[trissim]

Toad froze for Tristan with its screen covered in Failed to show notification: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name is not activatable, one line per bus message.

Cause: notifypy chooses its notify-send path whenever notify-send is installed (notifypy/notify.py:136-140). That path runs subprocess.check_output with stderr inherited (notifypy/os_notifiers/linux.py:86), so with no notification daemon running, notify-send's error lands on Toad's terminal once per notification.

Fix, at the owner (NotificationPolicy in setting_choices.py):

• On Linux, use notifypy's D-Bus notifier through its declared use_custom_notifier hook. It starts no child process, so nothing can write over the TUI.
• That notifier reports a D-Bus error reply as delivered (it never checks the reply type), so UncheckedDBusDesktop asks the session bus once whether org.freedesktop.Notifications is owned or activatable. If neither, the policy becomes AbsentDesktop: one in-app warning, and no further attempts for the session.
• jeepney==0.9.0 (linux) is declared, since Toad now imports it directly. uv.lock is updated by hand because uv isn't available on this machine.

Manual check (installed runtime interpreter, this branch's src, Python stderr captured the way Textual captures it, fd 2 sent to a file):

• main, notify-send path: send -> False and fd 2 got Failed to show notification: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name is not activatable
• this branch, 3 deliveries: state AbsentDesktop, 1 in-app notice, fd 2 0 bytes

There's no new test: it's a trivial edit, per Tristan.

Platform family (send-back fix, 051b834)

The first head chose the notifier with toad.os == "linux" and the app name with toad.os == "macos" (IMPL-1). toad.Platform is now one family decoded once from platform.system(): the base answers desktop() -> DesktopService(), application_name "Toad" and select(matrix) (exact key or "*"); LinuxPlatform overrides desktop() with UncheckedDBusDesktop(), MacPlatform overrides the name. Deleted: both compares, _OS_map, toad.os, get_os_matrix (a second copy of commands_for's selection), the second OS literal in agent_schema, and agent_modal's cast. The catalog's TOML key stays a string, as the external format, carried once per member as key.

Interpreter check on this machine: toad.platform -> LinuxPlatform, key linux, name "Toad"; NotificationPolicy.desktop -> UncheckedDBusDesktop; notifypy is not imported by import toad or setting_choices. No tests run (owner order).

🤖 Generated with Claude Code

https://claude.ai/code/session_013ejYrMLnLWah8wCDDcb57V

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