Know which version works.
Prompts are like code: small edits change behaviour. Track them the same way, even if it's just a line in a doc.
Number it
Habit 01
Every shared prompt carries a version.
EXAMPLE
v1.2
Log the change
Habit 02
What changed and why, in one line.
EXAMPLE
“Added customer impact line.”
Keep the old one
Habit 03
So you can roll back when an edit backfires.
EXAMPLE
v1.1 archived, not deleted.
Note the model
Habit 04
The same prompt can behave differently on another model.
EXAMPLE
“Tested on [MODEL], Sept.”
Number it. Log it. Keep the last one.