When Agents Go Quiet: Output Generation Capacity and Format-Cost Separation for LLM Document Synthesis

Solving the silent failure of LLM agents through deferred template rendering and output capacity optimization.

LLM-powered coding agents suffer from a poorly understood failure mode we term output stalling: the agent silently produces empty responses when attempting to generate large, format-heavy documents. We present a theoretical framework that explains and prevents this failure throug...

ArXiv CS.AI2026-04-21