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Conway's Game of Life · gpt-5.6-luna

Run Conway's Game of Life on a full-screen canvas grid with click-and-drag to toggle cells, plus play/pause, step, randomize, and clear controls.

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user

Run Conway's Game of Life on a full-screen canvas grid with click-and-drag to toggle cells, plus play/pause, step, randomize, and clear controls.

assistant
thinking
**Creating index.html**

I need to create the index.html file first. I should inspect the current setup to see what's needed. I want to make sure everything’s polished. I’ll write it in a way that ensures the canvas is full-screen, with controls overlaying it. I’ll include features for resizing, drag toggles for cells, and buttons. It looks like I'll be crafting this self-contained. Maybe the user would ask to run it once I'm done.
write /tmp/ws/index.html (60 bytes)
toolResult

Successfully wrote 60 bytes to /tmp/ws/index.html

assistant
thinking
**Planning app development**

I realized I accidentally wrote a partial version, so I need to overwrite it and create a polished app instead. The plan is to make it a single file that works in a fullscreen canvas and includes controls. I need to ensure that everything is readable and user-friendly. It’s important that I take my time with this to make sure the final product is really solid. Let’s start writing!
write /tmp/ws/index.html (8044 bytes)
toolResult

Successfully wrote 8044 bytes to /tmp/ws/index.html

assistant

Created `/tmp/ws/index.html` with a self-contained fullscreen Conway’s Game of Life app featuring: - Click-and-drag cell painting - Play/pause - Step generation - Randomize - Clear - Adjustable simulation speed - Generation, population, and status indicators - Keyboard shortcuts: Space, R, and C - Responsive layout and canvas resizing

TAKE IT TO CODE

A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.

RUN

modelgpt-5.6-luna
vendorOpenAI
harnesspi-agent
generated2026-08-01

EVALUATION

3/5 working

Game of Life grid with click/drag painting cells and space toggling play, but cells vanish over generations (no growth), UI dim and sparse.

Vision grade · anthropic/claude-sonnet-5

MEASUREMENTS

Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.

idle motion0.0%
on click0.0%
on drag0.5%
on wheel0.0%
on enter + space0.7%
on arrow keys0.0%
on w/a/s/d0.0%
frame spread15.3 / 255
console errors0
js errors none

METRICS

runtime21.9s
tokens in9
tokens out2.9k
cached3.5k
cost / run$0.0105