Memento gives Claude Code a real memory: persistent, searchable knowledge that survives across every session, every project, and every device. Your AI remembers your codebase, your team conventions, past decisions, and the conversations you have had with it. Memory is searchable from natural language and editable on the web. The plugin adds nine commands (/wake-up, /recall, /remember, /sleep, /handoff, /pickup, /investigate-and-cache, /scan-environment, /frame), proactive memory skills, and session lifecycle hooks. Free to start. A Memento AGI tier adds 20 autonomous coding commands on top.