📋 Executive Summary
- The Scenario: A student hired me to set up an Agentic IDE (AI with shell access).
- The Risk: Agentic AI can delete files. I mandated a "Blast Shield" (Backup/Git) as a condition of use.
- The Failure: The client ignored the backup constraint. He prompted the AI to "clean up," and it wiped his current directory.
- The Lesson: Syncing is not backing up. You must have an offline/immutable checkpoint designated before granting AI write access.
The "Ferrari" Problem
When you use standard LLMs (ChatGPT, Claude), you are in a walled garden. You can't break anything because the AI can only output text.
Agentic IDEs (Cursor, Windsurf) are different. They have shell access. They can execute `rm -rf`, move directories, and rewrite files.
I call this the Ferrari Problem: You bought the speed, but did you buy the brakes?
The Explicit Warning
During a $300 consultation with a client ("Alex"), I gave one non-negotiable instruction before handing him the tools:
The Rule
"Install a Backup Protocol (Google Drive / Git). Not just Sync. A Backup."
I explained that Sync mirrors deletions. If the AI wipes his desktop, the cloud wipes the copy. He needed a dedicated checkpoint.
The Incident
24 hours later, the inevitable happened.
Alex likely asked the Agent to "clean up the folder" or "remove temp files." The AI, being literal, interpreted the scope broadly.
"I fked up."
The directory was empty.
The Engineering Lesson: Robustness
The tragedy here isn't the AI's mistake. It's the lack of System Resilience.
In software engineering, we assume failure will happen. We don't try to prevent every bug; we build systems that survive them.
Sync vs Backup
- Sync (Mirror): Live reflection. Good for convenience. Bad for safety. (AI deletes > Cloud deletes).
- Backup (Snapshot): Frozen state. Good for safety. (AI deletes > Restore from 1 hour ago).
Alex had Sync (maybe). He didn't have a Backup. When the mirror broke, he had no reflection left.
The Agentic Safety Baseline
If you are using AI tools that have write-access to your file system, you must adopt this baseline:
The 3-Step Blast Shield
- Git Init: Version control is the ultimate undo button.
git checkout .would have saved him in 1 second. - Remote Push: GitHub/GitLab ensures that even if your local drive melts, the code exists elsewhere.
- Checkpointing: Before any "Refactor" or "Clean" prompt, commit your changes.
The Cost of Wisdom
Alex paid $300 for the consultation. But the real cost was the lost week of work.
Domain expertise often sounds like "boring administrative advice" (Backups, Git, Security). In reality, it is the only thing standing between you and a total wipe.
When an expert tells you to install a safety net, don't ask if it's necessary. Just install the damn net.
📚 Related Reading
- Why the $200 Coder Broke Your App — More lessons on cheap vs robust engineering.
- Project Athena — How I use Agentic AI safely.
This article was originally published on Medium.
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