org-make-link-description-function

org-make-link-description-function is a variable defined in `org.el'.
Its value is

nil

• This variable may be risky if used as a file-local variable.

Documentation:
Function to use for generating link descriptions from links.
When nil, the link location will be used. This function must take
two parameters: the first one is the link, the second one is the
description generated by `org-insert-link'. The function should
return the description to use.

You can customize this variable.