Main workflow: AI agent using custom tool
Configured with Agent, Chat Trigger, Execute Workflow Trigger, Filter, and additional nodes. Review the connections and setup before adapting this template.
Node categories in this workflow
- Trigger
- AI & models
- Data store
- Subworkflow
- Transform
- Routing
- Code
Icons describe general node roles, inferred from node types. Inspect the parameters for the configured action.
Drag to pan; use + and − to zoom. Reconstructed from the exported node positions; nothing runs here. Dashed lines represent non-main connections. Full node names and notes appear below.
How it works
The exported workflow contains the following configured nodes. Their connections are shown above; inspect the JSON for the complete logic, expressions, and external actions.
| Node | Category | Type | Operation |
|---|---|---|---|
| When chat message received | Trigger | Chat Trigger | See node parameters |
| OpenAI Chat Model1 | AI & models | OpenAI Chat Model | See node parameters |
| Simple Memory | Data store | Memory Buffer Window | See node parameters |
| When Executed by Another Workflow | Trigger | Execute Workflow Trigger | See node parameters |
| AI Agent | AI & models | Agent | See node parameters |
| List columns tool | Subworkflow | Tool Workflow | See node parameters |
| Get column values tool | Subworkflow | Tool Workflow | See node parameters |
| Get customer tool | Subworkflow | Tool Workflow | See node parameters |
| Set Google Sheet URL | Transform | Edit Fields | See node parameters |
| Get Google sheet contents | Data store | Google Sheets | See node parameters |
| Check operation | Routing | Switch | See node parameters |
| Get column names | Transform | Edit Fields | See node parameters |
| Prepare column data | Transform | Edit Fields | See node parameters |
| Filter | Routing | Filter | See node parameters |
| Prepare output | Code | Code | See node parameters |
Setup
- Download the JSON and import it into an isolated n8n instance. Leave the workflow inactive.
- Connect your own credentials through n8n’s credential store. Replace
REPLACE_WITH_*values with your resource identifiers. - Inspect API destinations, Code nodes, database queries, file paths, and outbound actions.
- Run with synthetic data and harmless destinations. Enable triggers only after checking the actual outputs.
Requirements
An n8n instance with the listed node types and compatible versions. Service-connected workflows may require accounts, credentials, or paid APIs.
Credential types declared in the source
googleSheetsOAuth2ApiopenAiApi
Workflow notes
Sub-workflow: Custom tool
Sub-workflow: Custom tool
This can be called by the agent above. It returns three different types of data from the Google Sheet, which can be used together for more complex queries without returning the whole sheet (which might be too big for GPT to handle)
Try me out
Try me out
Click the 'Chat' button at the bottom and enter:
Which is our biggest customer?
Sticky Note
These tools all call the sub-workflow below
Sticky Note4
Change the URL of the Google Sheet here
Main workflow: AI agent using custom tool
Main workflow: AI agent using custom tool
Purpose and structure
This folder contains the Main workflow: AI agent using custom tool workflow. Its executable nodes use agent, chatTrigger, code, executeWorkflowTrigger, filter, googleSheets, lmChatOpenAi, memoryBufferWindow, set, switch, toolWorkflow. The table and connection map below are derived from the JSON, not an inferred guarantee of behavior.
Setup
Import inactive. Configure your own credentials and replace REPLACE_WITH_* values. Review external destinations and Code nodes before running.
Entry points
When chat message received, When Executed by Another Workflow
Verification
Sanitized source candidate; not runtime-tested. This overview is generated from node metadata. Read the folder README for the connection map, credential types, and license.
Attribution
https://github.com/Zie619/n8n-workflows/blob/94007c1445d9258a7da116646b79473e7c7c3282/workflows/Code/0401_Code_Filter_Send_Triggered.json MIT; preserve source notices.
Canvas section labels
These name areas of the original canvas; they do not include explanatory instructions.
- Main workflow: AI agent using custom tool