DeepSeek Harness Plugin: dsh-cognition (DSNLE) - Project Memory and Constraint System

dsh-cognition is a plugin for DeepSeek Harness (DSH) aimed at addressing agents' lack of persistent project memory. It leverages DSH native primitives to build a four-layer “constraint/observation/memory/verification” mechanism, including learned keyword mapping, historical precedent tracking, and Git change analysis. Users must install it in a Node.js ≥ 22 environment and execute tasks through toolchains such as `nle_suggest` and `nle_mutate`. The plugin supports optional semantic retrieval enhancement, but its recall for Chinese-language tasks over English codebases is relatively weak; it relies on a separate process and does not provide security isolation.