你的 Mac、你的浏览器、你的手机 —— 一个 DSH

No existing script. So the "random unique app id" pattern is something the agent does ad hoc: modify Info.plist bundle id and install to a temp location. That implies the harness has no built-in way to run more than one instance.

Now screenshot capture. Let me check what CU returns and the Chrome bridge state.

Inspect CU output shape and Chrome status

tools-ptc

The CU screenshot works and the harness normalizes it to a path I can read. The image shows the DSH Mac app with the sidebar. Nice.

CU works. Now I need pixel-perfect files — checking the best capture path.

Check tooling for window screenshot capture

swift is available. Let me write a small Swift helper that lists windows (id, owner pid, name, bounds) using CGWindowListCopyWindowInfo, and prints JSON. Then I can pick the window and capture just that rect.

Build window lister to find window IDs

The window lister works. Note the user's app (pid 67414) window id 49316 at 1280x800, and a test instance pid 91280 (new, launched recently — ids 49784, 49777).

The window lister works. Capturing the Mac app window now.

Error: code run failed (exception): ToolCallError: cannot read "/Users/user/dshapp/dsh-site/static/img/shots/macos-app.png"

"could not create image from window" — Screen Recording permission may be missing for the process running bash, or window id changed. Let me check: the window list still shows the same id.

Check CU attachment resolution

1229x768 JPEG. That's the CU output resolution. Usable but soft for a hero image.

Test screen capture permission

Full-screen capture is blocked (TCC). So `screencapture` is unusable. I'll use CU's screenshots (which work) as the image source, via a Swift window-capture helper.