Each recipe is orange until its yellow rank and grey from its grey rank. When the ranks differ, it turns green somewhere between the two; the client files give both ranks but not that point. Equal ranks go straight to grey.

Engineering: Pets and Guardians
RecipeMakesReagentsNeedsSkill-up
Mechanical SquirrelTaught by Schematic: Mechanical Squirrel, requires 75
Mechanical Squirrel Box
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 105Grey 135
Target Dummy
Target Dummy
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 115Grey 145
Advanced Target Dummy
Advanced Target Dummy
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 185Grey 225
Lil' SmokyTaught by Schematic: Lil' Smoky, requires 205
Lil' Smoky
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Grey 205
Pet BomblingTaught by Schematic: Pet Bombling, requires 205
Pet Bombling
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 205Grey 210
Mobile Alarm
Mobile Alarm
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 205Grey 245
Mechanical DragonlingTaught by Schematic: Mechanical Dragonling, requires 200
Mechanical Dragonling
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 220Grey 240
Mithril Mechanical DragonlingTaught by Schematic: Mithril Mechanical Dragonling, requires 250
Mithril Mechanical Dragonling
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 270Grey 290
Alarm-O-BotTaught by Schematic: Gnomish Alarm-O-Bot, requires 265
Gnomish Alarm-O-Bot
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 275Grey 285
Lifelike Mechanical ToadTaught by Schematic: Lifelike Mechanical Toad, requires 265
Lifelike Mechanical Toad
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 285Grey 305
Masterwork Target DummyTaught by Schematic: Masterwork Target Dummy, requires 275
Masterwork Target Dummy
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 295Grey 315
Arcanite DragonlingTaught by Schematic: Arcanite Dragonling, requires 300
Arcanite Dragonling
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 320Grey 340
Tranquil Mechanical Yeti
Tranquil Mechanical Yeti
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 320Grey 340

From the Forever beta client files, build 1.60.1.70630: the SkillLine, SkillLineAbility, TradeSkillCategory, SpellReagents, SpellEffect, SpellTotems, SpellCastingRequirements and ItemEffect tables.