dsh-tool-result-guard: Lossless Tool Result Pruning Plugin for DeepSeek Harness

This article introduces `dsh-tool-result-guard`, an open-source plugin for DeepSeek Harness (DSH) designed to address the loss of intermediate content when pruning extremely long tool results. By preferentially overflowing large text into files while retaining head and tail previews, the plugin ensures that the model can precisely recover truncated data using `read`, `grep`, or `sed`, achieving lossless pruning and full controllability. It is suitable for processing medium-length tool results (8K-50KB), is easy to install, and is released under the MIT license.