DL-247

The title= adoption boundary: the coaching sweep converts ONLY the seven command-backed title= sites (LeftSidebar view buttons ×4, App.tsx Bridge tab + both sidebar toggles), removing the native title (no double-tooltip) and keeping aria-keyshortcuts (DL-234, the AT-authoritative chord); every other title= (command-less actionable controls, truncation/status text) stays native, per DL-229 (no command registered purely for discoverability). The two sidebar-toggle chords (Mod+\/Mod+Shift+\, keymap.ts:116-117) are dead today (declared in the keymap, registered nowhere — the buttons call store.toggle*() directly), so this record registers exactly sidebar.toggleLeft/sidebar.toggleRight beside their existing store behavior (DL-229-compliant) so the coached chords actually fire — Matt-ruled 2026-08-23, amending the record’s “registers nothing new” constraint over shrinking the sweep to five live sites.

Status: Active (Matt, 2026-08-23)

Record: ../../ui/compass-coaching-tooltips/design.md#a4–adoption-boundary-the-title-classification