Cannot disable all applications

[eric-j-ason]

• YubiKey Manager (ykman) version: 5.5.1
• How was it installed?: MacPorts (sudo port install yubikey-manager)
• Operating system and version: macOS 15.0.1
• YubiKey model and version: YubiKey 5C NFC (5.4.3)
• Bug description summary: Cannot disable all applications.

Steps to reproduce

ykman config usb --disable=otp --disable=u2f --disable=fido2 --disable=oath --disable=piv --disable=openpgp --disable=hsmauth

Expected result

USB configuration changes:
  Disable Yubico OTP, FIDO U2F, OpenPGP, PIV, OATH, YubiHSM Auth, FIDO2
  The YubiKey will reboot
Proceed? [y/N]:

Actual results and logs

ERROR: Can not disable all applications over USB.

Other info

This is the piece of code that forbids all applications from being disabled:

yubikey-manager/ykman/_cli/config.py

Lines 285 to 287 in 84e340e

	if transport == TRANSPORT.USB:
	if sum(CAPABILITY) & new_enabled == 0:
	raise CliFail(f"Can not disable all applications over {transport}.")

I might be missing something, but I haven't been able to figure out why this should be forbidden. What would happen if I removed the check?

My goal is to reset YubiKeys fully and then enable precisely the things I want.