Persistent memory.

This is what people actually mean when they talk about AI with memory. There's no magic feature built into the model. It's the AI agent keeping notes to itself, your preferences, the fixes, the patterns it learns, written out as plain Markdown files sitting on your disk.

So when you come back the next day, it picks up where you left off instead of starting from scratch.

The part I like is that it's transparent and local. You can open the file and read exactly what it remembered, unlike ChatGPT's cloud memory where you have no idea what it stored. Tell your agent to write corrections back to a MEMORY file and it stops repeating the same mistakes. That's the whole thing. A well-structured folder of files, not a model feature.