Antigravity N8n Skills

https://github.com/wilkomarketing/antigravity-n8n-skills
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Expert Google Antigravity skills for building production-ready n8n workflows with correct expression...
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### Explore AI Nodes

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SEARCH_GUIDE.md

This example shows how to search for all AI-related nodes, retrieve detailed documentation for an AI Agent node, and get its configuration details along with examples.

```javascript
// Find all AI-related nodes
search_nodes({query: "ai agent", source: "all"})
```

```javascript
// Get AI Agent documentation
get_node({nodeType: "nodes-langchain.agent", mode: "docs"})
```

```javascript
// Get configuration details with examples
get_node({
  nodeType: "nodes-langchain.agent",
  includeExamples: true
})
```

--------------------------------

### HTTP Request Node Examples

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/SKILL.md

Examples for performing GET and POST requests using the HTTP Request node.

```javascript
{
  "method": "GET",
  "url": "https://api.example.com/users",
  "authentication": "predefinedCredentialType",
  "nodeCredentialType": "httpHeaderAuth",
  "sendQuery": true,                    // Optional
  "queryParameters": {                  // Shows when sendQuery=true
    "parameters": [
      {
        "name": "limit",
        "value": "100"
      }
    ]
  }
}
```

```javascript
{
  "method": "POST",
  "url": "https://api.example.com/users",
  "authentication": "none",
  "sendBody": true,                     // Required for POST
  "body": {                             // Required when sendBody=true
    "contentType": "json",
    "content": {
      "name": "John Doe",
      "email": "john@example.com"
    }
  }
}
```

--------------------------------

### Get Node Documentation (Docs Mode)

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SEARCH_GUIDE.md

Use `get_node` with `mode="docs"` to retrieve human-readable documentation for a node, including usage examples, authentication guides, and best practices. This is ideal for learning how to use a node.

```javascript
get_node({
  nodeType: "nodes-base.slack",
  mode: "docs"
})
```

--------------------------------

### Include Examples in Node Info

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SEARCH_GUIDE.md

Use `includeExamples: true` when calling `get_node` to retrieve real-world configuration examples. This option adds significant token count and is only effective with `mode: "info"` and `detail: "standard"`.

```javascript
get_node({
  nodeType: "nodes-base.slack",
  includeExamples: true   // Adds ~200-400 tokens per example
})
```

--------------------------------

### Retrieve Node Details with Examples

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Use `get_node` with `includeExamples: true` to fetch detailed configurations and examples for a specific node type. This is typically done after searching for nodes.

```javascript
// Step 2: Get details (~18s later, user reviewing results)
const details = await get_node({
  nodeType: "nodes-base.slack",
  includeExamples: true  // Get real template configs
});
// → Returns: operations, properties, metadata
```

--------------------------------

### Deploy n8n Template and Get Result

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/WORKFLOW_GUIDE.md

Example of deploying a template and capturing the result, which includes the new workflow ID, required credentials, and any fixes applied.

```javascript
// Deploy a webhook to Slack template
const result = n8n_deploy_template({
  templateId: 2947,
  name: "Production Slack Notifier"
});

// Result includes:
// - id: "new-workflow-id"
// - requiredCredentials: ["slack"]
// - fixesApplied: ["typeVersion upgraded", "expression format fixed"]
```

--------------------------------

### Configuration Anti-Patterns

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/SKILL.md

Examples of over-configuring nodes versus starting with minimal configurations.

```javascript
// Adding every possible field
{
  "method": "GET",
  "url": "...",
  "sendQuery": false,
  "sendHeaders": false,
  "sendBody": false,
  "timeout": 10000,
  "ignoreResponseCode": false,
  // ... 20 more optional fields
}
```

```javascript
// Start minimal
{
  "method": "GET",
  "url": "...",
  "authentication": "none"
}
// Add fields only when needed
```

--------------------------------

### AI Agent Guide

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Retrieve a comprehensive guide for AI-based workflows.

```javascript
// Comprehensive AI workflow guide
ai_agents_guide()
// Returns: Architecture, connections, tools, validation, best practices
```

--------------------------------

### Weather to Slack Workflow Example

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/README.md

This is a template example demonstrating a common workflow pattern. It involves scheduling a task, making an HTTP request to fetch weather data, transforming the data using a 'Set' node, and finally sending the information to Slack.

```plaintext
Schedule (daily 8 AM) → HTTP Request (weather) → Set → Slack
```

--------------------------------

### Start with Manual Trigger

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/ai_agent_workflow.md

Workflow pattern for testing agents with mock data.

```text
Manual Trigger
  → Set (mock user input)
  → AI Agent
  → Code (log output)
```

--------------------------------

### Get Tool Documentation

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Access documentation for specific tools or general guides for code nodes.

```javascript
// Overview of all tools
tools_documentation()

// Specific tool details
tools_documentation({
  topic: "search_nodes",
  depth: "full"
})

// Code node guides
tools_documentation({topic: "javascript_code_node_guide", depth: "full"})
tools_documentation({topic: "python_code_node_guide", depth: "full"})
```

--------------------------------

### Configure GET Request

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/http_api_integration.md

Standard configuration for a GET request with query parameters.

```javascript
{
  method: "GET",
  url: "https://api.example.com/users",
  sendQuery: true,
  queryParameters: {
    "page": "1",
    "limit": "100",
    "filter": "active"
  }
}
```

--------------------------------

### Deploy Template for Quick Starts

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Utilize `n8n_deploy_template` for quickly setting up new projects or workflows based on predefined templates.

```bash
n8n_deploy_template
```

--------------------------------

### Install Skills for a Workspace

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/README.md

Creates a local .agent/skills directory and clones the repository to enable skills for a specific project.

```bash
mkdir -p .agent/skills
git clone https://github.com/WilkoMarketing/antigravity-n8n-skills.git .agent/skills
```

--------------------------------

### Example Multiple Start Nodes Warning

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/SKILL.md

This JSON structure represents a warning about 'Multiple trigger nodes found', implying only one will execute.

```json
{
  "warning": "Multiple trigger nodes found - only one will execute"
}
```

--------------------------------

### Select AI Model

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/ai_agent_workflow.md

Performance-based model selection guide.

```text
Fast & cheap: GPT-3.5-turbo, Claude 3 Haiku
Balanced: GPT-4, Claude 3 Sonnet
Powerful: GPT-4-turbo, Claude 3 Opus
```

--------------------------------

### Check Version Compatibility

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SEARCH_GUIDE.md

These examples demonstrate how to retrieve all available versions for a node and check for breaking changes between specific versions.

```javascript
// See all versions
get_node({nodeType: "nodes-base.executeWorkflow", mode: "versions"})
```

```javascript
// Check breaking changes from v1 to v2
get_node({
  nodeType: "nodes-base.executeWorkflow",
  mode: "breaking",
  fromVersion: "1.0"
})
```

--------------------------------

### Use IncludeExamples for Real Configurations

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Set `includeExamples: true` when working with configurations to ensure that real-world examples are included for better understanding and testing.

```javascript
includeExamples: true
```

--------------------------------

### Get Slack Node Info (Standard Detail)

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/SKILL.md

Retrieves information for the Slack node using the default 'standard' detail level. This is the recommended way to start node configuration.

```javascript
get_node({
  nodeType: "nodes-base.slack"
});
// detail="standard" is the default
```

--------------------------------

### Install Skills Globally

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/README.md

Clones the skills repository into the global Antigravity skills directory for use across all workspaces.

```bash
cd ~/.gemini/antigravity/skills
git clone https://github.com/WilkoMarketing/antigravity-n8n-skills.git .
```

--------------------------------

### Common Webhook Scenarios

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-javascript/DATA_ACCESS.md

Examples for handling form submissions, JSON APIs, query parameters, and specific headers.

```javascript
// Scenario 1: Form submission
const formData = $json.body;
const name = formData.name;
const email = formData.email;

// Scenario 2: JSON API webhook
const apiPayload = $json.body;
const eventType = apiPayload.event;
const data = apiPayload.data;

// Scenario 3: Query parameters
const apiKey = $json.query.api_key;
const userId = $json.query.user_id;

// Scenario 4: Headers
const authorization = $json.headers['authorization'];
const signature = $json.headers['x-signature'];
```

--------------------------------

### IF Node Condition Examples

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/SKILL.md

Demonstrates binary string comparison and unary empty checks for the IF node.

```javascript
{
  "conditions": {
    "string": [
      {
        "value1": "={{$json.status}}",
        "operation": "equals",
        "value2": "active"              // Binary: needs value2
      }
    ]
  }
}
```

```javascript
{
  "conditions": {
    "string": [
      {
        "value1": "={{$json.email}}",
        "operation": "isEmpty",
        // No value2 - unary operator
        "singleValue": true             // Auto-added by sanitization
      }
    ]
  }
}
```

--------------------------------

### POST /get_node

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SEARCH_GUIDE.md

Retrieves detailed information, documentation, or configuration examples for a specific node.

```APIDOC
## POST /get_node

### Description
Fetches metadata, documentation, or configuration details for a specific nodeType. Supports various modes like standard, docs, versions, and search_properties.

### Method
POST

### Endpoint
/get_node

### Parameters
#### Request Body
- **nodeType** (string) - Required - The identifier of the node.
- **mode** (string) - Optional - The operation mode (e.g., "standard", "docs", "versions", "search_properties").
- **includeExamples** (boolean) - Optional - Whether to include real-world configuration examples.
- **propertyQuery** (string) - Optional - Used with search_properties mode to find specific fields.
- **fromVersion** (string) - Optional - Used with breaking mode to check version changes.

### Request Example
{
  "nodeType": "nodes-base.slack",
  "includeExamples": true
}

### Response
#### Success Response (200)
- **data** (object) - Returns node operations, documentation, or configuration examples based on the requested mode.
```

--------------------------------

### Operation Context Management

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/SKILL.md

Examples showing how changing operations requires updating node configuration fields.

```javascript
// Same config for all Slack operations
{
  "resource": "message",
  "operation": "post",
  "channel": "#general",
  "text": "..."
}

// Then switching operation without updating config
{
  "resource": "message",
  "operation": "update",  // Changed
  "channel": "#general",  // Wrong field for update!
  "text": "..."
}
```

```javascript
// Check requirements when changing operation
get_node({
  nodeType: "nodes-base.slack"
});
// See what update operation needs (messageId, not channel)
```

--------------------------------

### Define Tool Descriptions

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/ai_agent_workflow.md

Example of why clear tool descriptions are necessary.

```text
description: "Get data"  // AI won't know when to use this
```

--------------------------------

### Complete validation workflow example

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/VALIDATION_GUIDE.md

A multi-step process for validating node requirements, configuring nodes, and applying auto-fixes.

```javascript
// Step 1: Get node requirements (quick check)
validate_node({
  nodeType: "nodes-base.slack",
  config: {},
  mode: "minimal"
});
// → Know what's required

// Step 2: Configure node
const config = {
  resource: "message",
  operation: "post",
  channel: "#general",
  text: "Hello!"
};

// Step 3: Validate configuration (full validation)
const result = validate_node({
  nodeType: "nodes-base.slack",
  config,
  profile: "runtime"
});

// Step 4: Check result
if (result.valid) {
  console.log("Configuration valid!");
} else {
  console.log("Errors:", result.errors);
  // Fix and validate again
}

// Step 5: Validate in workflow context
validate_workflow({
  workflow: {
    nodes: [{...config as node...}],
    connections: {...}
  }
});

// Step 6: Apply auto-fixes if needed
n8n_autofix_workflow({
  id: "workflow-id",
  applyFixes: true
});
```

--------------------------------

### OpenAI Chat Model Configuration

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/ai_agent_workflow.md

Example configuration for an OpenAI chat model, specifying the model name, temperature, and maximum tokens.

```javascript
{
  model: "gpt-4",
  temperature: 0.7,
  maxTokens: 1000
}
```

--------------------------------

### Simple Chatbot Workflow

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/ai_agent_workflow.md

A basic chatbot setup using a webhook, an AI agent with memory, and a webhook response.

```text
Webhook → AI Agent (GPT-4 + Memory) → Webhook Response
```

--------------------------------

### Conditional Fields Missing Error Example

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/ERROR_CATALOG.md

Shows how to handle required fields that depend on other configuration settings.

```json
{
  "type": "missing_required",
  "property": "body",
  "message": "Request body is required when sendBody is true",
  "node": "HTTP Request",
  "path": "parameters.body"
}
```

```javascript
{
  "method": "POST",
  "url": "https://api.example.com/create",
  "sendBody": true
  // Missing: body (required when sendBody=true)
}
```

```javascript
{
  "method": "POST",
  "url": "https://api.example.com/create",
  "sendBody": true,
  "body": {
    "contentType": "json",
    "content": {
      "name": "John",
      "email": "john@example.com"
    }
  }  // ✅ Added conditional required field
}
```

--------------------------------

### Invalid Channel Format Error Example

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/ERROR_CATALOG.md

Illustrates the fix for an invalid channel format error.

```json
{
  "type": "invalid_value",
  "property": "channel",
  "message": "Channel name must start with # and be lowercase (e.g., #general)",
  "current": "General"
}
```

```javascript
{
  "resource": "message",
  "operation": "post",
  "channel": "General"  // ❌ Wrong format
}
```

```javascript
{
  "resource": "message",
  "operation": "post",
  "channel": "#general"  // ✅ Correct format
}
```

--------------------------------

### Iterative validation loop example

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/VALIDATION_GUIDE.md

Demonstrates the cycle of configuring a node, validating, and fixing errors until the configuration is valid.

```javascript
// Iteration 1
let config = {
  resource: "channel",
  operation: "create"
};

const result1 = validate_node({
  nodeType: "nodes-base.slack",
  config,
  profile: "runtime"
});
// → Error: Missing "name"

// Iteration 2 (~58s later)
config.name = "general";

const result2 = validate_node({
  nodeType: "nodes-base.slack",
  config,
  profile: "runtime"
});
// → Valid!
```

--------------------------------

### SQL for Read-Only Database User

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/ai_agent_workflow.md

Example SQL commands to create a read-only user for AI tools accessing a database. Grant only SELECT privileges.

```sql
CREATE USER ai_readonly WITH PASSWORD 'secure_password';
GRANT SELECT ON customers, orders TO ai_readonly;
-- NO INSERT, UPDATE, DELETE access
```

--------------------------------

### Cron Expression Examples

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/scheduled_tasks.md

Illustrative cron expressions for various scheduling scenarios, including intervals, specific times, and ranges.

```text
0 */6 * * *      Every 6 hours
```

```text
0 9,17 * * *     At 9 AM and 5 PM daily
```

```text
0 0 * * 0        Every Sunday at midnight
```

```text
*/30 * * * *     Every 30 minutes
```

```text
0 0 1,15 * *     1st and 15th of each month
```

--------------------------------

### HTTP Request Node Method-Dependent Fields

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/SKILL.md

Illustrates how fields in the HTTP Request node change based on the HTTP method. For example, 'sendBody' and 'body' are relevant for POST requests but not GET.

```javascript
// When method='GET'
{
  "method": "GET",
  "url": "https://api.example.com"
  // sendBody not shown (GET doesn't have body)
}

// When method='POST'
{
  "method": "POST",
  "url": "https://api.example.com",
  "sendBody": true,       // Now visible!
  "body": {               // Required when sendBody=true
    "contentType": "json",
    "content": {...}
  }
}
```

--------------------------------

### Common Workflow: Search, Get Node, Validate

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SEARCH_GUIDE.md

The most common pattern for using n8n nodes involves searching for a node by keyword, retrieving its configuration details (including examples), and then validating the configuration before incorporating it into a workflow. This sequence ensures that the node is discoverable, well-understood, and correctly configured.

```javascript
search_nodes({query: "slack"})
```

```javascript
get_node({
  nodeType: "nodes-base.slack",
  includeExamples: true
})
```

```javascript
validate_node({
  nodeType: "nodes-base.slack",
  config: {resource: "channel", operation: "create"},
  profile: "runtime"
})
```

--------------------------------

### Best Practice: Check Dependencies

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/DEPENDENCIES.md

When encountering configuration issues, use `get_node` with `mode: 'search_properties'` to inspect field dependencies and visibility rules.

```javascript
get_node({nodeType: "...", mode: "search_properties", propertyQuery: "..."});
```

--------------------------------

### GET /n8n_executions (Get Details)

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/WORKFLOW_GUIDE.md

Retrieves detailed information or a summary of a specific workflow execution.

```APIDOC
## GET /n8n_executions

### Description
Retrieves details for a specific execution ID.

### Parameters
#### Request Body
- **action** (string) - Required - Must be "get"
- **id** (string) - Required - The execution ID
- **mode** (string) - Optional - The detail level: preview, summary, filtered, full, or error
- **includeStackTrace** (boolean) - Optional - Include stack trace if mode is error

### Request Example
{
  "action": "get",
  "id": "execution-id",
  "mode": "summary"
}
```

--------------------------------

### Configure HTTP GET Request

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/OPERATION_PATTERNS.md

Patterns for performing GET requests, including basic usage, query parameters, and authentication.

```json
{
  "method": "GET",
  "url": "https://api.example.com/users",
  "authentication": "none"
}
```

```json
{
  "method": "GET",
  "url": "https://api.example.com/users",
  "authentication": "none",
  "sendQuery": true,
  "queryParameters": {
    "parameters": [
      {
        "name": "limit",
        "value": "100"
      },
      {
        "name": "offset",
        "value": "={{$json.offset}}"
      }
    ]
  }
}
```

```json
{
  "method": "GET",
  "url": "https://api.example.com/users",
  "authentication": "predefinedCredentialType",
  "nodeCredentialType": "httpHeaderAuth"
}
```

--------------------------------

### Get Node Information (Standard Detail)

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SEARCH_GUIDE.md

Use `get_node` with `detail="standard"` (the default) when you need comprehensive configuration details for a node. Set `includeExamples: true` to retrieve real template configurations.

```javascript
get_node({
  nodeType: "nodes-base.slack",      // Required: SHORT prefix format
  includeExamples: true              // Optional: get real template configs
})
// detail="standard" is the default
```

--------------------------------

### Use Smart Parameters for Clarity

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Employ smart parameters like `branch` and `case` to enhance the clarity and readability of your node configurations.

```javascript
branch="true"
```

```javascript
case=0
```

--------------------------------

### Get Specific Workflow Version

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/WORKFLOW_GUIDE.md

Fetch details of a particular workflow version by its `versionId` using `n8n_workflow_versions` with `mode: 'get'`.

```javascript
n8n_workflow_versions({
  mode: "get",
  versionId: 123
})
```

--------------------------------

### Get First Item - _input.first()

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-python/DATA_ACCESS.md

Use `_input.first()` to retrieve only the first item from the previous node. This is useful for single-item operations, processing API responses, or getting an initial data point.

```python
# Get first item from previous node
first_item = _input.first()

# Access the JSON data
data = first_item["json"]

print(f"First item: {data}")

return [{"json": data}]
```

```python
# Get API response (typically single object)
response = _input.first()["json"]

# Extract what you need
return [{
    "json": {
        "user_id": response.get("data", {}).get("user", {}).get("id"),
        "user_name": response.get("data", {}).get("user", {}).get("name"),
        "status": response.get("status"),
        "fetched_at": datetime.now().isoformat()
    }
}]
```

```python
data = _input.first()["json"]

# Transform structure
return [{
    "json": {
        "id": data.get("id"),
        "contact": {
            "email": data.get("email"),
            "phone": data.get("phone")
        },
        "address": {
            "street": data.get("street"),
            "city": data.get("city"),
            "zip": data.get("zip")
        }
    }
}]
```

```python
item = _input.first()["json"]

```

--------------------------------

### Configure Database Node as AI Tool

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/ai_agent_workflow.md

Set up a database node (e.g., Postgres) as an AI tool. Define metadata and SQL query parameters. Ensure a read-only database user for security.

```javascript
{
  // Tool metadata
  name: "query_customers",
  description: "Query customer database. Use SELECT queries to find customer information by email, name, or ID.",

  // Postgres config
  operation: "executeQuery",
  query: "={{$json.sql}}",  // AI provides SQL
  // Security: Use read-only database user!
}
```

--------------------------------

### GET /n8n_executions (List)

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/WORKFLOW_GUIDE.md

Lists workflow executions based on filters.

```APIDOC
## GET /n8n_executions

### Description
Lists executions for a specific workflow.

### Parameters
#### Request Body
- **action** (string) - Required - Must be "list"
- **workflowId** (string) - Required - The ID of the workflow
- **status** (string) - Optional - Filter by status: success, error, waiting
- **limit** (number) - Optional - Maximum number of results

### Request Example
{
  "action": "list",
  "workflowId": "workflow-id",
  "status": "error",
  "limit": 100
}
```

--------------------------------

### Configuration Discovery Workflow in n8n

Source: https://context7.com/wilkomarketing/antigravity-n8n-skills/llms.txt

Outlines a three-step process to discover node configurations using `get_node`, starting with standard detail and progressively requesting more information if needed.

```javascript
// CONFIGURATION DISCOVERY WORKFLOW
// Step 1: Get node info (standard detail default)
get_node({nodeType: "nodes-base.httpRequest"})

// Step 2: If stuck on specific field, search for it
get_node({
  nodeType: "nodes-base.httpRequest",
  mode: "search_properties",
  propertyQuery: "body"
})

// Step 3: Only if needed, get full schema
get_node({
  nodeType: "nodes-base.httpRequest",
  detail: "full"  // 3-8K tokens, use sparingly
})

```

--------------------------------

### Importing Python Standard Library Modules

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-python/STANDARD_LIBRARY.md

Demonstrates which modules are available and which external packages are unsupported in n8n.

```python
# ❌ NOT AVAILABLE - Will cause ModuleNotFoundError
import requests      # No HTTP library!
import pandas        # No data analysis!
import numpy         # No numerical computing!
import bs4          # No web scraping!
import selenium     # No browser automation!
import psycopg2     # No database drivers!
import pymongo      # No MongoDB!
import sqlalchemy   # No ORMs!

# ✅ AVAILABLE - Standard library only
import json
import datetime
import re
import base64
import hashlib
import urllib.parse
import urllib.request
import math
import random
import statistics
```

--------------------------------

### Credential Management Best Practices

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/FALSE_POSITIVES.md

Demonstrates the difference between insecure hardcoded credentials and the recommended n8n credential system.

```javascript
// BAD: Real API key in workflow
{
  "headers": {
    "Authorization": "Bearer sk_live_abc123..."
  }
  // ❌ NEVER hardcode real credentials!
}

// GOOD: Use credentials system
{
  "authentication": "headerAuth",
  "credentials": {
    "headerAuth": {
      "id": "credential-id",
      "name": "My API Key"
    }
  }
}
```

--------------------------------

### Basic Switch Node Configuration

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/OPERATION_PATTERNS.md

Set up a basic Switch node with multiple rules. Ensure the number of rules matches the number of available outputs. A 'fallbackOutput' can be specified for non-matching cases.

```json
{
  "mode": "rules",
  "rules": {
    "rules": [
      {
        "conditions": {
          "string": [
            {
              "value1": "={{$json.status}}",
              "operation": "equals",
              "value2": "active"
            }
          ]
        }
      },
      {
        "conditions": {
          "string": [
            {
              "value1": "={{$json.status}}",
              "operation": "equals",
              "value2": "pending"
            }
          ]
        }
      }
    ]
  },
  "fallbackOutput": "extra"  // Catch-all for non-matching
}
```

--------------------------------

### Resolve missing_required error

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/SKILL.md

Example of identifying and fixing a missing required property error.

```javascript
// Error
{
  "type": "missing_required",
  "property": "channel",
  "message": "Channel name is required"
}

// Fix
config.channel = "#general";
```

--------------------------------

### Validation Best Practices

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/SKILL.md

Ensuring configurations are validated before deployment.

```javascript
// Configure and deploy without validating
const config = {...};
n8n_update_partial_workflow({...});  // YOLO
```

```javascript
// Validate before deploying
const config = {...};
const result = validate_node({...});
if (result.valid) {
  n8n_update_partial_workflow({...});
}
```

--------------------------------

### Add Timestamp to Each Item

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-python/SKILL.md

Example of processing a single item in 'Run Once for Each Item' mode.

```python
# Example: Add processing timestamp to each item
item = _input.item

return [{
    "json": {
        **item["json"],
        "processed": True,
        "processed_at": datetime.now().isoformat()
    }
}]
```

--------------------------------

### Common Workflow Steps

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Follow this sequence for building and managing workflows: search nodes, get node details, validate the node, create the workflow, verify it, update partially, and finally activate.

```text
search_nodes → find node
get_node → understand config
validate_node → check config
n8n_create_workflow → build
n8n_validate_workflow → verify
n8n_update_partial_workflow → iterate
activateWorkflow → go live!
```

--------------------------------

### Common Input Access Patterns

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-python/DATA_ACCESS.md

Examples of common data access scenarios in n8n.

```python
sum(i["json"].get("amount", 0) for i in items)
```

```python
_input.first()["json"].get("data")
```

```python
_input.item["json"]
```

```python
_node["API"]["json"]
```

```python
[i for i in items if i["json"].get("active")]
```

```python
{**_input.first()["json"], "new": True}
```

```python
_input.first()["json"]["body"]
```

--------------------------------

### HTTP Request Configuration Flow

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/DEPENDENCIES.md

Demonstrates the sequential dependency chain required to enable and configure a POST request body.

```javascript
{
  "method": "POST"
  // → sendBody becomes visible
}
```

```javascript
{
  "method": "POST",
  "sendBody": true
  // → body field becomes visible AND required
}
```

```javascript
{
  "method": "POST",
  "sendBody": true,
  "body": {
    "contentType": "json"
    // → content field becomes visible AND required
  }
}
```

```javascript
{
  "method": "POST",
  "sendBody": true,
  "body": {
    "contentType": "json",
    "content": {
      "name": "John",
      "email": "john@example.com"
    }
  }
}
// ✅ Valid!
```

--------------------------------

### Validate Webhook Data

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/webhook_processing.md

Example condition for an IF node to verify required fields in the webhook body.

```javascript
// IF node condition
{{$json.body.email}} is not empty AND
{{$json.body.name}} is not empty
```

--------------------------------

### Configure Retry Logic

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/ERROR_CATALOG.md

Example warning for missing retry logic in external API calls.

```json
{
  "type": "best_practice",
  "property": "retryOnFail",
  "message": "External API calls should retry on failure",
  "suggestion": "Add retryOnFail: true, maxTries: 3, waitBetweenTries: 1000"
}
```

--------------------------------

### Python Beta vs Native Execution

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-python/SKILL.md

Comparison of syntax and helper availability between Python Beta and Native modes.

```python
# Python (Beta) example
items = _input.all()
now = _now  # Built-in datetime object

return [{
    "json": {
        "count": len(items),
        "timestamp": now.isoformat()
    }
}]
```

```python
# Python (Native) example
processed = []

for item in _items:
    processed.append({
        "json": {
            "id": item["json"].get("id"),
            "processed": True
        }
    })

return processed
```

--------------------------------

### Invalid HTTP Method Error Example

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/ERROR_CATALOG.md

Shows how to resolve an invalid HTTP method error.

```json
{
  "type": "invalid_value",
  "property": "method",
  "message": "Method must be one of: GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS",
  "current": "FETCH",
  "allowed": ["GET", "POST", "PUT", "PATCH", "DELETE", "HEAD", "OPTIONS"]
}
```

```javascript
{
  "method": "FETCH",  // ❌ Invalid
  "url": "https://api.example.com"
}
```

```javascript
{
  "method": "GET",  // ✅ Use valid HTTP method
  "url": "https://api.example.com"
}
```

--------------------------------

### Known n8n Issue Warnings

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/FALSE_POSITIVES.md

Examples of common false-positive warnings encountered in n8n workflows.

```json
{
  "type": "metadata_incomplete",
  "message": "IF node missing conditions.options metadata",
  "node": "IF"
}
```

```json
{
  "type": "configuration_mismatch",
  "message": "Switch has 3 rules but 4 output connections",
  "node": "Switch"
}
```

```json
{
  "type": "credentials_invalid",
  "message": "Cannot validate credentials without execution context"
}
```

--------------------------------

### Example validation response structure

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/VALIDATION_GUIDE.md

The structure of a validation response containing errors, warnings, and a summary.

```javascript
{
  "nodeType": "nodes-base.slack",
  "workflowNodeType": "n8n-nodes-base.slack",
  "displayName": "Slack",
  "valid": false,
  "errors": [
    {
      "type": "missing_required",
      "property": "name",
      "message": "Channel name is required",
      "fix": "Provide a channel name (lowercase, no spaces, 1-80 characters)"
    }
  ],
  "warnings": [
    {
      "type": "best_practice",
      "property": "errorHandling",
      "message": "Slack API can have rate limits",
      "suggestion": "Add onError: 'continueRegularOutput' with retryOnFail"
    }
  ],
  "suggestions": [],
  "summary": {
    "hasErrors": true,
    "errorCount": 1,
    "warningCount": 1,
    "suggestionCount": 0
  }
}
```

--------------------------------

### Unmatched Expression Bracket Errors

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-javascript/ERROR_PATTERNS.md

Examples of syntax errors involving quotes and brackets, and their corrections.

```javascript
// ❌ WRONG: Unescaped quote in string
const message = "It's a nice day";
// Single quote breaks string
```

```javascript
// ❌ WRONG: Unbalanced brackets in regex
const pattern = /\{(\w+)\}/;  // JSON storage issue
```

```javascript
// ❌ WRONG: Multi-line string with quotes
const html = "
  <div class="container">
    <p>Hello</p>
  </div>
";
// Quote balance issues
```

```javascript
// ✅ CORRECT: Escape quotes
const message = "It\'s a nice day";
// Or use different quotes
const message = "It's a nice day";  // Double quotes work
```

```javascript
// ✅ CORRECT: Escape regex properly
const pattern = /\\{(\\w+)\\}/;
```

```javascript
// ✅ CORRECT: Template literals for multi-line
const html = `
  <div class="container">
    <p>Hello</p>
  </div>
`;
// Backticks handle multi-line and quotes
```

```javascript
// ✅ CORRECT: Escape backslashes
const path = "C:\\\\Users\\\\Documents\\\\file.txt";
```

--------------------------------

### Invalid Operation Value Error Example

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/ERROR_CATALOG.md

Demonstrates an invalid operation value error and the correct configuration.

```json
{
  "type": "invalid_value",
  "property": "operation",
  "message": "Operation must be one of: post, update, delete, get",
  "current": "send",
  "allowed": ["post", "update", "delete", "get"]
}
```

```javascript
{
  "resource": "message",
  "operation": "send"  // ❌ Invalid - should be "post"
}
```

```javascript
{
  "resource": "message",
  "operation": "post"  // ✅ Use valid operation
}
```

--------------------------------

### Format Dates

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-javascript/BUILTIN_FUNCTIONS.md

Demonstrates various output formats including ISO, SQL, HTTP, and custom string patterns.

```javascript
const now = DateTime.now();

return [{
  json: {
    isoFormat: now.toISO(),  // ISO 8601: "2025-01-20T15:30:00.000Z"
    sqlFormat: now.toSQL(),  // SQL: "2025-01-20 15:30:00.000"
    httpFormat: now.toHTTP(),  // HTTP: "Mon, 20 Jan 2025 15:30:00 GMT"

    // Custom formats
    dateOnly: now.toFormat('yyyy-MM-dd'),  // "2025-01-20"
    timeOnly: now.toFormat('HH:mm:ss'),  // "15:30:00"
    readable: now.toFormat('MMMM dd, yyyy'),  // "January 20, 2025"
    compact: now.toFormat('yyyyMMdd'),  // "20250120"
    withDay: now.toFormat('EEEE, MMMM dd, yyyy'),  // "Monday, January 20, 2025"
    custom: now.toFormat('dd/MM/yy HH:mm')  // "20/01/25 15:30"
  }
}];
```

--------------------------------

### Schedule Daily at Specific Time (Minimal)

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/OPERATION_PATTERNS.md

Configure a rule to run a task daily at a specific hour and minute. Always set the timezone explicitly to avoid unexpected behavior.

```javascript
{
  "rule": {
    "interval": [
      {
        "field": "hours",
        "hoursInterval": 24
      }
    ],
    "hour": 9,
    "minute": 0,
    "timezone": "America/New_York"
  }
}
```

--------------------------------

### Use Smart Parameters for Node Connections

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Employ smart parameters like 'branch' and 'case' for clearer and more readable node connections, especially for multi-output nodes like IF and Switch.

```javascript
// IF node connection
{
  type: "addConnection",
  source: "IF",
  target: "Handler",
  sourceIndex: 0  // Which output? Hard to remember!
}
```

```javascript
// IF node - semantic branch names
{
  type: "addConnection",
  source: "IF",
  target: "True Handler",
  branch: "true"  // Clear and readable!
}
```

```javascript
{
  type: "addConnection",
  source: "IF",
  target: "False Handler",
  branch: "false"
}
```

```javascript
// Switch node - semantic case numbers
{
  type: "addConnection",
  source: "Switch",
  target: "Handler A",
  case: 0
}
```

--------------------------------

### Using Environment Variables for Paths in n8n

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/webhook_processing.md

Demonstrates the correct practice of using environment variables for dynamic paths, such as webhook prefixes, to manage different environments (dev/prod).

```javascript
{{$env.WEBHOOK_PATH_PREFIX}}/form-submit
```

--------------------------------

### Resolve invalid_value error

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/SKILL.md

Example of identifying and fixing an invalid value error by updating to an allowed option.

```javascript
// Error
{
  "type": "invalid_value",
  "property": "operation",
  "message": "Operation must be one of: post, update, delete",
  "current": "send"
}

// Fix
config.operation = "post";  // Use valid operation
```

--------------------------------

### Connect Tools Correctly

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/ai_agent_workflow.md

Comparison of incorrect and correct tool connection methods in n8n.

```text
1. ❌ Wrong: Connecting tools to main port
HTTP Request → AI Agent  // Won't work as tool!

2. ✅ Correct: Use ai_tool connection type
HTTP Request --[ai_tool]--> AI Agent
```

--------------------------------

### Define best_practice warning structure

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/SKILL.md

Example of a validation warning object suggesting a best practice improvement.

```json
{
  "type": "best_practice",
  "property": "errorHandling",
  "message": "Slack API can have rate limits",
  "suggestion": "Add onError: 'continueRegularOutput' with retryOnFail"
}
```

--------------------------------

### Define missing_required error structure

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-validation-expert/SKILL.md

Example of a validation error object indicating a missing required property.

```json
{
  "type": "missing_required",
  "property": "channel",
  "message": "Channel name is required",
  "fix": "Provide a channel name (lowercase, no spaces, 1-80 characters)"
}
```

--------------------------------

### Clean Stale Connections in n8n

Source: https://context7.com/wilkomarketing/antigravity-n8n-skills/llms.txt

Provides an example of using `n8n_update_partial_workflow` with the `cleanStaleConnections` operation as a recovery strategy.

```javascript
// CLEAN STALE CONNECTIONS (recovery strategy)
n8n_update_partial_workflow({
  id: "workflow-id",
  operations: [{type: "cleanStaleConnections"}]
})

```

--------------------------------

### Implement Async Tools

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-workflow-patterns/ai_agent_workflow.md

Workflow pattern for handling slow tool operations without blocking the response.

```text
AI Agent → [Queue slow tool request]
       → Return immediate response
       → [Background: Execute tool + notify when done]
```

--------------------------------

### Optimizing `get_node` Detail Level in n8n

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Explains the performance implications of `detail: "full"` versus the default `detail: "standard"` for `get_node` and suggests alternatives for specific needs.

```javascript
// WRONG - Returns 3-8K tokens, use sparingly
get_node({nodeType: "nodes-base.slack", detail: "full"})

// CORRECT - Returns 1-2K tokens, covers 95% of use cases
get_node({nodeType: "nodes-base.slack"})  // detail="standard" is default
get_node({nodeType: "nodes-base.slack", detail: "standard"})
```

```javascript
1. `get_node({detail: "standard"})` - for operations list (default)
2. `get_node({mode: "docs"})` - for readable documentation
3. `get_node({mode: "search_properties", propertyQuery: "auth"})` - for specific property
```

--------------------------------

### Calculate Total from All Items

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-python/SKILL.md

Example of aggregating data across all input items in 'Run Once for All Items' mode.

```python
# Example: Calculate total from all items
all_items = _input.all()
total = sum(item["json"].get("amount", 0) for item in all_items)

return [{
    "json": {
        "total": total,
        "count": len(all_items),
        "average": total / len(all_items) if all_items else 0
    }
}]
```

--------------------------------

### Incorrect Code Node Return Patterns

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-javascript/ERROR_PATTERNS.md

Examples of invalid return structures that fail n8n validation.

```javascript
// ❌ WRONG: Returning object instead of array
return {
  json: {
    result: 'success'
  }
};
// Missing array wrapper []
```

```javascript
// ❌ WRONG: Returning array without json wrapper
return [
  {id: 1, name: 'Alice'},
  {id: 2, name: 'Bob'}
];
// Missing json property
```

```javascript
// ❌ WRONG: Returning plain value
return "processed";
```

```javascript
// ❌ WRONG: Returning items without mapping
return $input.all();
// Works if items already have json property, but not guaranteed
```

```javascript
// ❌ WRONG: Incomplete structure
return [{data: {result: 'success'}}];
// Should be {json: {...}}, not {data: {...}}
```

--------------------------------

### Deploy Template Directly

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Deploy a template to an n8n instance with optional configuration for naming and version management.

```javascript
// Deploy template to your n8n instance
n8n_deploy_template({
  templateId: 2947,
  name: "My Weather to Slack",  // Custom name (optional)
  autoFix: true,  // Auto-fix common issues (default)
  autoUpgradeVersions: true  // Upgrade node versions (default)
});
// Returns: workflow ID, required credentials, fixes applied
```

--------------------------------

### Workflow Template Expressions

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-expression-syntax/EXAMPLES.md

Examples of referencing webhook data and other node outputs in a real-world workflow context.

```json
{
  "body": {
    "text": "London"
  }
}
```

```text
https://nominatim.openstreetmap.org/search?q={{$json.body.text}}&format=json
```

```text
https://api.weather.gov/points/{{$node["OpenStreetMap"].json[0].lat}},{{$node["OpenStreetMap"].json[0].lon}}
```

```text
Weather for {{$json.body.text}}:

Temperature: {{$node["Weather API"].json.properties.temperature.value}}°C
Conditions: {{$node["Weather API"].json.properties.shortForecast}}
```

--------------------------------

### Get Emails

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-node-configuration/OPERATION_PATTERNS.md

Retrieve emails using the Gmail node. Can fetch all emails or a limited number with specific filters.

```javascript
{
  "resource": "message",
  "operation": "getAll",
  "returnAll": false,
  "limit": 10
}
```

```javascript
{
  "resource": "message",
  "operation": "getAll",
  "returnAll": false,
  "limit": 50,
  "filters": {
    "q": "is:unread from:important@example.com",
    "labelIds": ["INBOX"]
  }
}
```

--------------------------------

### Get Template Details

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-mcp-tools-expert/SKILL.md

Retrieve specific template details by ID, choosing between structure-only or full workflow JSON.

```javascript
get_template({
  templateId: 2947,
  mode: "structure"  // nodes+connections only
});

get_template({
  templateId: 2947,
  mode: "full"  // complete workflow JSON
});
```

--------------------------------

### Python: Standard Library - Date/Time Operations

Source: https://github.com/wilkomarketing/antigravity-n8n-skills/blob/main/n8n-code-python/SKILL.md

Demonstrates how to get the current date and time using `datetime.now()`, add time deltas using `timedelta`, and format dates into strings with `strftime()`.

```python
# Date/time
from datetime import datetime, timedelta
now = datetime.now()
tomorrow = now + timedelta(days=1)
formatted = now.strftime("%Y-%m-%d")
```
Tokens:
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