- Use NETWORK_SIMPLEX placement for vertical centering of root flow nodes - Skip structural edges from all compound nodes to descendants (not just DO_TRY) - Reduce DO_TRY section spacing from NODE_SPACING*0.4 to fixed 20px - Use SVG clipPath for node text instead of character-count truncation Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>