Reaction-diffusion · seed-2.0-code

Output generated Cost / run $0.0241 Runtime 1200.0s

Prompt for this run

Run a Gray-Scott reaction-diffusion simulation on a canvas that grows organic Turing patterns in real time, with the mouse seeding new growth.

⛨ 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

modelseed-2.0-code

vendorByteDance · Seed

harnesspi-agent

generated2026-08-13

METRICS

runtime1200.0s

tokens in39k

tokens out6.0k

cached26k

cost / run$0.0241

Transcript · 12 messages

user

Run a Gray-Scott reaction-diffusion simulation on a canvas that grows organic Turing patterns in real time, with the mouse seeding new growth.

assistant

thinking

Let me create a Gray-Scott reaction-diffusion simulation as requested. This is a well-known pattern formation system that models chemical reactions. I'll implement it on an HTML5 canvas with real-time simulation, mouse interaction, and responsive design.

Key features needed:
1. Canvas-based simulation using 2D context
2. Two floating-point grids (current and next state) for chemicals A and B
3. Laplacian operator for diffusion
4. Reaction kinetics (feed and kill rates)
5. Mouse interaction to seed B concentrations
6. Color mapping for visualization
7. Performance optimizations

Let me write this as a single self-contained HTML file.

→ write /tmp/ws/index.html (17998 bytes)

toolResult

Successfully wrote 17998 bytes to /tmp/ws/index.html

assistant

thinking

The file has been created successfully. Let me verify it exists and is well-formed by checking its contents briefly.

→ bash {"command":"ls -la /tmp/ws/index.html"}

toolResult

-rw-r--r--. 1 node node 18000 Aug 13 01:32 /tmp/ws/index.html

assistant

thinking

The file is present. Let me now start a simple web server to serve it, so the user can view the simulation.

→ bash {"command":"cd /tmp/ws && python3 -m http.server 52197","timeout":3600}

toolResult

/bin/bash: line 1: python3: command not found Command exited with code 127

assistant

thinking

Python3 is not available. Let me try with node to create a simple server, or check what's available.

→ bash {"command":"which node npx python2"}

toolResult

/usr/local/bin/node /usr/local/bin/npx Command exited with code 1

assistant

thinking

Node is available. Let me create a simple HTTP server using Node.js to serve the index.html file.

→ write /tmp/ws/server.js (842 bytes)

toolResult

Successfully wrote 842 bytes to /tmp/ws/server.js

assistant

thinking

Now let me start the Node.js server to serve the simulation.

→ bash {"command":"cd /tmp/ws && node server.js","timeout":3600}