dsh-grayprint: A Dual-Fingerprint Plugin for Thinking Text Styling in the DSH Web Client

dsh-grayprint is a web plugin for DeepSeek Harness that analyzes the writing style of reasoning text in real time within the session page. It provides two independent fingerprints: first, it determines whether the thinking text is closer to the grayscale or the current-version samples, by statistically analyzing first-person phrasing at paragraph openings; second, it tracks the frequency and proportions of "Let me" and "We need" at paragraph openings. The plugin has six built-in guards that refuse to make a judgment or degrade results when, for example, the proportion of Chinese is too high, there are insufficient Latin letters, or the sample size is too small (e.g., fewer than 5 or 48 paragraphs), ensuring statistical validity. The interface is located in the bottom-right corner and supports dragging, collapsing, and following the dsh language settings, with state saved locally. Data is analyzed only within the current browser session, never leaves the local machine, and is not used to determine model version, capability, or backend routing. Installation requires dsh CLI 0.1