Oh, the message keeps popping up every time I take an item out of my inventory, can someone help me?

In version 2025.1, it was impossible to change the item attributes, so a function was used to set the abilities when the item was picked up, but when the player's abilities were changed in this way, a command execution message was continuously output.

commandBlockOutput Changing the game rules doesn't work, and is currently delaying the development of a mod to play with friends.

Please tell me how to modify an item's Attribute without using complex Java code (I can't seem to find it) or how to remove output messages from a function in version 2025.1 (or any other Minecraft version that supports 1.21.1).