Crosswalk shows which sessions are still working or sitting idle with an activity dot on the tab. It provides hotkeys to jump between tabs and groups quickly. Even if you're not using agents, you can still use it for your terminal work - I commonly leave active projects as groups on the left even if I not working in them right now. There's an MCP server so an agent can launch new tabs (and agents) - it's helpful when you need a lead agent to spawn long running agents (in visible tabs) and then monitor their status (running, stuck, needs user feedback) or compact their context at efficient times. There are other nice features like layouts to view multiple terminals at once and reopens terminals from last session. I spent a bunch of time iterating on the pty host (pseudoterminal host) so updating the app or closing and then reopening will restore the sessions.
This is a paid product you can trial for free. I created it to solve the multi agent bottlenecks so I use it daily, both personally and professionally. For Mac and Windows - Electron based.