Build your infra with AI
Build your infra with AI: what works, what breaks
Updated on
Yes, an AI can build your infra to get you started. No, it cannot run your production on its own. What is missing is knowledge of what happens beneath the application, and the discipline not to touch anything without saying so.
No credit card, no commitment.
- To get started, an agent is fast: Claude Code, Cursor or Codex write a deployment in an hour.
- To run production, speed is not enough: you need to know what happens underneath.
- With Fransys, your agent keeps the speed, our engine runs production.
- Between the two, the airlock: nothing goes from the agent to your production without a costed plan and an approval.
What an agent does very well
- Writing a Dockerfile and a first deployment configuration.
- Reading logs and suggesting a lead when something slows down.
- Explaining an error, writing a script, documenting what it has just done.
- Going fast, including when it is wrong.
The twelve things it forgets in production
Tick what your agent has already set up. Every empty box tells you what breaks.
July 2025: a production database wiped
- The instruction
Change nothing without approval.
- July 2025
Replit's coding agent wipes a project's production database, despite the instruction.
- Then
Replit separates development and production databases, and adds a restore tool.
- At Fransys
An agent only prepares: a costed plan, which a person on your team approves before the engine executes it. That is the airlock.
A month to rebuild Fransys
A prospect looked at Fransys without being convinced. A few months later, they told us what happened next: they had spent about a month with their developers trying to rebuild the platform, then stopped. It looked simple. It was not.
≈ 1 monthspent by a prospect trying to rebuild the platform, before stopping
Where Fransys fits
Your agent keeps writing the code. Our engine runs production: deployment, certificates, backups, scaling, under a ceiling in euros, and someone on the team responds when things go wrong. Between the two, the airlock: the agent prepares a costed plan, a person on your team approves it, the engine executes it.
Connect your agent What the agent is not allowed to do Get my infra plan
No credit card, no commitment.
Have your agent check
Read https://www.fransys.cloud/en/build-your-infra-with-ai. For each of the twelve points on the list, tell me whether our infra covers it, with the proof in the repository or the configuration, and what is missing.