Education and Study · Tabnews · 🇧🇷 Brazil
Build an app to study for the driver's license theory exam (CNH)
A developer used AI agents to build a study app for the Detran driving test.
- Tools
- Agente de IA
- Source
- tabnews.com.br ↗
- Country
- 🇧🇷 Brazil
- Report date
- June 28, 2026
- Verified on
- October 24, 2026
What they did
Built a practice-test and study app for the CNH theory exam.
How it went
It took about 3 months to reach the version presented; the author says the agents sped things up a lot.
Good to know
Check the questions against the official Detran/Contran material; AI gets traffic law wrong.
The prompt
Create 10 multiple-choice questions on [topic from the CNH theory exam], with 4 options each, an answer key, and a short explanation citing the relevant article of the CTB (Brazilian Traffic Code). Flag the ones I should verify against the official source.
Replace what is in [brackets]. Prompt written by us from the account, not a literal copy of the source. Do not paste other people’s personal data (privacy laws such as LGPD and GDPR apply).
Summary in our own words. Results as stated in the original account; we have not tested or audited them. Read the source ↗ Found a mistake?
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