If Sky Seal Stone is attached to my Active Pokemon V, can I use its "Star Order" Ability if my opponent's Active Pokemon has Tool Jammer attached?
No, you cannot
Source: TPCi Rules Team (2023-01-26)

Relevant cards

Note: All applicable cards may not be listed below.
SWSH125_143
SWSH125_143
SWSH5_136
SWSH5_136