dsh-quick-window-launcher

The DeepSeek Harness Web UI is confined to a browser tab by default, lacking both a native-app feel and a centralized place to manage its lifecycle. dsh-quick-window-launcher unifies both: it creates a desktop shortcut that, when double-clicked, spawns a frameless Chromium --app window with no tab bar and no address bar, delivering an experience close to a native desktop application. The launcher performs multi-signal liveness detection (port check plus task-board lock) to prevent conflicting duplicate instances, and automatically retrieves the authentication token from harness to sign a session cookie for the isolated window, eliminating repeated logins.

A glass-capsule power control group appears at the bottom of the sidebar: Shutdown (graceful stop with session persistence), Restart (a watchdog outside the harness process tree spawns the new instance, with heartbeat self-healing and lock release), and DSH Update Check (queries the latest npm version and opens a visible terminal for one-click upgrade). On the model side, the open_web tool lets harness open any http or https URL in a new tab of the system default browser, following the convention of opening external pages rather than embedding them.

Ideal for desktop-first users who want a near-native App experience and reliable lifecycle management without touching PowerShell scripts. The entire host-side implementation uses pure Node .cjs helper scripts with no .ps1 files, avoiding antivirus heuristic false positives. All network activity is limited to loopback port probes and npm registry version lookups; nothing touches the registry, scheduled tasks, or startup items.