diff --git a/CLAUDE.md b/CLAUDE.md
index e52a28c..58dad14 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -318,6 +318,7 @@ pytest tests/test_ai_review.py::TestSecurityScanner -v
 5. Add tests in `tests/test_ai_review.py`
 
 Example commands:
+- `@codebot help` - Show all available commands with examples
 - `@codebot triage` - Full issue triage with labeling
 - `@codebot explain` - Explain the issue
 - `@codebot suggest` - Suggest solutions
diff --git a/README.md b/README.md
index 6bc8be8..98694f0 100644
--- a/README.md
+++ b/README.md
@@ -173,6 +173,7 @@ In any issue comment:
 
 | Command | Description |
 |---------|-------------|
+| `@codebot help` | **Help:** Show all available commands with examples |
 | `@codebot setup-labels` | **Setup:** Automatically create/map repository labels for auto-labeling |
 | `@codebot triage` | Full issue triage with auto-labeling and analysis |
 | `@codebot summarize` | Summarize the issue in 2-3 sentences |
@@ -180,6 +181,8 @@ In any issue comment:
 | `@codebot suggest` | Suggest solutions or next steps |
 | `@codebot` (any question) | Chat with AI using codebase/web search tools |
 
+**New to OpenRabbit?** Just type `@codebot help` in any issue to see all available commands!
+
 ### Label Setup Command
 
 The `@codebot setup-labels` command intelligently detects your existing label schema and sets up auto-labeling:
diff --git a/tests/test_ai_review.py b/tests/test_ai_review.py
index a12f728..4f16f37 100644
--- a/tests/test_ai_review.py
+++ b/tests/test_ai_review.py
@@ -263,6 +263,84 @@ class TestMetrics:
         assert summary["requests"]["success"] == 1
 
 
+class TestHelpCommand:
+    """Test help command functionality."""
+
+    def test_help_command_returns_text(self):
+        """Test that help command returns formatted help text."""
+        from agents.issue_agent import IssueAgent
+
+        agent = IssueAgent(
+            gitea_client=None,
+            llm_client=None,
+            config={
+                "interaction": {
+                    "mention_prefix": "@codebot",
+                    "commands": ["help", "triage", "explain"],
+                }
+            },
+        )
+
+        help_text = agent._command_help()
+
+        assert help_text is not None
+        assert len(help_text) > 100
+        assert "@codebot" in help_text
+        assert "help" in help_text.lower()
+        assert "triage" in help_text.lower()
+
+    def test_help_includes_all_sections(self):
+        """Test that help text includes all major sections."""
+        from agents.issue_agent import IssueAgent
+
+        agent = IssueAgent(
+            gitea_client=None,
+            llm_client=None,
+            config={"interaction": {"mention_prefix": "@codebot"}},
+        )
+
+        help_text = agent._command_help()
+
+        # Check for main sections
+        assert "Issue Triage" in help_text
+        assert "Interactive Chat" in help_text
+        assert "Setup & Utility" in help_text
+        assert "Pull Request" in help_text
+        assert "Quick Examples" in help_text
+
+    def test_help_uses_custom_bot_name(self):
+        """Test that help command uses custom bot name from config."""
+        from agents.issue_agent import IssueAgent
+
+        agent = IssueAgent(
+            gitea_client=None,
+            llm_client=None,
+            config={"interaction": {"mention_prefix": "@mybot"}},
+        )
+
+        help_text = agent._command_help()
+
+        assert "@mybot" in help_text
+        assert "@codebot" not in help_text
+
+    def test_help_includes_examples(self):
+        """Test that help text includes usage examples."""
+        from agents.issue_agent import IssueAgent
+
+        agent = IssueAgent(
+            gitea_client=None,
+            llm_client=None,
+            config={"interaction": {"mention_prefix": "@codebot"}},
+        )
+
+        help_text = agent._command_help()
+
+        # Check for example commands
+        assert "triage" in help_text
+        assert "explain" in help_text
+        assert "setup-labels" in help_text
+
+
 class TestLabelSetup:
     """Test label setup and schema detection."""
 
diff --git a/tools/ai-review/agents/issue_agent.py b/tools/ai-review/agents/issue_agent.py
index 3c6e5e9..f5bafc0 100644
--- a/tools/ai-review/agents/issue_agent.py
+++ b/tools/ai-review/agents/issue_agent.py
@@ -380,7 +380,9 @@ class IssueAgent(BaseAgent):
         title = issue.get("title", "")
         body = issue.get("body", "")
 
-        if command == "summarize":
+        if command == "help":
+            return self._command_help()
+        elif command == "summarize":
             return self._command_summarize(title, body)
         elif command == "explain":
             return self._command_explain(title, body)
@@ -445,6 +447,68 @@ Be practical and concise."""
         except Exception as e:
             return f"{self.AI_DISCLAIMER}\n\nSorry, I was unable to generate suggestions. Error: {e}"
 
+    def _command_help(self) -> str:
+        """Generate help message with all available commands."""
+        mention_prefix = self.config.get("interaction", {}).get(
+            "mention_prefix", "@codebot"
+        )
+
+        help_text = f"""{self.AI_DISCLAIMER}
+
+## Available {mention_prefix} Commands
+
+### Issue Triage & Analysis
+- `{mention_prefix} triage` - Full issue triage with auto-labeling and priority assignment
+- `{mention_prefix} summarize` - Generate 2-3 sentence summary of the issue
+- `{mention_prefix} explain` - Detailed explanation of what the issue is about
+- `{mention_prefix} suggest` - Solution suggestions or next steps
+- `{mention_prefix} security` - Security-focused analysis of the issue
+
+### Interactive Chat
+- `{mention_prefix} [question]` - Ask questions about the codebase (uses search & file reading tools)
+  - Example: `{mention_prefix} how does authentication work?`
+  - Example: `{mention_prefix} find all API endpoints`
+
+### Setup & Utility
+- `{mention_prefix} help` - Show this help message
+- `{mention_prefix} setup-labels` - Auto-create/map repository labels for auto-labeling
+
+### Pull Request Analysis
+PR reviews run automatically when you open or update a pull request. The bot provides:
+- Inline code review comments
+- Security vulnerability scanning
+- Approval or change-request recommendations
+
+---
+
+### Quick Examples
+
+**Triage an issue:**
+```
+{mention_prefix} triage
+```
+
+**Get help understanding:**
+```
+{mention_prefix} explain
+```
+
+**Ask about the codebase:**
+```
+{mention_prefix} how does the authentication system work?
+```
+
+**Setup repository labels:**
+```
+{mention_prefix} setup-labels
+```
+
+---
+
+*For full documentation, see the [README](https://github.com/YourOrg/OpenRabbit/blob/main/README.md)*
+"""
+        return help_text
+
     def _command_triage(self, context: AgentContext, issue: dict) -> str:
         """Perform full triage analysis on the issue."""
         title = issue.get("title", "")
diff --git a/tools/ai-review/config.yml b/tools/ai-review/config.yml
index 969d1cd..0e76fb2 100644
--- a/tools/ai-review/config.yml
+++ b/tools/ai-review/config.yml
@@ -59,6 +59,7 @@ interaction:
     respond_to_mentions: true
     mention_prefix: "@codebot" # Change this to customize your bot's name!
     commands:
+        - help
         - explain
         - suggest
         - security