Test a newsletter site in real browsers after the agent says it never ran it
A coding agent built a newsletter site and admitted "I haven't seen it running in a browser yet". TestSprite deployed 3 AI agents to test it in real browsers and produced 11 end-to-end tests.
Source
@intheworldofai on X · 2026-10-22
Written in our own words. Credit to the original author. Link checked 2026-10-23.
What they did
A coding agent built a newsletter site and admitted "I haven't seen it running in a browser yet". TestSprite deployed 3 AI agents to test it in real browsers and produced 11 end-to-end tests.
Result (as claimed)
The site was checked in real browsers before shipping, not just compiled.
Tools they used
Cost: Pricing depends on the tools you pick; check each official pricing page.
Set it up
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.
Start the project with your agent
Open TestSprite and paste the brief. Ask it to propose a stack and a file plan before writing code.
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.
Test it like a user
Click through on desktop and phone. Ask the agent to add basic tests and fix anything that breaks.
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: Test a newsletter site in real browsers after the agent says it never ran it What the original author did: A coding agent built a newsletter site and admitted "I haven't seen it running in a browser yet". TestSprite deployed 3 AI agents to test it in real browsers and produced 11 end-to-end tests. Reported result (as claimed by the author): The site was checked in real browsers before shipping, not just compiled. Source: https://x.com/intheworldofai/status/2113269153159340307 Tools they used: TestSprite, AI coding agent 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.
You are helping me set up this AI use case end to end in Codex. Goal: Test a newsletter site in real browsers after the agent says it never ran it What the original author did: A coding agent built a newsletter site and admitted "I haven't seen it running in a browser yet". TestSprite deployed 3 AI agents to test it in real browsers and produced 11 end-to-end tests. Reported result (as claimed by the author): The site was checked in real browsers before shipping, not just compiled. Source: https://x.com/intheworldofai/status/2113269153159340307 Tools they used: TestSprite, AI coding agent 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.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Test a newsletter site in real browsers after the agent says it never ran it What the original author did: A coding agent built a newsletter site and admitted "I haven't seen it running in a browser yet". TestSprite deployed 3 AI agents to test it in real browsers and produced 11 end-to-end tests. Reported result (as claimed by the author): The site was checked in real browsers before shipping, not just compiled. Source: https://x.com/intheworldofai/status/2113269153159340307 Tools they used: TestSprite, AI coding agent 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 test your app with AI agents before you ship · How to run multiple coding agents together
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