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Matrix digital rain · kimi-k3

Create the Matrix digital rain effect on a full-screen black canvas: columns of falling green katakana glyphs with a trailing fade and a brighter leading character.

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transcript · 4 messages
user

Create the Matrix digital rain effect on a full-screen black canvas: columns of falling green katakana glyphs with a trailing fade and a brighter leading character.

assistant
thinking
Write a single index.html with matrix rain.
write /workspace/index.html (2320 bytes)
toolResult

Successfully wrote 2320 bytes to /workspace/index.html

assistant

Created `/workspace/index.html` — a self-contained Matrix digital rain effect: - **Full-screen black canvas**, responsive to window resize - **Katakana glyphs** (plus digits) in green, falling per column - **Trailing fade** via translucent black overlay each frame - **Brighter leading character** (near-white `#d6ffd6`) with green trail behind - Columns reset at random heights for staggered, natural rain; ~30fps for classic pacing Open it in any browser — no network or external resources needed.

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

modelkimi-k3
vendorMoonshot · Kimi
harnesspi-agent
generated2026-07-28

EVALUATION

4/5 working

Classic Matrix digital rain with green katakana columns, fading trails, and bright leading chars, animates continuously; no interactivity but not required.

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 motion29.4%
on click27.1%
on drag31.8%
on wheel30.9%
on enter + space32.5%
on arrow keys25.1%
on w/a/s/d29.9%
frame spread12.9 / 255
console errors0
js errors none

METRICS

runtime25.2s
tokens in1.5k
tokens out874
cached2.0k
cost / run$0.0043