Yes, that looks very good. It's interesting that I have to study each iteration of your diagram to think of corrections. It shows that I've never thought very hard about MC in terms of a flow chart.
If I could suggest a few more tweaks to make it perfect:
1. In the "Edit Config File" box, add 'Specify the objects you need' at the beginning.
2. Move the dashed arrow at the lower left above Lexicon Helper, which is generally the last thing you want to do before the build (and your resolver might use the lexicon).
3. In the box on custom DB files, change recreate to create.
4. Also in that box, change "write the resolver" to "write the resolver code" (since MC will create a resolver for you).
5. Title the two middle boxes: "File System" and "MODX Manager/DB"
6. Add "classes" to the list in the left-hand box.
7. Move the section "and your CSS, JS ... " to the left-hand box, since they belong in the File System section.
8. Capitalize CSS and JS.
9. Change the arrow coming out of "Import Objects" to point to the "MODX Manager/DB" box. (since you're really importing the objects into the Manager/DB and exporting them from there).
10. Remove the phrase "and they will work immediately .. " from the left-hand box, since it's not necessarily true there.
I really appreciate your creating the diagram. Is it OK if I use the finished version in the docs (and if so, what format is the file in)?