Why don't need memory, they need documentation

This article misses the most crucial point. Developers don't "use the platform" when it results in a strictly worse end result. Agents need BOTH documentation and multiple "memory" systems that also point to your docs and source. There are a lot of services are suddenly adding them. Huh, wonder what changed? The author seemed to be a weirdly shaped API too: I don't really hate it, but I don't trust his judgement on things that affect human lives.