="#using-langchain-tools" title="Permanent link">&para;</a></h4>
<ul>
<li>Refer to LangChain tools in the <code>tools</code> field with the syntax <code>LANGCHAIN.tool_name</code>.</li>
<li>Ensure the required LangChain packages are installed.</li>
</ul>
<p><strong>Example YAML Node:</strong></p>
<div class="codehilite"><pre><span></span><code><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scal