Serein 上线：浏览器里的 agentic harness

Avid @Av1dlive原推发布于 2026.10.14

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i kept complaining to my grok bot about my browser... so it went off and built me one. @ziwenxu_ and i took it from there. now Serein is live. an AGENTIC HARNESS for your browser >chat with claude code or codex right inside it >let them control your tabs and do the work >use the tools already on your mac i>t's free. your browser is their workspace now. links in the comments check it out👇