Diagnosing Failure Modes of Shared-State Collaboration in Resource-Constrained Visual Agents

In three linesCoSee, an auditing framework, analyzes failure modes of modular visual reasoning systems using shared working memory. On 4B–8B models, two dominant failure modes emerge: Noise Reinforcement (reusing ungrounded notes) and Policy Collapse (under-specified answers). The study shows naive shared workspaces amplify hallucinations without explicit verification.

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