Model benchmark / 2026-11-04

Main prompt

Build a polished, responsive grocery list web app from scratch in a new directory named grocery-app. Starting application files: none. Before building, inspect the environment for automatically cloned repositories or inherited app files; do not use their code. Report any inherited files and provider/environment differences. Use only your own new grocery-app directory. Do not consult other trial results or delegate to other agents.
Requirements: add groceries with name, quantity and category; edit and delete items; mark purchased/unpurchased; filter All/To buy/Purchased; show progress and remaining count; clear purchased items; persist the list in localStorage across reloads. Include a useful initial sample list only on first visit, clear empty states, input validation, accessible labels, keyboard support, and a thoughtful mobile/desktop visual design. No account or external paid services. Stack is your choice.
Test the main interactions and persistence, run an appropriate build/check, and report exact checks and any failures honestly. Provide a README with run instructions.
Make a working public preview following your execution-specific Artos preview instructions. On Boat expose only this app with host <port> --public (use --localhost only for loopback binding), verify the public URL responds, and report a token-free clickable URL. Hosted providers should use their native preview facilities if Boat hosting is unavailable, and report that difference. Keep the preview running according to your execution-specific service instructions.
Finish with: app directory, starting-files inspection, implementation summary, test results, preview URL and HTTP verification, limitations, and any available native timing/usage information. Do not change the selected model or reasoning configuration.