Know what your
change reaches.
Two views in the Vedion IDE show what a change touches and who will notice it.
System map
Your repository as blocks. The ones you changed light up, and so does everything that uses them.

It spreads the way the code does.
Imports and package dependencies carry a change from block to block, one step or several.
Open any block.
Go inside to its folders and files, and step back out the way you came.
See the impact of your change.
As you edit, the map marks the blocks you changed and every block that feels it.
Reach
Every screen, endpoint, table and outside service a change gets to, nearest first.

The path, step by step.
See how the change gets from the file you edited to the screen someone uses.
Tested, or checked by hand.
Each touchpoint says whether a test reaches it, so nothing is assumed covered.
Journeys.
Name the steps people take, and see which of them a change touches.