Begin with the decision
“Analyze this screenshot” is too vague. Ask “Which checkout error appears in this screenshot, what text proves it, and what should an operator check next?” A specific question tells the model what to inspect and gives the reviewer something concrete to verify.
Separate what is seen from what it means
- Observation: the image contains a red error banner.
- Transcription: the banner says a payment was declined.
- Interpretation: the checkout may be failing at authorization.
- Action: check the payment provider logs before changing the product flow.
Add a human checkpoint
Visual models can miss small text, infer the wrong relationship, or mistake a screenshot for a complete system state. Keep the original image, extracted evidence, model output, and final decision together so errors can be corrected rather than silently absorbed into a report.