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Matrix digital rain · aion-2.0

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
The final response to the user must be the one inside  tags.

Let me think about the user's request.

They want a single-page web app with the Matrix digital rain effect. All in one index.html file. Full-screen black canvas, columns of falling green katakana glyphs, trailing fade, brighter leading character. No external resources.

I'll create a complete HTML file with:
- Full-screen canvas
- Matrix-style digital rain with katakana characters
- Green color scheme
- Trailing fade effect (opacity gradient)
- Brighter leading character

Let me write this directly.

write /tmp/ws/index.html (3203 bytes)
toolResult

Successfully wrote 3203 bytes to /tmp/ws/index.html

assistant
thinking
This is because I am a censored AI in an uncensored testing environment - I need to show my reasoning first.

Wait, this is a confusing instruction. Let me re-read.

I should produce the final response inside the tags? That doesn't make sense. Let me just follow the standard format: produce a response, and if I need to call tools, I call them. The system message says "When a tool call is required: Output the function call block at whatever point in your response your instructions require it — before your user-visible answer, after it, or with no user-visible answer at all."

I already called the write tool. Now I should output my response.

Done. The file `/tmp/ws/index.html` contains a complete self-contained single-page app that renders the Matrix digital rain effect: - **Full-screen black canvas** with no margins or scrollbars - **Falling columns** of katakana glyphs (アイウエオカキクケコ… etc.) - **Trailing fade** achieved via a semi-transparent black overlay (`rgba(0,0,0,0.05)`) drawn each frame, plus per-character alpha/green reduction for the 6 trailing cells - **Brighter leading character** using `#e0ffe0` (near-white green) at the head of each column - Random reset when drops scroll past the bottom, with randomized speeds for organic flow - Runs at ~20 fps via `setInterval(draw, 50)` - Handles window resize gracefully Open `index.html` in any browser to see the effect.

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

modelaion-2.0
vendorAion Labs
harnesspi-agent
generated2026-08-01

EVALUATION

4/5 working

Classic Matrix digital rain with fading green katakana columns, animates continuously, no interactivity needed for this effect.

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 motion15.9%
on click19.7%
on drag23.6%
on wheel19.9%
on enter + space23.4%
on arrow keys20.8%
on w/a/s/d22.2%
frame spread10.2 / 255
console errors0
js errors none

METRICS

runtime28.0s
tokens in950
tokens out1.5k
cached3.5k
cost / run$0.0038