A study introduced DELEGATE-52 to evaluate the readiness of Large Language Models (LLMs) in delegated workflows, revealing that current models degrade documents during delegation, with even frontier models corrupting an average of 25% of document content by the end of long workflows. The experiment involved 19 LLMs and simulated long delegated workflows that required in-depth document editing across 52 professional domains. The study found that LLMs introduce sparse but severe errors that silently corrupt documents, compounding over long interaction. The degradation severity is exacerbated by document size, length of interaction, or presence of distractor files.