Eagle
Eagle sneaks when you reach the edge of a block, so you can bridge without falling off.
Sneaking
Straight edge offset
How far over the edge you can walk before it sneaks, when bridging straight, in blocks.
Diagonal edge offset
The same when bridging diagonally.
Randomize offset
Varies the edge offset a little each time.
Unsneak delay
How long it keeps sneaking once you're back on the block.
Sneak on jump
Sneaks for this long when you jump while moving. 0ms turns it off.
Sneak with Speed
With a Speed effect, sneaks the whole time you bridge with blocks while looking down.
Conditions
Sneak key pressed
Only works while you hold sneak, and releases sneak whenever you're safe so you move faster.
Holding blocks
Only works while you hold blocks.
Looking down
Only works while you look down.
Not moving forward
Only works while you aren't moving forward.