handoff

apps/booterm/src/pty/pty.ts

@@ -3,7 +3,6 @@ import type { IPty } from 'node-pty';
 
 export interface AttachPtyOptions {
   sessionName: string;
-  windowName: string;
   projectRoot: string;
   cols: number;
   rows: number;
@@ -19,16 +18,24 @@ function cleanEnv(): { [key: string]: string } {
   return out;
 }
 
-// Spawns a tmux client attached to the given session+window. `-d` detaches any
-// other client so a browser refresh takes over the same window without
-// duplicate input. tmux server (and the window) persists across PTY exits.
+// v1.10.8c: no `-d` (multi-attach friendly — boolab pattern). With per-pane
+// tmux sessions, dropping `-d` means multiple browser tabs viewing the same
+// pane share one tmux session as N clients; tmux fans I/O at the session
+// layer just like boolab's backend. The earlier `-d` flag detached EVERY
+// other client of the session — across windows — which caused the
+// "[detached] from session" bug whenever a new pane attached to a chat
+// session that already had another pane open.
+//
+// Tmux server + session persist across PTY exits, so a refresh resumes with
+// full scrollback. Explicit destroy happens via the /kill route (called from
+// the frontend when the user closes a pane).
 export function attachPty(opts: AttachPtyOptions): IPty {
   return pty.spawn(
     'tmux',
     [
       '-f', opts.tmuxConfPath,
-      'attach-session', '-d',
-      '-t', `${opts.sessionName}:${opts.windowName}`,
+      'attach-session',
+      '-t', opts.sessionName,
     ],
     {
       name: 'xterm-256color',