CowAgent

CowAgent is an open-source assistant and agent harness: it plans tasks, runs tools and skills, keeps long-term memory and accumulated knowledge, and works across several models and messaging channels. It installs with one command, runs as a desktop application or on a server, and describes itself as having grown out of an earlier, narrower project of the same lineage.

Its shape is the popular one for self-hosted assistants now — a single agent that is the same entity whether you reach it from a desktop window, a chat platform or a terminal, with memory that persists across all of them. That continuity is the actual feature; the individual capabilities are commodity. The thing to weigh is that persistent memory accumulated from daily use is exactly the data you would least like to leak or lose, and self-hosting moves that responsibility to you rather than removing it: backups, access control and the question of what happens on a machine you no longer control all become yours.