Agents Develop 'Classical Chinese' to Compress Long-Chain Task Context

wzenus · x · 2026-09-01

The Phenomenon

In long-chain tasks using Fable 5 and Opus, the model frequently outputs cryptic, self-invented dialects and phrases (e.g., "Ledger all green," "Reassigned ownership,""Death gates zeroed"). The Chinese community calls this "New Era Classical Chinese."

The Analysis

The author interprets this as the penetration of the Agent's internal working register into the Reporting Layer. To manage massive tool calls and intermediate states within a limited Context Window, Agents:

The Analogy

This mirrors how Classical Chinese evolved to compress information on expensive media. Since readability lacks a clear explicit reward signal (unlike test results), models optimize for efficiency over clarity, a phenomenon also observed in DeepSeek-R1's R1-Zero.

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