afv-library/skills/external-diagram-visual-generate/assets/erd/custom-objects.md

ERD Template: Custom Objects

Prompt Template

Professional Salesforce ERD diagram showing custom objects:

OBJECTS:
[List custom objects with relationships]

COLOR CODING:
- Standard Objects: Blue (#bae6fd fill, #0369a1 border)
- Custom Objects: Orange (#fed7aa fill, #c2410c border)
- External Objects: Green (#a7f3d0 fill, #047857 border)

RELATIONSHIPS:
- Lookup (LK): Dashed arrow, optional parent
- Master-Detail (MD): Solid thick arrow, cascade delete

STYLING:
- Clean white background
- Pastel fill colors with dark borders
- Relationship labels on arrows
- Professional diagram layout
- Include color legend

FORMAT:
- Auto-layout based on relationships
- Primary objects centered
- Child objects positioned below/right of parents

Example

# Draft at 1K (iterate here)
gemini --yolo "/generate 'Salesforce ERD for real estate app:
- Property__c (orange, center): Main custom object
- Listing__c (orange, right): Master-Detail to Property__c
- Showing__c (orange, below): Lookup to both Property__c and Contact

Orange boxes for custom objects, blue for standard (Contact).
Include legend. Professional style.'"
open ~/nanobanana-output/*.png  # Review and refine

# Final at 4K (when satisfied)
uv run scripts/generate_image.py \
  -p "Salesforce ERD for real estate app..." \
  -f "realestate-erd.png" \
  -r 4K

Resolution Guide

Phase	Resolution	Use Case
Draft	1K (CLI)	Quick iteration, prompt refinement
Final	4K (Python)	Documentation, presentations

Tip: Iterate at 1K until layout is correct, then generate 4K final.