Autobuild allows your character to automatically build, deconstruct, and upgrade nearby ghosts. A more efficient alternative to mods like Bluebuild.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
After the recent Factorio update which added or changed sound effects for a ton of things, Autobuild no longer plays a sound effect when an entity marked for replacement by the Upgrade Planner is upgrade-replaced.