dsh-restart-button

A small DeepSeek Harness (DSH) plugin that adds a floating quit button to the bottom-right corner of the Web GUI. (It used to restart; v0.3.0 changed it to a full exit. The package keeps its original name.)

Click it once → a themed confirm card asks if you're sure → dsh web fully exits and its port is released. The next launch is a cold start.

What it does

Install

dsh plugin --profile web add "dsh-restart-button"

Then restart dsh web. The quit button appears in the bottom-right corner.

How it works

• Server half (lib/index.js): a cordis plugin that registers the loopback-only POST /api/dsh-restart/quit route. It writes the 200 first — the client renders its result card from that response, because there is no server left to ask afterwards — then calls the host's ctx.appExit seam.
• Exit: ctx.appExit runs DSH's own bounded shutdown — the plugin tree is disposed, then a hard exit after 5 s if disposal hangs. The plugin adds its own force-exit fallback at 8 s, deliberately after that grace, so the tree always gets its turn and the fallback only catches "disposed but the event loop never drained".
• Client half (lib/client.js): plain-DOM, no React, no build step. Loaded through window.__ModuleLoader__, it appends the floating button, shows the confirm card, and after confirming polls the origin until requests stop being answered — a rejected fetch is the only honest "it is really gone" signal available from inside the page.

Security

• The route is loopback-only (peer socket + Host header + same-origin fence), matching the DSH plugin family convention.
• Quitting spawns no process and writes no file. scripts/check.mjs fails the build if the host half ever grows a spawn again.

License

MIT

Repository

https://github.com/hadesybil-hub/dsh-restart-button