Add new word before an org-agenda entry (like "MODIFIED")

[Cletip Cletip <clement020302@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1180 bytes --]

Hello, everyone! I have a question that may be complex to answer. I
apologize in advance for my limited vocabulary; I will use an example to
elucidate my question better.

Objective: I wish to track when a heading is modified using org-agenda. To
achieve this, I automatically insert an inactive timestamp in the LOGBOOK
drawer whenever a note is modified. However, how can I display the item in
org-agenda with the prefix "MODIFIED:" or another indicator before the
heading to show that I made a modification ?

Here's an example for clarification:
Consider this line in org-agenda:

14:08-14:10 Clocked: (0:02) name-of-the-heading

I want exactly the same thing, but not with the "Clocked" word !

Another example : I would like this entry/heading/item :

** An example
:PROPERTIES:
:CREATED: [2023-09-29 Fri 23:07]
:END:
:LOGBOOK:
MODIFIED: [2023-10-01 Sun 14:09]--[2023-10-01 Sun 14:35]
CLOCK: [2023-09-30 Sat 23:19]--[2023-09-30 Sat 23:25] => 0:06
MODIFIED: [2023-09-30 Sat 14:08]--[2023-09-30 Sat 14:20]
:END:

with the word "MODIFIED:" precede the entry in the org-agenda.

Is this feasible? Can you suggest alternative methods?

Thanks in advance for your futur answer :)

[-- Attachment #2: Type: text/html, Size: 1350 bytes --]