diff --git a/pr_agent/servers/help.py b/pr_agent/servers/help.py
index d1ece194..60ba285b 100644
--- a/pr_agent/servers/help.py
+++ b/pr_agent/servers/help.py
@@ -156,6 +156,7 @@ Note that when markers are enabled, if the original PR description does not cont
 """
         output += "\n\n</details></td></tr>\n\n"
 
+        # custom labels
         output += "<tr><td><details> <summary><strong> Custom labels </strong></summary><hr>\n\n"
         output += """\
 The default labels of the `describe` tool are quite generic: [`Bug fix`, `Tests`, `Enhancement`, `Documentation`, `Other`].
@@ -174,6 +175,25 @@ Make sure to provide proper title, and a detailed and well-phrased description f
 """
         output += "\n\n</details></td></tr>\n\n"
 
+        # extra instructions
+        output += "<tr><td><details> <summary><strong> Utilizing extra instructions</strong></summary><hr>\n\n"
+        output += '''\
+        The `describe` tool can be configured with extra instructions, which can be used to guide the model to a produce a description with the relevant content or style.
+
+        Be specific, clear, and concise in the instructions. With extra instructions, you are the prompter. Notice that the general structure of the description is already defined by the tool, and cannot be changed.
+        What you can change is the content content or style of each sub-section of the description.
+
+        Examples for extra instructions:
+        ```
+        [pr_description] 
+        extra_instructions="""
+        - the title section should be in the following format: <PR type>: <PR summary>
+        - ...
+        """
+        ```
+        Use triple quotes to write multi-line instructions. Use bullet points to make the instructions more readable.
+                '''
+
         # general
         output += "\n\n<tr><td><details> <summary><strong> More PR-Agent commands</strong></summary><hr> \n\n"
         output += HelpMessage.get_general_bot_help_text()
diff --git a/pr_agent/settings/pr_code_suggestions_prompts.toml b/pr_agent/settings/pr_code_suggestions_prompts.toml
index 418212b3..c1847931 100644
--- a/pr_agent/settings/pr_code_suggestions_prompts.toml
+++ b/pr_agent/settings/pr_code_suggestions_prompts.toml
@@ -39,6 +39,9 @@ Specific instructions:
 - Provide the exact line numbers range (inclusive) for each suggestion.
 - Assume there is additional relevant code, that is not included in the diff.
 - When quoting variables or names from the code, use backticks (`) instead of single quote (').
+{%- if summarize_mode %}
+- If needed, use abbreviations for the 'existing code' and 'improved code' snippets, to keep the output short.
+{%- endif %}
 
 
 {%- if extra_instructions %}
diff --git a/pr_agent/tools/pr_code_suggestions.py b/pr_agent/tools/pr_code_suggestions.py
index 776b660f..b4f7a973 100644
--- a/pr_agent/tools/pr_code_suggestions.py
+++ b/pr_agent/tools/pr_code_suggestions.py
@@ -45,6 +45,7 @@ class PRCodeSuggestions:
             "language": self.main_language,
             "diff": "",  # empty diff for initial calculation
             "num_code_suggestions": num_code_suggestions,
+            "summarize_mode": get_settings().pr_code_suggestions.summarize,
             "extra_instructions": get_settings().pr_code_suggestions.extra_instructions,
             "commit_messages_str": self.git_provider.get_commit_messages(),
         }