A command line runs as its own command pane unless it is clicked at a shell's prompt

A middle click, an exec write or a tag word that no builtin knows was typed
into some terminal for the pane's directory, sharing whatever state that
shell was in and answering nothing, so a misspelling vanished into a shell.
Now only a line clicked at an interactive terminal's prompt is typed there.
From anywhere else it runs as a command pane: a terminal whose child is
$SHELL -c the line in the pane's directory, full emulation, which shows its
output and then exit N from the host's reaping of the child, and stays. A
finished command pane is the next command's for its directory, which runs
below what it showed after a '% line' line (acme appends to +Errors and never
clears it, util.c:213); a running one gets a second pane. Kill ends a command
pane's whole process group, the log records run and exit, exec reads back the
command pane's serial, and a line is at most 1 KB, read off the pane as the
host forks rather than carried in every spawn effect. ttyForDir's search for
a free shell is gone. The goldens of chordcut, cmdword and layout-open change
where a file's exec now opens a command pane, and ttytaken is rewritten to
exec from the terminal itself; docs/open-questions.md records the decision.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/detached/server.zig b/src/detached/server.zig
index 61fbe111..86ba2206 100644
--- a/src/detached/server.zig
+++ b/src/detached/server.zig
@@ -679,9 +679,12 @@ pub const Session = struct {
     }
 
     fn paneEof(s: *Session, pane: u8) void {
+        // Reaped here, its status kept, it is no shell to retire.
+        const status = host_io.exitStatus(s.ptys[pane].pid, 100);
+        if (status != null) s.ptys[pane].pid = 0;
         s.closePty(pane);
         s.harvest();
-        s.core.update(.{ .eof = .{ .pane = pane } });
+        s.core.update(.{ .eof = .{ .pane = pane, .status = status } });
     }
 
     fn harvest(s: *Session) void {