Usage patterns
〈事〉は行き過ぎだ~ is going too far
I think that remark went too far.
行き過ぎた〈事〉an excessive ~ / a ~ that went too far
The excessive regulations were criticized.
〈事〉が行き過ぎにならないようにするto make sure ~ doesn't go too far
I was careful that my guidance didn't go too far.