Technical GuideApr 22, 20263 min read16Yun Engineering Team The dashboard was all green — 99.9% HTTP 200 rate, 200ms P95 latency, zero 5xx errors. But the agent had looped on the same page 10 times, extracting nothing. Traditional monitoring couldn't see this.
Technical GuideApr 20, 20262 min read16Yun Engineering Team Agent ran 50 steps in the browser, errored somewhere in the middle, and you only see the final error. No action trace, no DOM replay, no decision chain.
Technical GuideJul 30, 202412 min read16Yun Engineering Team Proactive monitoring vs reactive reporting: how observability systems took proxy stability to the next level in 2024.