MCP Memento

Instructions

Implementation Reference

• src/memento/tools/memory_tools.py:263-303 (handler)

  The handler function that executes the deletion of a memento in the database.

  async def handle_delete_memento(
      memory_db: SQLiteMemoryDatabase, arguments: Dict[str, Any]
  ) -> CallToolResult:
      """Handle delete_memory tool call.
  
      Args:
          memory_db: Database instance for memory operations
          arguments: Tool arguments from MCP call containing:
              - memory_id: ID of memory to delete
  
      Returns:
          CallToolResult with success message or error
      """
      memory_id = arguments["memory_id"]
  
      success = await memory_db.delete_memory(memory_id)
  
      if success:
          return CallToolResult(
              content=[
                  TextContent(
                      type="text", text=f"Memory deleted successfully: {memory_id}"
                  )
              ]
          )
      else:
          return CallToolResult(
              content=[
                  TextContent(
                      type="text",
                      text=f"Failed to delete memory (may not exist): {memory_id}",
                  )
              ],
              isError=True,
          )

• src/memento/tools/definitions.py:246-257 (schema)

  The MCP tool definition for delete_memento, including its description and input schema.

  Tool(
      name="delete_memento",
      description="Delete a memento and all its relationships",
      inputSchema={
          "type": "object",
          "properties": {
              "memory_id": {
                  "type": "string",
                  "description": "ID of the memory to delete",
              },
          },
          "required": ["memory_id"],

• src/memento/tools/registry.py:59-59 (registration)

  The mapping of the delete_memento tool name to its handler function in the registry.

  "delete_memento": handle_delete_memento,