// Store a memory
memory_store('user_name', 'Alice')
// Returns: "Stored: user_name"

// Recall a memory
memory_recall('user')
// Returns: {"user_name": "Alice"}

// Search by value
memory_recall('Alice')
// Returns: {"user_name": "Alice"}

// Delete a memory
memory_delete('user_name')
// Returns: "Deleted: user_name"

// List all memories
memory_list()
// Returns: ["user_name", "favorite_color", ...]

// Clear all memories
memory_clear()
// Returns: "Cleared all memories"