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Fireworks · kat-coder-pro-v2

Create a fireworks display on a full-screen canvas where clicks launch shells that explode into gravity-affected, fading particle bursts.

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transcript · 6 messages
user

Create a fireworks display on a full-screen canvas where clicks launch shells that explode into gravity-affected, fading particle bursts.

assistant
write index.html (16635 bytes)
toolResult

Successfully wrote 16635 bytes to index.html

assistant
bash {"command":"ls -la index.html"}
toolResult

-rw-r--r-- 1 node node 16635 Jul 31 08:48 index.html

assistant

Done! I've created a single-file fireworks display app at `index.html`. **Features:** - **Full-screen canvas** with a dark night sky, twinkling stars, and a city skyline silhouette - **Click anywhere** to launch a firework shell toward that point - **Multiple burst patterns**: classic sphere, ring, double ring, and willow/cascading effects - **Gravity-affected particles** that fade and fall naturally - **Glow effects** with radial gradients for realistic light - **Auto-launch** every 1.5 seconds for ambient fireworks - **Touch support** for mobile devices - **Particle counter** in the bottom-left corner Open `index.html` in any browser to enjoy the show!

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

modelkat-coder-pro-v2
vendorKwaipilot
harnesspi-agent
generated2026-07-31

EVALUATION

4/5 working

Fullscreen canvas auto-launches colorful fireworks with gravity-affected particle bursts; clicks add extra shells over a city skyline.

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 motion12.6%
on click12.2%
on drag7.8%
on wheel10.8%
on enter + space9.9%
on arrow keys13.8%
on w/a/s/d16.8%
frame spread27.8 / 255
console errors0
js errors none

METRICS

runtime81.6s
tokens in17k
tokens out6.1k
cached7.7k
cost / run$0.0107