Real AI agent use cases, with sources and setup prompts

Grow a one-prompt wavetable synth into a browser and DAW groovebox

mgeorgi started with one Claude prompt for a Serum-style wavetable synth and expanded it into an open-source groovebox with a synth, drum synth, 303-style bassline and clip launcher that runs in the browser and as a C++/JUCE plugin with the same DSP.

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Source

@mgeorgi on X · 2026-10-22

Written in our own words. Credit to the original author. Link checked 2026-10-24.

What they did

mgeorgi started with one Claude prompt for a Serum-style wavetable synth and expanded it into an open-source groovebox with a synth, drum synth, 303-style bassline and clip launcher that runs in the browser and as a C++/JUCE plugin with the same DSP.

Result (as claimed)

One sound engine that works in both the browser and a DAW.

Tools they used

ClaudeJUCE

Cost: Pricing depends on the tools you pick; check each official pricing page.

Set it up

  1. Write a one-page brief

    Describe the app in plain words: who it is for, the 3 core screens or actions, and what "done" looks like.

  2. Start the project with your agent

    Open Claude and paste the brief. Ask it to propose a stack and a file plan before writing code.

  3. Build one slice at a time

    Ship the smallest working flow first, run it, then add features one by one. Commit after each working step.

  4. Test it like a user

    Click through on desktop and phone. Ask the agent to add basic tests and fix anything that breaks.

  5. Check security and ship

    Keep keys in environment variables, check auth and database rules, then deploy and share the link.

Copy the full setup prompt

Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.

You are helping me set up this AI use case end to end in Claude Code.

Goal: Grow a one-prompt wavetable synth into a browser and DAW groovebox
What the original author did: mgeorgi started with one Claude prompt for a Serum-style wavetable synth and expanded it into an open-source groovebox with a synth, drum synth, 303-style bassline and clip launcher that runs in the browser and as a C++/JUCE plugin with the same DSP.
Reported result (as claimed by the author): One sound engine that works in both the browser and a DAW.
Source: https://x.com/mgeorgi/status/2113275682868334761
Tools they used: Claude, JUCE
Category: Vibe coding & apps

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

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Guides for this use case

How to build a VST plugin or synth with AI · How to make a song or album with AI · How to build a custom Android TV or Google TV launcher with AI · How to make AI music videos and songs

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