A hand-drawn flowchart showing the Agent self-healing loop in browser-harness. Four steps connected by arrows in a cycle: Step 1 ‘Agent 尝试上传’ with an upload arrow icon, Step 2 ‘发现函数缺失’ with a magnifying glass/search icon showing ‘upload_file() not found’, Step 3 ‘Agent 编辑 helpers.py’ with a code editor icon, Step 4 ‘重新执行成功’ with a green checkmark icon. An arrow loops back from Step 4 to Step 1. Each step is in a rounded rectangle box. Title at top: ‘自修复循环’. Warm sketch notes style, cream colored paper, black hand-drawn lines, soft pastel color blocks for each step, numbered circles at each step.