It would appear that Xcode in Mavericks now shows certain Scripting Bridge warnings in the console by default. I upgraded to Mavericks Friday, started a debug run of a SB-using project and this appeared out of nowhere:
2013-10-28 09:14:42.849 Ratchet[2387:303] warning: failed to get scripting definition from /Applications/Adobe Photoshop CC/Adobe Photoshop CC.app; it may not be scriptable.
2013-10-28 09:15:08.048 Ratchet[2387:303] warning: failed to get scripting definition from /Applications/Adobe InDesign CC/Adobe InDesign CC.app; it may not be scriptable.
This appears to be neither actionable or able to be disabled, so not much use during runtime. Not that it matters to me anymore anyway.