Every App Settings Save up to 1.49.0 wrote `agentSkillEnabled: false`, chosen
or not (the switch loaded an absent key as off and Save sends the whole form),
so the new default never reached an install that had ever saved. On its first
start the server now replaces a stored false with true, once per data dir, and
logs one line when it does. It cannot tell a deliberate off from the old
default; that is accepted and stated in the release notes. An off set after it
ran stays off.
It stores true rather than deleting the key: the page's merge overwrites only
the synced keys the server has, so every device that saved on 1.49 kept its own
false, showed the switch off and wrote false back on its next Save (measured in
the JSDOM harness). True wins on every device, including a browser still on a
cached settings-ui.js. For a server with no key the page now drops the device's
copy as well, so the switch shows the default.
The "done" marker is its own file, `agent-skill-default-migrated.json` in the
data dir: it is not a setting, so GET /api/settings never returns it, no Save
can send it back (the strict schema would refuse it) or drop it (which would
re-arm the migration), and a config-backup restore leaves it alone. It is
checked before anything is read and written only after the settings write
landed. The migration runs in WebServer.start() before the first settings read
and before listen (skipped in test mode, like the other boot-time writes),
writes only through mutateSettingsFile(), drops the 2 s settings cache, and
leaves a settings.json that does not parse alone with no marker, so the next
start after the fix runs it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
