DSh Obsidian Second Brain

`dsh-obsidian-second-brain` is a DeepSeek Harness (DSH)-compatible Obsidian plugin designed to transform a note vault into a self-maintaining, AI-first knowledge base. It provides 46 commands covering the full knowledge management lifecycle, including automatic note updates, contradiction reconciliation, hybrid semantic retrieval, and scheduled maintenance. Core features such as structured AI-first writing rules, typed graphs, and a research toolbox help users efficiently organize and retrieve notes during agent sessions, supporting the continuous accumulation of knowledge.