Memento Protocol

This gives Claude a semantic memory layer that persists across conversations. Instead of dumping everything into context or losing it between sessions, you get operations to store information with meaning attached and recall it later through semantic search rather than exact keywords. Reach for this when you're building agents that need to remember user preferences, accumulate knowledge over time, or maintain context that would otherwise blow up your token budget. The stdio transport makes it straightforward to drop into any Claude desktop or API workflow where you need memory that sticks around and stays searchable by intent rather than exact phrasing.