elegant01/dsh-scalpel: Context comparison and pruning in DSH sessions

dsh-scalpel is a DeepSeek Harness plugin maintained by elegant01, categorized as "Memory," and released under the MIT license. It performs side-by-side comparisons of two (up to three) responses within the same session, featuring paragraph-level alignment and word-level highlighting, and displays token usage and cache hit rates. It also strips specified turns from every subsequent request sent to the model, with rules saved to disk that support hot-reloading and one-click apply or undo. This article provides the official installation command, CLI and panel usage, rule file format, turn number definition, and doctor diagnostics, as well as the design boundaries and unsuitable scenarios regarding the design principle of only modifying request copies without altering the session truth source.