The Inverse-Wisdom Law: Architectural Tribalism and the Consensus Paradox in Agentic Swarms

• URL: http://arxiv.org/abs/2604.27274v1
• Date: Thu, 30 Apr 2026 00:06:21 GMT
• Title: The Inverse-Wisdom Law: Architectural Tribalism and the Consensus Paradox in Agentic Swarms
• Abstract summary: We formalize the Consensus Paradox: a phenomenon where agentic swarms prioritize internal architectural agreement over external logical truth.<n>We prove the Inverse-Wisdom Law: in kinship-dominant swarms, adding logical agents increases the stability of erroneous trajectories rather than the probability of truth.<n>We also establish the Architectural Tribalism Asymmetry as a mechanistic law of transformer weights.
• Score: 6.357772907811544
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: As AI transitions toward multi-agent systems (MAS) to solve complex workflows, research paradigms operate on the axiomatic assumption that agent collaboration mirrors the "Wisdom of the Crowd". We challenge this assumption by formalizing the Consensus Paradox: a phenomenon where agentic swarms prioritize internal architectural agreement over external logical truth. Through a 36 experiments encompassing 12,804 trajectories across three state-of-the-art (SOTA) benchmarks (GAIA, Multi-Challenge, and SWE-bench), we prove the Inverse-Wisdom Law: in kinship-dominant swarms, adding logical agents increases the stability of erroneous trajectories rather than the probability of truth. The introduction of additional logical audits converges the system toward a Logic Saturation where internal entropy hits zero while factual error hits unity. By evaluating the interaction between the 3 preeminent SOTA models (Gemini 3.1 Pro, Claude Sonnet 4.6, and GPT-5.4), we establish the Architectural Tribalism Asymmetry as a mechanistic law of transformer weights. We demonstrate that terminal swarm integrity is strictly gated by the synthesizer's receptive logic, rather than aggregate agent quality. We define the Tribalism Coefficient and the Sycophantic Weight as the primary mechanistic determinants of swarm failure. Finally, we establish the Heterogeneity Mandate as a foundational safety requirement for resilient agentic architectures.

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