diff --git a/pr_agent/servers/github_action_runner.py b/pr_agent/servers/github_action_runner.py
index 953b0b8f..49e58220 100644
--- a/pr_agent/servers/github_action_runner.py
+++ b/pr_agent/servers/github_action_runner.py
@@ -1,8 +1,11 @@
 import asyncio
 import json
 import os
+import re
 
 from pr_agent.config_loader import settings
+from pr_agent.tools.pr_code_suggestions import PRCodeSuggestions
+from pr_agent.tools.pr_description import PRDescription
 from pr_agent.tools.pr_questions import PRQuestions
 from pr_agent.tools.pr_reviewer import PRReviewer
 
@@ -48,10 +51,19 @@ async def run_action():
             if comment_body:
                 pr_url = event_payload.get("issue", {}).get("pull_request", {}).get("url", None)
                 if pr_url:
-                    if comment_body.strip().lower() == "review":
+                    body = comment_body.strip().lower()
+                    if any(cmd in body for cmd in ["/review", "/review_pr"]):
                         await PRReviewer(pr_url).review()
-                    elif comment_body.lstrip().lower().startswith("answer"):
-                        await PRQuestions(pr_url, comment_body).answer()
+                    elif any(cmd in body for cmd in ["/describe", "/describe_pr"]):
+                        await PRDescription(pr_url).describe()
+                    elif any(cmd in body for cmd in ["/improve", "/improve_code"]):
+                        await PRCodeSuggestions(pr_url).suggest()
+                    elif any(cmd in body for cmd in ["/ask", "/ask_question"]):
+                        pattern = r'(/ask|/ask_question)\s*(.*)'
+                        matches = re.findall(pattern, comment_body, re.IGNORECASE)
+                        if matches:
+                            question = matches[0][1]
+                            await PRQuestions(pr_url, question).answer()
 
 
 if __name__ == '__main__':
diff --git a/pr_agent/tools/pr_reviewer.py b/pr_agent/tools/pr_reviewer.py
index e6d001e1..109a9b74 100644
--- a/pr_agent/tools/pr_reviewer.py
+++ b/pr_agent/tools/pr_reviewer.py
@@ -96,15 +96,18 @@ class PRReviewer:
 
         if not self.cli_mode:
             markdown_text += "\n### How to use\n"
+            commands_text = "> /review or /review_pr - Ask for a new review after your update the PR\n" \
+                            "> /describe or /describe_pr - Modify the PR title and description based " \
+                            "on the PR's contents.\n" \
+                            "> /improve or /improve_code - Suggest improvements to the code in the PR as pull " \
+                            "request comments ready to commit.\n" \
+                            "> /ask /ask_question <QUESTION> - Ask a question about the PR.\n"
             if user and '[bot]' not in user:
-                markdown_text += f"> Tag me in a comment '@{user}' to ask for a new review after you update the PR.\n"
-                markdown_text += "> You can also tag me and ask any question, " \
-                                 f"for example '@{user} is the PR ready for merge?'"
+                markdown_text += f"> Tag me in a comment '@{user}' and add one of the following commands:\n" + \
+                                 commands_text
             else:
-                markdown_text += "> Add a comment that says 'review' to ask for a new review " \
-                                 "after you update the PR.\n"
-                markdown_text += "> You can also add a comment that says 'answer QUESTION', " \
-                                 "for example 'answer is the PR ready for merge?'"
+                markdown_text += "> Add a comment to to invoke PR-Agent, use one of the following commands:\n" + \
+                                 commands_text
 
         if settings.config.verbosity_level >= 2:
             logging.info(f"Markdown response:\n{markdown_text}")