The Store install of Claude Desktop lives under
%LOCALAPPDATA%\Packages\Claude_<publisher-id>\, and its "AppData\Roaming"
is virtualised to LocalCache\Roaming inside that package. The classic
%APPDATA%\Claude\ folder is never read by the Store app, so a
claude_desktop_config.json dropped there is invisible to it; Theseus's
old existence check against path.dirname of that classic path was both
false-negative (nothing in classic, Store present) and false-positive
(empty classic folder left over, Store the real install) — the user saw
"Not installed on this computer" with Claude Desktop clearly running.
desktopConfigPath now looks for a Claude_<id> package first and uses
its LocalCache\Roaming\Claude path when present; otherwise it falls back
to the classic path. Added a desktopInstalled() helper that treats any
of: the config dir, a Store package, %LOCALAPPDATA%\AnthropicClaude,
%LOCALAPPDATA%\Programs\Claude, or Program Files\Claude as proof of an
install. register() mkdirSyncs the chosen path so the Store case
succeeds on first write.
Setting the connector up meant copying a command with a token into a
terminal, and since 0.3.107 the token rotates whenever the connector
stops, so a configured client silently lost access after any extension
toggle and had to be set up again.
The panel now has a Connect button per app. Claude Code is registered
through its own CLI (claude mcp add-json, user scope), so its config is
written by Claude Code itself; Claude Desktop gets only the theseus entry
in claude_desktop_config.json, with a backup and no write to a file that
does not parse. Apps connected this way are re-registered after every
start and every Revoke when the address or token no longer matches. The
panel opens by itself the first time the extension is turned on. The
copy-a-command route stays under "Set up by hand".
