Fork-like git worktree for DeepSeek Harness (DSH): create an isolated git worktree from a workspace/session and open a new session in it — optionally forking the conversation so the child inherits all history and works on its own branch.
A DSH web client plugin that turns the Settings → Plugins page into a dependency-layered plugin tree, plus an interactive dependency graph. Dependencies are prerequisites: see at a glance how plugins stack on each other, toggle them, and check for updates.
Left-sidebar session tree for DeepSeek Harness: every session with its nested subagent descendants, click-through to multi-turn conversations, plus the tree_send tool for messaging any continuable session across the tree.