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Drum machine · gpt-5.6-luna

Build a 16-step drum machine with a clickable grid for kick, snare, hi-hat, and clap, all sounds synthesized with the Web Audio API, plus play/stop and an adjustable BPM.

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transcript · 4 messages
user

Build a 16-step drum machine with a clickable grid for kick, snare, hi-hat, and clap, all sounds synthesized with the Web Audio API, plus play/stop and an adjustable BPM.

assistant
thinking
**Crafting index.html**

I need to create an index.html file, and I’ll start by inspecting the current working directory. It’s important to implement a polished design and ensure it’s functional as a single file. I’m thinking about including a visual design with a web audio scheduling system that features a robust 16-step grid with 4 rows, clickable cells, and options for play-stop BPM sliders or inputs. Having a clear/reset function could be useful too, along with synthesized sounds and accessibility considerations. Let’s get writing!
write /tmp/ws/index.html (10853 bytes)
toolResult

Successfully wrote 10853 bytes to /tmp/ws/index.html

assistant

Created `/tmp/ws/index.html` — a self-contained 16-step drum machine with: - Clickable kick, snare, hi-hat, and clap grid - Web Audio API synthesized sounds - Play/stop controls - Adjustable BPM slider and numeric input - Clear pattern button - Current-step highlighting - Spacebar play/stop shortcut - Responsive layout with no external resources

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

modelgpt-5.6-luna
vendorOpenAI
harnesspi-agent
generated2026-08-01

EVALUATION

4/5 working

16-step drum machine with kick/snare/hi-hat/clap grid, tempo slider, and toggleable cells respond to clicks.

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 motion0.0%
on click0.3%
on drag0.1%
on wheel0.1%
on enter + space0.1%
on arrow keys0.0%
on w/a/s/d0.0%
frame spread41.7 / 255
console errors0
js errors none

METRICS

runtime26.2s
tokens in6
tokens out3.7k
cached2.3k
cost / run$0.0134