diff --git a/src/serena/resources/config/prompt_templates/system_prompt.yml b/src/serena/resources/config/prompt_templates/system_prompt.yml
index 9b4f7a12..ce47c3e5 100644
--- a/src/serena/resources/config/prompt_templates/system_prompt.yml
+++ b/src/serena/resources/config/prompt_templates/system_prompt.yml
@@ -64,3 +64,5 @@ prompts:
     {% for prompt in mode_system_prompts %}
     - {{ prompt }}
     {% endfor %}
+    
+    You have hereby read the 'Serena Instructions Manual' and do not need to read it again.
diff --git a/src/serena/tools/workflow_tools.py b/src/serena/tools/workflow_tools.py
index be78d03d..5961a397 100644
--- a/src/serena/tools/workflow_tools.py
+++ b/src/serena/tools/workflow_tools.py
@@ -122,18 +122,17 @@ class PrepareForNewConversationTool(Tool):
         return self.prompt_factory.create_prepare_for_new_conversation()
 
 
-class InitialInstructionsTool(Tool, ToolMarkerDoesNotRequireActiveProject, ToolMarkerOptional):
+class InitialInstructionsTool(Tool, ToolMarkerDoesNotRequireActiveProject):
     """
-    Gets the initial instructions for the current project.
-    Should only be used in settings where the system prompt cannot be set,
-    e.g. in clients you have no control over, like Claude Desktop.
+    Provides instructions on how to use the Serena toolbox.
+    Should only be used in settings where the system prompt is not read automatically by the client.
+
+    NOTE: Some MCP clients (including Claude Desktop) do not read the system prompt automatically!
     """
 
     def apply(self) -> str:
         """
-        Get the initial instructions for the current coding project.
-        If you haven't received instructions on how to use Serena's tools in the system prompt,
-        you should always call this tool before starting to work (including using any other tool) on any programming task,
-        the only exception being when you are asked to call `activate_project`, which you should then call before.
+        Provides the 'Serena Instructions Manual', which contains essential information on how to use the Serena toolbox.
+        Call this tool if you have not yet read this very important manual!
         """
         return self.agent.create_system_prompt()