajectory, forcing a depth-versus-coverage trade. WebSwarm lets sub-agents spawn their own sub-searches, beating flat parallel-then-aggregate designs on both recursive depth and collaboration. If you're building a deep-research harness, this is the architecture reference. Flat fan-out hits a ceiling that recursion doesn't.
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