<cat>Hook</cat> <title>TOOL</title> <type name="TOOL" category="hook" is="class"> <type name="TOOL" category="hook" parent="Tool" is="class"> <summary> <note>This function or feature is only available in the Sandbox gamemode and its <page text="derivatives">Global.DeriveGamemode</page>.</note> A list of hooks (or callbacks) that are available for you to override in a tool. This is only applicable to sandbox and sandbox-derived gamemodes. See also: <page>Structures/TOOL</page> and <page>Tool</page>. </summary> </type>