DeepSeek Harness bundle: register Claw Orchestrator as an ACP subagent provider — delegate a dsh subagent to a multi-engine council across Claude Code, Codex and Cursor.
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.