The built-in tools

Registered by the editor on connect. A consumer adds its own with Tools and commands and they appear in the palette beside these — the same open-for-extension property the feature registry has.

Selecting is NOT here. It fused with the manipulator — see The select-and-transform tool — because selecting and transforming are one gesture with two outcomes, told apart by whether you grabbed a handle. A separate select tool meant declaring your intent to a palette before declaring it again to the thing you were pointing at.