File System as Agent Core

In the OpenClaw architecture, the file system is not just storage, but the core of memory, knowledge, and capabilities: MEMORY.md (facts and preferences), dated logs, SOUL.md (identity), knowledge base files, Git for versioning and rollback. Markdown instead of a vector database is counterintuitive but more effective: the user can read and edit memory directly, chronology is naturally preserved, rollback via Git, and an agent with write_file can write knowledge itself. The file system survives breaks between messages (Sessionless): process state is serialized into workspace files.

Related: [Seven Basic Tools], Sessionless, [Filesystem Paradigm for Knowledge]