A visual feedback loop connects generation with observation. After producing an interface, image or scene, the system captures the result, compares visible features with the goal and makes another change based on detected differences.
The loop can improve spacing, composition and reference matching that source code alone does not reveal. It is not a guarantee of correctness because the model may overlook subtle defects, misread the reference or optimize appearance while leaving behavior broken.
ELI5
A visual feedback loop lets an AI system look at what it produced and use that view to improve the next version. The system creates something, inspects the rendered result, notices differences from the goal, and revises it.
For example, an AI coding tool might build a page, take a screenshot, notice that a card is too wide, and adjust the layout. A screenshot cannot prove that buttons work or content is correct, so behavior still needs separate testing.
Why does visual feedback help a coding agent?
It lets the agent observe the rendered result, identify visible mismatches and revise code using evidence that is unavailable from source text alone.
Can visual feedback replace software testing?
No. It can reveal appearance problems, but functional tests, accessibility checks and code review are still needed for behavior that cannot be verified visually.

