写作

How AI Changes SaaS Pricing

Traditional seat-based models break down when intelligence becomes the product. Here's what's replacing them.

Consumption Billing is Eating SaaS

Usage-based models aren't new, but AI workloads are accelerating the shift from subscriptions to consumption.

Building Better Monetization Systems

Lessons from building billing infrastructure at enterprise scale — charge models, rating, and observability.

Designing Pricing for Agents

Agent-native products need agent-native pricing. Per-task, per-outcome, and hybrid models for autonomous software.

Prompt 工程入门

角色设定、参数调优，以及设计有效 LLM 提示词的基本要素。

徒步路线强度计算工具

为什么做一个工具，把各俱乐部和社交媒体里互不兼容的难度公式统一起来。

优秀工程师如何寻求帮助

升级前的自查清单，以及如何用建立信任的方式提问，而不是传递「我搞不定」。

如何快速了解一个新代码库

分阶段推进：先画系统地图，知道东西在哪，再下潜到代码。