dsh-command-rail: A Codex-style Command History Rail Covering All Sessions

dsh-command-rail is a web-based plugin developed for DeepSeek Harness (DSH), designed to address the inefficiency of backtracking through instructions in long sessions. The plugin retrieves the full conversation history via the official API and generates a Codex-like command rail on the left side of the conversation area. Core features include: hovering to view instruction summaries, smooth click navigation to a specific position, automatic highlighting of the current reading position, and automatic loading of older history. It also offers robust features such as automatic adaptation when switching sessions, a fallback collection mode, and responsive layout. Users can install it using a specified command and efficiently review context in long conversations.