docs: add auto-approval configuration documentation

docs/docs/tools/improve.md

@@ -311,6 +311,44 @@ code_suggestions_self_review_text = "... (your text here) ..."
 
         To prevent unauthorized approvals, this configuration defaults to false, and cannot be altered through online comments; enabling requires a direct update to the configuration file and a commit to the repository. This ensures that utilizing the feature demands a deliberate documented decision by the repository owner.
 
+### Auto-approval
+
+Under specific conditions, Qodo Merge can auto-approve a PR when a specific comment is invoked, or when the PR meets certain criteria.
+
+To ensure safety, the auto-approval feature is disabled by default. To enable auto-approval, you need to actively set, in a pre-defined _configuration file_, the following:
+```toml
+[config]
+enable_auto_approval = true
+```
+Note that this specific flag cannot be set with a command line argument, only in the configuration file, committed to the repository.
+This ensures that enabling auto-approval is a deliberate decision by the repository owner.
+
+**(1) Auto-approval by commenting**
+
+After enabling, by commenting on a PR:
+```
+/review auto_approve
+```
+Qodo Merge will automatically approve the PR, and add a comment with the approval.
+
+**(2) Auto-approval when the PR meets certain criteria**
+
+There are two criteria that can be set for auto-approval:
+
+- **Review effort score**
+```toml
+[config]
+auto_approve_for_low_review_effort = X # X is a number between 1 to 5
+```
+When the [review effort score](https://www.qodo.ai/images/pr_agent/review3.png) is lower or equal to X, the PR will be auto-approved.
+
+___
+- **No code suggestions**
+```toml
+[config]
+auto_approve_for_no_suggestions = true
+```
+When no [code suggestion](https://www.qodo.ai/images/pr_agent/code_suggestions_as_comment_closed.png) were found for the PR, the PR will be auto-approved.
 
 ### How many code suggestions are generated?
 Qodo Merge uses a dynamic strategy to generate code suggestions based on the size of the pull request (PR). Here's how it works:

docs/docs/tools/review.md

@@ -114,16 +114,6 @@ You can enable\disable the `review` tool to add specific labels to the PR:
   </tr>
 </table>
 
-!!! example "Auto-approval"
-
-If enabled, the `review` tool can approve a PR when a specific comment, `/review auto_approve`, is invoked.
-
-<table>
-  <tr>
-    <td><b>enable_auto_approval</b></td>
-    <td>If set to true, the tool will approve the PR when invoked with the 'auto_approve' command. Default is false. This flag can be changed only from a configuration file.</td>
-  </tr>
-</table>
 
 ## Usage Tips
 
@@ -175,23 +165,6 @@ If enabled, the `review` tool can approve a PR when a specific comment, `/review
     Use triple quotes to write multi-line instructions. Use bullet points to make the instructions more readable.
 
 
-!!! tip "Auto-approval"
-
-    Qodo Merge can approve a PR when a specific comment is invoked.
-
-    To ensure safety, the auto-approval feature is disabled by default. To enable auto-approval, you need to actively set in a pre-defined configuration file the following:
-    ```
-    [pr_reviewer]
-    enable_auto_approval = true
-    ```
-    (this specific flag cannot be set with a command line argument, only in the configuration file, committed to the repository)
-
-
-    After enabling, by commenting on a PR:
-    ```
-    /review auto_approve
-    ```
-    Qodo Merge will automatically approve the PR, and add a comment with the approval.
 
 
 !!! tip  "Code suggestions"

pr_agent/settings/configuration.toml

@@ -48,6 +48,11 @@ ignore_pr_authors = [] # authors to ignore from PR agent when an PR is created
 #
 is_auto_command = false # will be auto-set to true if the command is triggered by an automation
 enable_ai_metadata = false # will enable adding ai metadata
+# auto approval 💎
+enable_auto_approval=false # Set to true to enable auto-approval of PRs under certain conditions
+auto_approve_for_low_review_effort=-1 # -1 to disable, [1-5] to set the threshold for auto-approval
+auto_approve_for_no_suggestions=false # If true, the PR will be auto-approved if there are no suggestions
+
 
 [pr_reviewer] # /review #
 # enable/disable features
@@ -70,9 +75,6 @@ minimal_commits_for_incremental_review=0
 minimal_minutes_for_incremental_review=0
 enable_intro_text=true
 enable_help_text=false # Determines whether to include help text in the PR review. Enabled by default.
-# auto approval
-enable_auto_approval=false
-
 
 [pr_description] # /describe #
 publish_labels=false