Vision UI reproduction

Goal

Use the sandbox view_image tool to inspect a reference app screenshot, then reproduce the visible screen as a static HTML/CSS artifact. This is a narrow UI repro target for vision and screenshot-debugging; it is not a web-app scaffold.

This demo is intentionally file-only: no FastAPI, no exposed port, and no local browser server. The agent calls view_image, lazy-loads the playwright skill, writes the site under output/site/, captures browser screenshots for visual revision, and the host copies the generated site plus the visual-review artifacts back to this example's output/ directory.

Setup

Run the Unix-local example from the repository root:

bash

uv run python examples/sandbox/tutorials/vision_website_clone/main.py

To run the same manifest in Docker, build the shared tutorial image once and pass --docker:

bash

docker build -t sandbox-tutorials:latest -f examples/sandbox/tutorials/Dockerfile .
uv run python examples/sandbox/tutorials/vision_website_clone/main.py --docker

Expected artifact

output/index.html
output/styles.css
output/screenshots/draft-1.png
output/screenshots/draft-2.png
output/visual-notes.md

Open output/index.html locally after the run to inspect the generated clone. Open the copied draft screenshots to inspect the agent's visual-debug loop.

Demo shape

Inputs: one checked-in PNG reference screenshot mounted under reference/.
Runtime primitives: sandbox-local shell/edit tools, view_image, and the lazy-loaded playwright skill.
Required vision call: view_image("reference/reference-site.png").
Required debug loop: capture output/screenshots/draft-1.png, view it with view_image, revise, then repeat with output/screenshots/draft-2.png.
Artifact path: the sandbox agent writes output/site/, output/screenshots/, and output/visual-notes.md; main.py copies the site files and review artifacts to this example's output/.