About

Hi, I’m Ziwen Song, cofounder of AirJelly. 👋

I’m building context-aware AI that remembers your work and acts before you ask. AirJelly keeps work memory on your machine and connects context across apps.

One belief connects everything I build: memory is the foundation of useful AI. Without it, agents start from zero and proactivity becomes guesswork.

A few things about me

• 🪼 Currently building AirJelly, a proactive agent that keeps work memory on your machine and connects context across apps.
• 🧠 Exploring AI memory, context engineering, and agents that understand work as it unfolds.
• ✍️ Writing about the systems and ideas behind useful AI.
• 🧑‍💻 Previously at ByteDance, RedNote, and Meituan.
• 🤝 Always open to thoughtful conversations about AI agents, products, and building a startup.

Stay connected

If you’d like to talk about AI agents, products, or building a startup, feel free to send me an email, follow me on GitHub, or find me on X and LinkedIn.