Portrait AI Anonymous poster on textured ivory paper. Large black headline: Valid JSON can still be wrong. A black metal inspection gate holds a copper template with curly braces and required-field marks. Cream JSON cards sit at the gate and beside a copper CHECK stamp. Below: Check the handoff before the next tool. JSON SCHEMA / PRACTICAL GUIDE. Footer: by JABSystems and jabsystems.io/ai-anonymous. Original AI-generated conceptual artwork, not a software screenshot or proof of factual accuracy.