Sentinel handler for an open action-card button — one addressed to no
specific document but to "whoever responds." At click time it resolves to the
clicking user's default character (game.user.character), which the player
inherently owns; the action then self-gates. Used as a button's handler uuid.
Sentinel handler for an open action-card button — one addressed to no specific document but to "whoever responds." At click time it resolves to the clicking user's default character (
game.user.character), which the player inherently owns; the action then self-gates. Used as a button's handler uuid.