Real AI agent use cases, with sources and setup prompts

One-shot a calming interactive scene as a single small HTML file with Gemini 4 Argon

Using Google's Antigravity editor, a builder asked Gemini 4 Argon for a meditative visual piece and got it back in one shot as a single HTML file of about 56 KB.

$2 in / $10 out per 1M tokens10 minutesBeginnerSource linked

Source

@Saboo_Shubham_ on X · 2026-10-19

Written in our own words. Credit to the original author. Link checked 2026-10-19.

What they did

Using Google's Antigravity editor, a builder asked Gemini 4 Argon for a meditative visual piece and got it back in one shot as a single HTML file of about 56 KB.

Result (as claimed)

A self-contained relaxing scene with no build step.

Tools they used

Cost: Gemini 4 Argon: from $2 in / $10 out per 1M tokens.

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 Gemini 4 Argon 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: One-shot a calming interactive scene as a single small HTML file with Gemini 4 Argon
What the original author did: Using Google's Antigravity editor, a builder asked Gemini 4 Argon for a meditative visual piece and got it back in one shot as a single HTML file of about 56 KB.
Reported result (as claimed by the author): A self-contained relaxing scene with no build step.
Source: https://x.com/Saboo_Shubham_/status/2112067079365160969
Tools they used: Gemini 4 Argon, Antigravity
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 with Gemini 4 Argon and Gemini agents ยท How to build a website with AI agents

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