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Matrix digital rain · seed-2-1-turbo

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
To create the Matrix digital rain effect, I will make a single HTML file with full-screen canvas.Writing the file is what I will do.
write /tmp/ws/index.html (2115 bytes)
toolResult

Successfully wrote 2115 bytes to /tmp/ws/index.html

assistant
thinking
I'm working on the Matrix digital rain effect, and have created a self-contained file with a full-screen black canvas.All core features of the Matrix digital rain effect have been finalized, and I will now verify the correctness of the generated file.

Created `/tmp/ws/index.html` — a self-contained Matrix digital rain effect: - **Full-screen black canvas** with no scrollbars - **Columns of falling katakana** (plus dakuten/handakuten variants and digits for variety) - **Trailing fade**: each frame a 5% opacity black rectangle dims previous characters, creating the gradient tail - **Brighter leading character**: pale green (`#ccffcc`) with a soft green glow shadow to make the head of each column pop - Random reset heights so columns stagger naturally - Responsive to window resize Open it directly in a browser to see it run — no network 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

modelseed-2-1-turbo
vendorByteDance · Seed
harnesspi-agent
generated2026-08-13

EVALUATION

4/5 working

Classic Matrix digital rain with green katakana columns, trailing fade, and brighter leading glyphs; animates continuously but no distinct input response.

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 motion30.7%
on click34.5%
on drag37.3%
on wheel35.0%
on enter + space32.7%
on arrow keys33.7%
on w/a/s/d37.0%
frame spread15.6 / 255
console errors0
js errors none

METRICS

runtime21.9s
tokens in4.3k
tokens out1.1k
cached2.7k
cost / run$0.0037