Piano synth · claude-opus-5

Output saved · Stopped by an API error Cost / run $0.2331 Runtime 95.2s

A model request failed and its retries ran out. The output is the HTML saved before that.

Prompt for this run

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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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

modelclaude-opus-5

vendorAnthropic · Claude

harnesspi-agent

generated2026-08-03

METRICS

runtime95.2s

tokens in5.0k

tokens out9.2k

cached4.7k

cost / run$0.2331

Transcript · 6 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

I'll build a piano keyboard app with Tone.js.

→ bash {"command":"ls -la /tmp/ws"}

toolResult

total 344 drwxr-sr-x. 2 node node 25 Aug 3 00:23 . drwxrwsrwx. 3 root node 16 Aug 3 00:23 .. -rw-r--r--. 1 node node 349169 Aug 3 00:23 tone.min.js

assistant

thinking

I'm mapping keyboard keys to piano notes across two octaves—the bottom row gets the lower octave starting with Z for C, and the top row handles the upper octave starting with Q, with black keys interspersed using the number and letter rows above them. Writing keyboard mapping...

→ write /tmp/ws/index.html (16784 bytes)

toolResult

Successfully wrote 16784 bytes to /tmp/ws/index.html

assistant