Triage
Confirmed on current main, which is the same tooltip code as v0.0.42. The hover tooltip is the absolute path, but it is forced onto one line and clipped at the tooltip’s max width, so the filename drops off the right edge. Paths that share a long prefix look identical. That matches the screenshot cutting off at /generat.
The chip label is only the basename (plus a parent suffix when two basenames collide). The full path is only in the tooltip, in MarkdownFileLink in apps/web/src/components/ChatMarkdown.tsx: targetPath inside a whitespace-nowrap overflow-x-auto box. That box sits in TooltipPopup (apps/web/src/components/ui/tooltip.tsx), whose viewport is overflow-clip and whose code variant is capped at max-w-120. The positioner is pointer-events-none, so the pointer never enters the popup. With overlay scrollbars, which only show while the scroll box is hovered, the overflow reads as a hard cut: no ellipsis, no scrollbar. Copy full path from the context menu still has the whole string, which is why that workaround works.
#11558 makes the popup accept pointer events so a long path can be scrolled and selected. It is the same interaction, but it is not merged, and the filename would still be off-screen until you scroll. Dropping whitespace-nowrap and letting the code tooltip variant wrap would show the full path on hover.
