(5/5)

n8n Subworkflow Dependency Graph & Auto-Tagging

Automated workflow: n8n Subworkflow Dependency Graph & Auto-Tagging. This workflow integrates 17 different services: webhook, filter, httpRequest, stickyNote, code. It contains 52 nodes and follows best practices for error handling and security.

Integrations Used (5)

N8n

Workflow Structure (27 nodes)

100%

N8n Trigger

When this workflow is activated

Webhook

When viewed in a browser

N8n

GET all workflows

Code

List callers of subworkflows

Filter

Exclude uncalled workflows

N8n

GET workflow(s)

Filter

Exclude missing workflows

Set

Count callers and identify new callers

Split In Batches

Loop through workflows

Aggregate

Combine dependency graph values into labels

Code

Format workflow relationship data for rendering

Quick Chart

Visualize subworkflow dependency graph

Respond To Webhook

Visualize dependency graph with MermaidJS

Schedule Trigger

And every Sunday

If any new callers

Http Request

GET all tags again

Set

SET instance_url

Http Request

GET all tags

Split Out

Split out new callers as new tags

Set

Create tag id:name dictionary

Set

Remove existing tags from new_callers list

Http Request

Create new tags

Set

Retrieve tag ids and names from dictionary

Http Request

Update workflow tags

Code

Return original pass through values

Merge

Set

Return dependency graph data

Node Types:

http

default

code

logic

trigger

transform

Requires credentials

Prerequisites

Required Credentials (1)

N8n

Used by: Update workflow tags, GET all workflows +4 more

Docs

Complexity

Advanced

Expert level. Custom code, complex logic, many integrations.

Setup time: ~40 min

Score: 80/100

Custom Code

Conditional Logic

Loops

9 Integrations

When to Use This Workflow

Scheduled Operations

Run automated tasks at specific times - daily reports, weekly cleanups, monthly backups.

Set it and forget it - reliable automation that runs on your schedule.

Real-time Response

React instantly when events happen - new orders, form submissions, or API calls.

Zero delay between trigger and action for time-sensitive workflows.

Error Reduction

Eliminate human error from routine processes with consistent automation.

Improve accuracy and reliability across your workflows.

workflow.json

{
  "id": "P9Jr9s9yfcDXTe9R",
  "meta": {
    "instanceId": "workflow-f2e683f6",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:54.152355",
    "updatedAt": "2025-09-29T07:07:54.152371",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "n8n Subworkflow Dependency Graph & Auto-Tagging",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
...