{ "target_url_pattern": "/checkout", "trigger": { "type": "api_error", "condition_meta": "422_coupon_expired" }, "ui_mutations": [ { "element_selector": "div.coupon-wrapper", "action": "inject_html", "payload": { "content_html": "<div class='discount-alert'>⚠️ This coupon has expired, but we've applied an automatic 5% off code <strong>WELCOME5</strong> just for you!</div>", "attributes": {}, "css_override": { "border": "2px solid #ef4444", "background-color": "#fef2f2", "padding": "12px", "border-radius": "6px" }, "delay_ms": 200 } } ], "analytics_tracking": { "root_cause_analysis": "User got stuck after a 422 error from an expired coupon code, halting progress.", "severity_score": "high", "estimated_recovery_probability": 0.85 } }