Accurate trait gives flat bonuses, so they work right out of the box. Agile gives percentage bonuses. The problem is the bonus is a multiplier, so this racial trait does absolutely nothing unless and until you manage to research Jamming technology and mount some on your ship. Then it takes your 10% Jammer and makes it a 12.5% Jammer. Not exactly blowing the doors off in terms of wonderfulness.
Agile looks like this:
<RaceTrait>
<InternalName>Agile1</InternalName>
<DisplayName>Agile1_Name</DisplayName>
<Description>Agile1_Desc</Description>
<Mod>
<EffectType>Jamming</EffectType>
<Scope>Global</Scope>
<Target>
<TargetType>Ship</TargetType>
</Target>
<BonusType>Multiplier</BonusType>
<Value>0.25</Value>
</Mod>
</RaceTrait>
The fix looks like this:
<BonusType>Flat</BonusType>