diff --git a/src/agentkit/core/config_driven.py b/src/agentkit/core/config_driven.py
index ca61122..f88b3cf 100644
--- a/src/agentkit/core/config_driven.py
+++ b/src/agentkit/core/config_driven.py
@@ -405,16 +405,33 @@ class ConfigDrivenAgent(BaseAgent, EvolutionMixin):
         return self._config.llm.get("model", "default") if self._config.llm else "default"
 
     def get_system_prompt(self) -> str | None:
-        """Return the system prompt for this agent."""
+        """Return the system prompt for this agent, including available tools."""
+        parts = []
+
         if self._prompt_template:
             sections = self._prompt_template._sections
-            parts = []
             for key in ("identity", "context", "instructions", "constraints", "output_format"):
                 val = getattr(sections, key, "")
                 if val:
                     parts.append(val)
-            return "\n".join(parts) if parts else None
-        return None
+
+        # Append available tools description so the LLM knows what it can use
+        if self._tools:
+            tools_desc = self._build_tools_description()
+            parts.append(f"\n\n## 可用工具\n{tools_desc}")
+
+        return "\n".join(parts) if parts else None
+
+    def _build_tools_description(self) -> str:
+        """Build a text description of available tools for the system prompt."""
+        lines = []
+        for tool in self._tools:
+            lines.append(f"- **{tool.name}**: {tool.description}")
+            if tool.input_schema and "properties" in tool.input_schema:
+                params = list(tool.input_schema["properties"].keys())
+                if params:
+                    lines[-1] += f" (参数: {', '.join(params)})"
+        return "\n".join(lines)
 
     def get_react_config(self) -> dict:
         """Return ReAct engine configuration."""