Awesome-omni-skill n8n-builder

Expert n8n workflow builder that creates, deploys, and manages n8n workflows programmatically via the n8n REST API. Use when asked to create n8n workflows, automate n8n tasks, build automations, design workflow pipelines, connect services via n8n, or manage existing n8n workflows. Handles webhook flows, scheduled tasks, AI agents, database syncs, conditional logic, error handling, and any n8n node configuration.

install

source · Clone the upstream repo

git clone https://github.com/diegosouzapw/awesome-omni-skill

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/diegosouzapw/awesome-omni-skill "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/development/n8n-builder" ~/.claude/skills/diegosouzapw-awesome-omni-skill-n8n-builder && rm -rf "$T"

manifest: skills/development/n8n-builder/SKILL.md

source content

n8n Workflow Builder

Setup

Requires two environment variables:

```
N8N_URL
```
— n8n instance URL (e.g.
```
https://your-n8n.example.com
```
)
```
N8N_API_KEY
```
— n8n API key (Settings → API → Create API Key)

Workflow

Understand the automation — Clarify trigger (webhook/schedule/manual), data sources, processing logic, outputs, and error handling needs.
Design the workflow JSON — Build valid n8n workflow JSON following the schema in
```
references/workflow-schema.md
```
. Use patterns from
```
references/workflow-patterns.md
```
as templates.

Deploy via API — Use

scripts/n8n-api.sh create <file>

or pipe JSON to

scripts/n8n-api.sh create-stdin

Activate — Use
```
scripts/n8n-api.sh activate <workflow_id>
```
for trigger-based workflows.
Verify — List workflows to confirm deployment:
```
scripts/n8n-api.sh list
```
.

API Script Reference

# List all workflows
scripts/n8n-api.sh list

# Create workflow from JSON file
scripts/n8n-api.sh create /tmp/workflow.json

# Create from stdin
echo '{"name":"Test",...}' | scripts/n8n-api.sh create-stdin

# Get, activate, deactivate, delete, execute
scripts/n8n-api.sh get <id>
scripts/n8n-api.sh activate <id>
scripts/n8n-api.sh deactivate <id>
scripts/n8n-api.sh delete <id>
scripts/n8n-api.sh execute <id>

# List credentials and tags
scripts/n8n-api.sh credentials
scripts/n8n-api.sh tags

Building Workflow JSON

Every workflow needs:

name

nodes[]

connections{}

settings{}

Every node needs:

id

name

type

typeVersion

position

parameters

Connections use source node display name as key, mapping outputs to target nodes.

For full schema, node types, and expression syntax → read

references/workflow-schema.md

For complete workflow examples (webhook, schedule, AI agent, DB sync, error handling) → read

references/workflow-patterns.md

Key Rules

Always set
"executionOrder": "v1"
in settings
Node names must be unique within a workflow
Node IDs must be unique — use descriptive slugs like
```
webhook1
```
,
```
code1
```
Position nodes starting at
```
[250, 300]
```
, spacing ~200px horizontally
IF nodes have two outputs: index 0 = true, index 1 = false

Webhook workflows need

respondToWebhook

node if

responseMode

responseNode

Credentials must exist in n8n before activation — check with
```
scripts/n8n-api.sh credentials
```
Test before activating — use
```
scripts/n8n-api.sh execute <id>
```
for manual trigger workflows
Use
continueOnFail: true
on risky HTTP/API nodes, then check for errors downstream

Common Real Estate Workflows

Lead intake: Webhook → validate → dedupe → insert DB → notify Slack/SMS
Call follow-up: Schedule → query DB for completed calls → send SMS/email based on outcome
Drip campaign: Schedule → query leads by stage → send stage-appropriate email/SMS
CRM sync: Webhook → transform → update HubSpot/Salesforce + internal DB
Property alerts: Schedule → scrape/API listings → filter new → notify leads
AI qualification: Webhook → AI Agent (classify lead intent) → route to appropriate pipeline