UC Summoner with non-combat Eidolon

[kuey]

I've been thinking of building an UC summoner, where the eidolon is primarily for non-combat roles, e.g. scouting, disabling device, maybe even social stuff. In combat, the summoner would primarily use summon monster, with other spells for support. I'm toying with this idea because I already have two characters with animal companions, but I also like the idea of summoning - pulling out the most useful creature for each particular encounter. (My occultist once kept the party alive by repeatedly summoning ponies to soak up damage and provide flank.)

Which eidolon subtype do you think work best?

Archons have nice resistance to poisons (when disabling traps fail), and flexibility (to put the evolution pt at level 4 into skills, and ability increase at level 8 into Dex or Int).

Azata has serpentine form (best starting Dex) with arms (for actual disabling of device).

Daemon and Demon have serpentine form but no arms. Resistance to poison is useful, and so is the 8th level additional evolution point.

Devil has good social skills (Bluff, Diplomacy) and resistance to poison (eventually immunity).

Air elementals eventually get flight!

Anyway, the idea also seems kind of dumb, in that much of an eidolon's abilities are geared towards combat. Pre-UC, the greater flexibility would have made a skill monkey more feasible. What do you think?

[Rosc]

A small sized Serpentine Azata is your best scout/skillmonkey by far. You have the Dex, you have the free Climb speed, and unlike every other serpent, you have free Arms to sav the evo points. Because of the value of having arms, other subtypes are best off starting as Biped to get the evolution for free, meaning less Dex.

Elementals can be pretty good. Both Air and Earth offer interesting methods of movement that give them an edge over mundane scouts.

Each subtype (save for Protean) is good enough, honestly. Even without the slight advantages, you still have access to the staggeringly powerful Skilled evolution. Even a medium biped can start with +13 to Stealth checks because of it. And Unchained leaves you with fewer Evo points, which really hurts the combat Eidolons, but you can easily get by on the leaner budget. Tremorsense is also pretty good once you're Skilled in the skills that matter and you've got your 3d movement method of choice.

[andreww]

I have something similar. I went for Azata with a bipedal form initially as I used the eidolon in combat in the early days and having access to all martial weapons is helpful. Now at level 9 she is primarily a scouting, trap disabling machine. Most of her evolutions are the Skilled evolution and she is only brought out as and when needed.