Devin begins daily "dreaming": automatically organizes long-term memory, with the solution now open-sourced.

Beating AI Express News: AI programming firm Cognition has rolled out Memory and Dreaming features for its AI coding agent Devin. Memory enables Devin to retain user preferences, corrections, and project experience across sessions, while Dreaming automatically reorganizes these memories in the background daily. Users can directly view what Devin has memorized, as well as recent modifications made by Dreaming. These memories are stored in a personal Memory Drive, essentially a persistent Git repository, with content organized primarily in Markdown files. A short MEMORY.md file serves as an entry point and index, loaded into the context at the start of each new session. Devin then searches for relevant memory files based on the current task, similar to how it queries code repositories, eliminating the need to feed the entire memory bank into prompts. Multiple Devin sessions can read and write to the same memory set simultaneously. Each session has its own Git checkout; after modifying memories, changes are committed and merged back into the Memory Drive. In case of concurrent edits, Git flags conflicts, preventing sessions from overwriting each other’s work. Dreaming itself is a background session that runs automatically daily. It reviews past conversations and existing memories, merges duplicate content, deletes temporary or long-unused information, and fills in previously unrecorded experience. Cognition has also open-sourced this framework as the Agent Memory Repo. Other agents like Claude Code and Cursor can similarly store long-term memories as files and manage them via Git. However, the open-source version only provides the memory structure and workflow; features like Devin’s daily automatic Dreaming run require additional configuration.