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[FEATURE]: allow configuring session sidebar width in tui.json #52430
Description
Feature hasn't been suggested before.
- I have verified this feature I'm about to request hasn't been suggested before.
Describe the enhancement you want to request
Problem Description
The right sidebar in the TUI session view is currently hardcoded to 42 columns (width={42} in packages/tui/src/routes/session/sidebar.tsx). On wider displays or when inspecting deep file paths in the "Modified Files" section, 42 columns can be too narrow, causing aggressive truncation. Conversely, on smaller terminals or split panes, a narrower sidebar may be preferred.
Proposed Solution
Expose an optional sidebar_width setting in tui.json:
- Schema: positive integer (columns), default
42. - Read in
packages/tui/src/routes/session/sidebar.tsx:width={tuiConfig.sidebar_width}. - Calculate file path truncation dynamically based on sidebar width rather than a hardcoded
36.
Reacted by Stephan Dollberg
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github-actions commentedon Oct 1, 2026
This issue might be a duplicate of existing issues. Please check:
sidebar_widthoption intui.jsonto configure the TUI sidebar width, with the same default of 42.arnabwithab commentedon Oct 12, 2026
Also want this. Two things worth adding to the proposal above:
SESSION_SIDEBAR_WIDTH = 42inpackages/tui/src/ui/layout.ts(used atpackages/tui/src/routes/session/sidebar.tsx:24), andSESSION_SIDEBAR_MAX_WIDTH = 72is already defined there for the sidebar.verticalTabsWidthlives in thelayoutstore (packages/tui/src/app.tsx) viacreatePaneResize+clampSessionTabsWidth.So rather than only a static config value, the sidebar could reuse that pattern: a
createPaneResizeon the sidebar edge, clamped withclampSessionTabsWidth(width, dimensions().width)and committed tolayout. It would then be drag-resizable at runtime and remembered across restarts.A
sidebar_widthdefault (42, no breaking change) still makes sense for anyone who wants it fixed. 42 cols is tight for plugins rendering intosidebar.content.arnabwithab commentedon Oct 12, 2026
@simonklee are you looking into this for v2?
anazia commentedon Oct 14, 2026
It is indeed a duplicate. Sorry about that. But:
neriousy commentedon Oct 20, 2026
Thanks for the suggestion. We're tracking configurable TUI sidebar width in #35513, so I'm closing this as a duplicate. Please follow that issue for updates.