Lineage lines used to draw one glowing dashed bezier per parent/child pair,
hanging below the tab strip, for every family at once. With a parent on row 3
of a wrapped strip and ten children below it, the curves crossed every lower
row's tab names and ran through the terminal text.
- One rounded orthogonal tree per spawning tab: every route starts at the
parent, so siblings share a trunk. 1.5px, solid, 1px dark outline; only a
working child's branch is dashed.
- Routes run only through the gaps between tab rows, joined by a spine left of
every row (computeLineageTree/computeLineageRows in constants.js), so they
never cross a tab or reach the terminal. The vertical rail gets the same tree
on its existing left track.
- Only the selected tab's family is drawn (what it spawned, plus its parent and
siblings). Selection redraws, and the strip's size transitionend redraws once
more, since the active tab widens for ~150ms after the selection redraw.
- The routing room is reserved by .session-tabs.lineage-tree, keyed on whether
any lineage exists, never on the selection, so a tab switch never resizes the
header or the PTY.
- Colours stay per spawning tab, now claimed in strip order for every family so
selection order never decides who gets the skin blue.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Codeman maintainer
09daf0fe49