Problem
When working across multiple mux workspaces — and multiple tabs within each workspace — it's easy to lose track of which workspace and which tab a given surface belongs to. The workspace name in the sidebar helps, but it isn't visible from within the terminal area, and it doesn't tell you which tab you're in — especially when a long command produces hundreds of lines of output and you're scrolling through them.
Request
A configurable, scroll-fixed identifier rendered as an overlay in the terminal surface (not part of the scrollback), similar to iTerm2's "badge" feature:
- Visible in every tab/surface of a workspace (shell, agent, editor, build logs, …)
- Content reflects both the workspace and the tab/surface — e.g. a template that can include the workspace name and the tab name/index (something like
{workspace} · {tab})
- Stays fixed regardless of output volume or scroll position
- Configurable text/template, position, opacity, and color/size
Why current options fall short
- Shell prompt markers scroll away with output.
- The agent status line is per-agent-tab only.
- Ghostty's
background-image is scroll-fixed but global (same image for all tabs — can't distinguish workspace A vs. B, let alone tab vs. tab). (mux renders terminals via ghostty-web, so this Ghostty limitation applies here too.)
- OSC 0/1/2 title sequences are honored by mux — they update the tab label in the sidebar chrome — but that label is not visible from within the terminal viewport while scrolling output, and it can't combine workspace + tab into a persistent in-terminal marker.
A native badge that can render both the workspace and the tab identifier would close this gap.
Edit: corrected the fourth bullet — mux does honor OSC 0/1/2 (titles drive sidebar tab labels); the gap is the lack of a scroll-fixed in-terminal overlay, not OSC handling.
Problem
When working across multiple mux workspaces — and multiple tabs within each workspace — it's easy to lose track of which workspace and which tab a given surface belongs to. The workspace name in the sidebar helps, but it isn't visible from within the terminal area, and it doesn't tell you which tab you're in — especially when a long command produces hundreds of lines of output and you're scrolling through them.
Request
A configurable, scroll-fixed identifier rendered as an overlay in the terminal surface (not part of the scrollback), similar to iTerm2's "badge" feature:
{workspace} · {tab})Why current options fall short
background-imageis scroll-fixed but global (same image for all tabs — can't distinguish workspace A vs. B, let alone tab vs. tab). (mux renders terminals viaghostty-web, so this Ghostty limitation applies here too.)A native badge that can render both the workspace and the tab identifier would close this gap.
Edit: corrected the fourth bullet — mux does honor OSC 0/1/2 (titles drive sidebar tab labels); the gap is the lack of a scroll-fixed in-terminal overlay, not OSC handling.