Whether the item exposes at least one melee strike mode.
Block and counterstrike are melee-defense tests — a missile mode carries no
block or counterstrike modifier — so an item with no melee mode (a bow, a
sling, a missile combat technique) can never run them, and those actions are
gated on this rather than offered as dead entries (#1137). The gate is "has at
least one melee mode", not "is melee-only": a mixed weapon (a spear that
thrusts and throws) keeps offering them, and the picker resolves the mode.
Whether the item exposes at least one melee strike mode.
Block and counterstrike are melee-defense tests — a missile mode carries no block or counterstrike modifier — so an item with no melee mode (a bow, a sling, a missile combat technique) can never run them, and those actions are gated on this rather than offered as dead entries (#1137). The gate is "has at least one melee mode", not "is melee-only": a mixed weapon (a spear that thrusts and throws) keeps offering them, and the picker resolves the mode.