Piano synth · north-mini-code

Using the pre-provided tone.min.js (global Tone), build a playable piano keyboard controlled by mouse and computer keys that synthesizes notes with an ADSR envelope and visual key feedback.

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transcript · 4 messages

user

Using the pre-provided tone.min.js (global Tone), build a playable piano keyboard controlled by mouse and computer keys that synthesizes notes with an ADSR envelope and visual key feedback.

assistant

thinking

Let me work through this task step by step:

1. First, I need to understand the current directory and what files are available
2. I need to check if tone.min.js is available in the current directory
3. I need to build a single-page web app (index.html) with:
   - Piano keyboard controlled by mouse
   - Piano keyboard controlled by computer keys
   - ADSR envelope synthesis
   - Visual key feedback
   - All in one self-contained file
   - Using tone.min.js from the current directory

Let me start by exploring the current directory.

→ bash {"command":"ls -la"}

toolResult

total 388 drwxrwxrwx 3 node node 96 Jul 22 17:53 . drwxr-xr-x 1 root root 4096 Jul 22 17:53 .. -rw-r--r-- 1 node node 349169 Jul 22 17:53 tone.min.js

TAKE IT TO CODE

This run produced no artifact — reuse the prompt with a different model or your own pi-agent run.

RUN

modelnorth-mini-code

vendorCohere

harnesspi-agent

generated2026-07-22

METRICS

runtime—

tokens in1.2k

tokens out128

cached0

cost / run$0.0000