just following a 1.21 pack tutorial but tick isnt working

[mighty laurel]

its ment to make you permenently have jump boost because its always refreshed because of tick, but it goes away after 1 second

[kind coral]

@s refers to the executing entity of a command. Running a function every tick by adding it to the tick function tag will not execute it as any entity.

[tawdry dew]

if you want permanent effects just give it with the infinite modifier, rather than giving people the effect for 1 second 20 times per second.

[mighty laurel]

isnt @s short for @self

and how do I add it to my datapack?

[tawdry dew]

Your player is not the server

Tick runs as the server

Put the command in a command block and you run as the command block. Not as yourself

@s is @self, but what self is depends on where the command is called from

this what we use the execute command for. It can change who/what or where in the world a command should execute.

https://minecraft.wiki/w/Commands/execute

[hollow gorge]

you have to use execute command and make server run in perspective of the client

also u can just apply infinite duration in load

and detect if this effect is cleared, if the player doesnt have this effect, reapply it.

[mighty laurel]

It's single player tho?

[kind coral]

Doesn't matter. Running a commands with a function inside of the tick tag will not run commands as any entity