261. miss spring 中
The cover photo was taken looking up at the spring sky. Spring in Hangzhou is truly beautiful. I kind of hope summer doesn’t come too quickly—weather like this is incredibly comfortable.
Recording down-to-earth trending tech seen every week, published here after filtering. If you find it useful, feel free to subscribe to this weekly newsletter for update notifications.
Wrote a Long Article
The Agent You Don’t Know: Principles, Architecture, and Engineering Practices
https://tw93.fun/en/2026-03-21/agent.html
After writing “The Claude Code You Don’t Know: Architecture, Governance, and Engineering Practices,” I realized my understanding of the underlying Agent mechanics wasn’t deep enough. Plus, our team has accumulated quite a bit of business implementation experience in the Agent direction, yet we’ve always lacked a systematic summary. So, I went through the materials, open-source implementations, and the code I wrote myself again, ultimately organizing it all into this article.

Product Updates
Mole Released Version 1.31
https://github.com/tw93/mole
Mole released version v1.31.0 over the weekend, codenamed Makima. It features faster performance and more accurate system status reporting. Huge thanks to all the contributors! I also made a video so everyone can feel the power of open source.
Trending Tools
Get Inspired by These Projects Built with Claude
https://claude.com/resources/use-cases
Definitely worth a look. It covers various use cases in daily work, from research, writing, programming, to analysis. The content is much more in-depth than I expected.

Highly Recommend This Service from Jina in the Agent Era
https://r.jina.ai
Sometimes you need an AI to read the content of a live website, but often it can’t fetch it due to various reasons. You can try this service: just append the URL you need to fetch after it, and it will convert it into nicely formatted markdown for you, making it super convenient for AI to use.

Pi, This Minimalist Agent Framework, is Worth Getting to Know
https://github.com/badlogic/pi-mono
It’s very small. The openclaw project was previously implemented based on this framework. It serves as a great entry point for understanding Agents.

Random Thoughts
Try Buying Pre-made Ice Cubes This Summer
I had been debating whether to buy an ice maker, but since I’m the only one at home who likes drinking ice water, I felt the usage rate would be low and it would just take up space. Freezing ice cubes myself was also inconvenient—I’d usually realize I forgot to make them right when I wanted a drink. I found a great solution: just buy some pre-made ice cubes and keep them in the freezer. When you need them, just take them out. You can even use them directly to make Americanos in the summer. The cost-effectiveness is super high.
Got a Singapore HSBC Card
If you already have HSBC accounts in mainland China and Hong Kong, you can ask your relationship manager to help you apply for a Singapore one. Although it kind of feels like a supermarket loyalty card. The registered mail didn’t arrive for three months; after a phone call, they remade it and it arrived via express delivery in a week.
