... weregamer, you said it in much better English than me, thank you ...
Ah!!... Alpha Centauri, it would be so nice to have it starting right after the Space Victory...
Adding also options to workers like:
"cut only jungle" :for keeping forests and removing unhealthy jungle
"stop automation after X turns" :among other thing: for avoiding, as I had already, workers to create a 96 square road ... just for going on a point that is on the other side of a little bay but blocked by mountains/closed borders
"Production first" / "Food first" / "Trade first" : for specializing more a worker. In this case, improved squares are off-limit to other automated workers (for not having a loop between 2 workers trying to improve differently the same square)
"Off limit" : the player manually select a square and flag it, automated workers can do nothing on this square until the flag is removed.
"Straighest way": regardless of number of turns for creating it, the worker will build the shortest junctions roads.
"Terraforming" : Ah.... Alpha Centauri ... : very very long special task, if 1 settler or more is placed along a mountain, or a 1 square only water tile, convert in hill or in (flood) plain. (only available at industrial age?)
I am sure I forgot some ...
I am a "builder", not a warlord, and workers are my boys...