When an ally within 60 feet must succeed at a Reflex save to avoid a harmful effect, as a reaction before your ally attempts the saving throw, you can grant the ally a +2 bonus to that saving throw.

At 6th level, you can spend 1 Resolve Point to have the ally roll twice on the saving throw and take the better result. Both of those rolls benefit from the +2 bonus provided by this ability.

You are an expert at dealing with challenges that test your skills, be the challenges social or otherwise. At 1st level, when attempting a Sense Motive check, you can roll 1d6 (your expertise die) and add the result of the roll to your check as an insight bonus. You can use this and other expertise abilities as long as you have at least 1 Resolve Point remaining. At 5th level, anytime you roll your expertise die, you gain a +1 bonus to the result. At 9th, 17th, and 20th levels, this bonus increases by 1. At 13th level, you roll 1d8 as your expertise die instead of 1d6.

Beginning at 9th level, you have even greater expertise with skills to which you can add your expertise die that you have also selected with the Skill Focus feat. For each such skill, once per day when rolling your expertise die to add to that skill, you may roll the expertise die twice and take the better of the two results.

At 1st level and every 4 levels thereafter, you can use expertise with one additional class skill. You must have at least 1 rank in a skill to select it, and it must come from the following list: Bluff (Cha), Computers (Int), Culture (Int), Diplomacy (Cha), Disguise (Cha), Engineering (Int), Intimidate (Cha), and Medicine (Int).

Select one technological item from Chapter 7: Equipment of no more than light bulk and an item level no higher than your mechanic level. Your drone is equipped with a robotic arm with that item attached and the proper programming to use the item, although it cannot use a tool that requires skill checks unless it also has ranks in the relevant skill (or you have ranks in the relevant skill and the drone is under your direct control).

Your drone’s land speed increases by 10 feet.

Your drone gains resistance to an energy type of your choice— acid, cold, electricity, fire, or sonic—equal to your mechanic level, to a maximum of 10. You can select this mod multiple times. Its effects do not stack; each time you select this mod, it must apply to a different energy type from the list above.

Your drone gains low-light vision, darkvision to 60 feet, and a +2 insight bonus to Perception skill checks. If your drone has the camera mod, the camera gains these senses as well.

Your drone gains a climb speed equal to half its land speed. This mod can be applied to only combat and stealth drones.

Your drone is equipped with a robotic arm to which you can affix a one-handed melee weapon, allowing your drone to wield that weapon and attack with it. This weapon cannot be disarmed. Wielding a two-handed melee weapon requires two melee weapon arms. If you do not already have a weapon to equip, you must purchase it separately. Swapping out a weapon in a melee weapon arm requires use of your custom rig and 1 hour of work. You can select this mod multiple times, each time adding an additional melee weapon arm to the drone.

Your drone is equipped with powerful miniature jets. It can use these jets to jump up to 30 feet as a move action (either vertically, horizontally, or in any combination that does not exceed 30 feet). If applied to a hover drone, these jets instead allow your drone to increase its fly speed by 30 feet for 1 round. Once used, these jets must cool down for 1 minute before they can be used again.