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fix(AI Agent Node): Improve Tools agent empty tool input message #9622

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merged 4 commits into from
Jun 5, 2024
Merged

fix(AI Agent Node): Improve Tools agent empty tool input message #9622

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f5dbb55
Change Tools agent order
OlegIvaniv Jun 4, 2024
2cfc5c0
Wrap OpenAI empty tools error response
OlegIvaniv Jun 4, 2024
e79c0a3
Check if model is openai before showing the empty tools error
OlegIvaniv Jun 5, 2024
c59f126
Merge branch 'master' into ai-191-tools-agent-dont-error-when-there-a…
OlegIvaniv Jun 5, 2024
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13 changes: 7 additions & 6 deletions packages/@n8n/nodes-langchain/nodes/agents/Agent/Agent.node.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -190,7 +190,14 @@ const agentTypeProperty: INodeProperties = {
name: 'agent',
type: 'options',
noDataExpression: true,
// eslint-disable-next-line n8n-nodes-base/node-param-options-type-unsorted-items
options: [
{
name: 'Tools Agent',
value: 'toolsAgent',
description:
'Utilized unified Tool calling interface to select the appropriate tools and argument for execution',
},
{
name: 'Conversational Agent',
value: 'conversationalAgent',
Expand Down Expand Up @@ -219,12 +226,6 @@ const agentTypeProperty: INodeProperties = {
value: 'sqlAgent',
description: 'Answers questions about data in an SQL database',
},
{
name: 'Tools Agent',
value: 'toolsAgent',
description:
'Utilized unified Tool calling interface to select the appropriate tools and argument for execution',
},
],
default: '',
};
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15 changes: 13 additions & 2 deletions packages/@n8n/nodes-langchain/nodes/agents/Agent/agents/ToolsAgent/execute.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -155,11 +155,19 @@ export async function toolsAgentExecute(this: IExecuteFunctions): Promise<INodeE
throw new NodeOperationError(this.getNode(), 'The ‘text parameter is empty.');
}

// OpenAI doesn't allow empty tools array so we will provide a more user-friendly error message
if (model.lc_namespace.includes('openai') && tools.length === 0) {
throw new NodeOperationError(
this.getNode(),
"Please connect at least one tool. If you don't need any, try the conversational agent instead",
);
}

const response = await executor.invoke({
input,
system_message: options.systemMessage ?? SYSTEM_MESSAGE,
formatting_instructions:
'IMPORTANT: Always call `format_final_response` to format your final response!', //outputParser?.getFormatInstructions(),
'IMPORTANT: Always call `format_final_response` to format your final response!',
});

returnData.push({
Expand All @@ -174,7 +182,10 @@ export async function toolsAgentExecute(this: IExecuteFunctions): Promise<INodeE
});
} catch (error) {
if (this.continueOnFail()) {
returnData.push({ json: { error: error.message }, pairedItem: { item: itemIndex } });
returnData.push({
json: { error: error?.message },
pairedItem: { item: itemIndex },
});
continue;
}

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