Matrix digital rain · step-3.7-flash

Output generated Cost / run $0.0025 Runtime 21.0s

Prompt for this run

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.

⛨ sandboxed Open in new tab ↗

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

modelstep-3.7-flash

vendorStepFun

harnesspi-agent

generated2026-07-22

METRICS

runtime21.0s

tokens in7.5k

tokens out1.6k

cached5.1k

cost / run$0.0025

Transcript · 6 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 user wants a single-page web app with the Matrix digital rain effect. Let me create a self-contained `index.html` file with all CSS and JavaScript inline. No external resources, CDNs, or network requests.

Features needed:
- Full-screen black canvas
- Columns of falling green katakana glyphs
- Trailing fade effect
- Brighter leading character

→ write /workspace/index.html (3901 bytes)

toolResult

Successfully wrote 3901 bytes to /workspace/index.html

assistant

thinking

The file has been written successfully. Let me confirm it's present and give a quick summary of what was built.

→ bash {"command":"ls -lh /workspace/index.html"}

toolResult

-rw-r--r-- 1 node node 3.9K Jul 22 17:13 /workspace/index.html

assistant

thinking

The file is created and exists. I should provide a concise summary of what's inside index.html so the user knows what they're getting.

Your **Matrix digital rain** is ready at `/workspace/index.html`. ### What's inside | Feature | Impl. | |---|---| | Full-screen black canvas | Auto-fills viewport | | Fading trails | Alpha-clears each frame (`rgba(0,0,0,0.05)`) | | Brighter leading glyph | `#AFFFAF` head, dimmer green trail | | Katakana characters | Full range + small/extended katakana | | Continuous flow | Randomized drop speed/reset per column | | Subtle scanlines | Pure CSS overlay (no images/CDN) | | Self-contained | Zero external resources — works fully sandboxed | Open `index.html` in any browser to see it. Resize the window — it reflows the columns while preserving the rain.