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+# Action objects
 
+Trajectories objects will always contain a list of `Action objects`, which provide information about each action generated and executed by an agent, as well as all the information needed to replay these actions.
 
+![action chain](https://raw.githubusercontent.com/lavague-ai/LaVague/drafting-some-docs/docs/assets/actions.png)
+
+## Navigation actions
+
+In the case of web navigation, an agent will generate an action based on a pre-defined list of possible actions. The action is provided as a string following a JSON format with all the key-pair arguments needed to easily parse and perform navigation actions. 
+
+```json
+action:
+        args:
+            xpath: "/html/body/section/devsite-header/div/div[1]/div/div/div[2]/div[1]/devsite-tabs/nav/tab[2]/a"
+        name: "click"
+```
+
+Here is a list of the current possible actions an agent can perform and the arguments required for this action:
 
 | Name              | Arguments                                  | Description                                                                                                      | Engine             |
 |-------------------|--------------------------------------------|------------------------------------------------------------------------------------------------------------------|--------------------|
@@ -13,8 +29,5 @@
 | SCROLL_UP         | none                                       | Scrolls the browser window up.                                                                                   | NavigationControl  |
 | WAIT              | none                                       | Pauses the operation for a set duration (e.g., 5 seconds).                                                       | NavigationControl  |
 | BACK              | none                                       | Navigates back to the previous page.                                                                             | NavigationControl  |
-| SCAN              | none                                       | Placeholder action, does nothing (pass).                                                                         | NavigationControl  |
 | MAXIMIZE_WINDOW   | none                                       | Maximizes the browser window.                                                                                    | NavigationControl  |
-| SWITCH_TAB        | tab_id: number                             | Switches to a specific browser tab based on the tab_id provided.                                                 | NavigationControl  |
-
-
+| SWITCH_TAB        | tab_id: number                             | Switches to a specific browser tab based on the tab_id provided.                                                 | NavigationControl  |
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