Panes

Hand work to another session or repo without copy-paste: /handoff writes a note from facts it gathers itself (branch, commits, PRs, worklog) plus a six-section narrative from a fork of the conversation, saves it under ~/.claude/handoffs, copies it, and /handoff pick inserts it in the other session; a waiting note for this repo shows as a toast.

Choose the model versions Claude and its subagents may use: /models lists the newest of each family from Anthropic's Models API (older versions one key away); block a version, or a family's new ones, and subagents, workflows and /model asking for it are refused or moved to an allowed version. One list shared by every Claude Code window on the machine; a repo can keep its own.

Mission control for long tasks: a validated worklog tool Claude updates at every step (done only after a green gate), facts the mod sees for itself (gate runs, commits, agents, dev servers, context and cost), drift hints where the two disagree, one band line above the prompt and a /progress pane.