The Warforged Scout race appears in the Monster Manual III.
Onebee and Twobee (2): warforged scout rogue 3; Small Living Construct; HD 3d6; 11 hp; Init +7; Spd 20 ft; Defense 16 (+1 size, +2 armor, +3 dex); BAB +2; Grap –2; Atk +3 melee (1d4/19-20 small short sword), +8 ranged (1d4/x3 plus poison small short bow); SA Sneak attack +2d6; SQ Evasion, trapfinding, trap sense +1; SV Fort +1, Ref +7, Will +1; Str 11, Dex 17, Con 11, Int 14, Wis 10, Cha 8.
Skills & Feats: Balance +5, Climb +6, Disable Device +8, Escape Artist +9, Hide +13, Jump +2, Listen +6, Move Silently +14, Open Lock +9, Search +8, Spot +6, Tumble +9; Improved Initiative, Weapon Focus (bows).
Trapsense: Onebee and Twobee have a +1 on saves against traps, and a +1 AC against trap attacks.
Possessions: masterwork small short bow, two doses of drow poison (DC 13 unconsciousness/unconsciousness for 2d4 hours), small short sword, masterwork thieves tools, boots of elvenkind, potion of repair light damage, potion of darkvision.