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YouTube Video Optimization & Cross-Platform Distribution with GPT-4o
https://n8nworkflows.xyz/workflows/youtube-video-optimization---cross-platform-distribution-with-gpt-4o-11797
# YouTube Video Optimization & Cross-Platform Distribution with GPT-4o
### 1. Workflow Overview
This workflow automates the post-publication process for YouTube videos with a focus on SEO optimization, competitor analysis, cross-platform promotion, and engagement monitoring. It targets content creators and digital marketers who want to enhance YouTube video visibility and streamline multi-channel distribution while maintaining analytics and feedback loops.
The workflow is logically divided into the following blocks:
- **1.1 Trigger & Configuration**: Receives new video publish events and loads environment variables and shared settings.
- **1.2 Video Metadata Intake**: Fetches detailed video metadata from YouTube and prepares context for SEO and comparison.
- **1.3 Competitor & Trend Data Retrieval**: Gathers competitor and trending topic data via external APIs for enriched context.
- **1.4 AI-Powered SEO Asset Generation**: Uses GPT-4o to generate SEO-optimized title variations, descriptions, and tags.
- **1.5 SEO Scoring & A/B Title Selection**: Scores the SEO assets and selects an A/B test variant for the video title.
- **1.6 YouTube Metadata Update**: Updates the YouTube video with selected SEO-optimized metadata.
- **1.7 Clip & Thumbnail Processing**: If the video length exceeds a threshold, runs thumbnail analysis and clip extraction.
- **1.8 Cross-Platform Content Generation & Publishing**: Creates and formats promotional posts per platform and publishes them.
- **1.9 Comments Monitoring & Response**: Fetches video comments, uses AI to generate responses, detects negative comments, and logs details.
- **1.10 Analytics Aggregation & Reporting**: Runs scheduled weekly analytics aggregation, calculates engagement and viral potential, logs insights, and sends email reports.
- **1.11 Notifications & Logging**: Sends Slack alerts for new videos and viral potential, and logs video, comments, and analytics data to Google Sheets.
---
### 2. Block-by-Block Analysis
#### 1.1 Trigger & Configuration
- **Overview:** Listens for new YouTube video publish events via webhook; loads environment variables and IDs for workflow-wide use.
- **Nodes Involved:**
- `Video Published Webhook`
- `Workflow Configuration`
- Sticky Note: "Triggers & Configuration"
- **Node Details:**
- **Video Published Webhook**
- Type: Webhook (HTTP receive)
- Role: Entry trigger for new published video event
- Configuration: Receives HTTP POST at path `dffce599-768d-4471-a26e-3da64e7aded0`
- Inputs: External YouTube publish event
- Outputs: Passes videoId, channelId, etc.
- Failures: Missing or malformed webhook payload, network issues
- **Workflow Configuration**
- Type: Set node
- Role: Load and assign environment variables (API URLs, keys, IDs) and webhook data into workflow context for reuse
- Key expressions: Assigns values from `$json` and `$env` variables
- Inputs: From webhook
- Outputs: Provides configuration context downstream
- Failures: Missing environment variables cause incomplete config
---
#### 1.2 Video Metadata Intake
- **Overview:** Retrieves detailed video metadata (title, description, tags, statistics, duration) from YouTube API and prepares SEO prompt data.
- **Nodes Involved:**
- `Get Video Details`
- `Prepare SEO Prompts`
- Sticky Note: "Video Intake"
- **Node Details:**
- **Get Video Details**
- Type: YouTube node
- Role: Fetch video snippet, statistics, and content details using videoId
- Configuration: `operation=get`, `resource=video`, parts requested: snippet, statistics, contentDetails
- Inputs: videoId from `Workflow Configuration`
- Outputs: Full video metadata JSON
- Failures: API quota exceeded, invalid videoId
- **Prepare SEO Prompts**
- Type: Set node
- Role: Extracts and simplifies video metadata into variables: title, description, tags, view count, duration
- Inputs: Video metadata JSON
- Outputs: Context for competitor and trending data fetch
- Failures: Unexpected metadata structure
---
#### 1.3 Competitor & Trend Data Retrieval
- **Overview:** Fetches competitor video data and trending topic keywords from external APIs using authenticated HTTP requests.
- **Nodes Involved:**
- `Fetch Competitor Data`
- `Fetch Trending Topics`
- `Competitor Comparison` (merges data)
- Sticky Note: "Competitor & Trend Signals"
- **Node Details:**
- **Fetch Competitor Data**
- Type: HTTP Request
- Role: Pull competitor data relevant to current video title
- Configuration: GET with `topic` query, Bearer token authentication header
- Inputs: videoTitle from `Prepare SEO Prompts`
- Outputs: Competitor data JSON
- Failures: API timeout, auth failure
- **Fetch Trending Topics**
- Type: HTTP Request
- Role: Retrieve trending keywords based on video category
- Configuration: GET with `category` query, Bearer token authentication
- Inputs: snippet.categoryId from video metadata
- Outputs: Trending topics JSON
- Failures: API timeout, auth failure
- **Competitor Comparison**
- Type: Code
- Role: Combines video metadata with competitor and trending data into unified context object
- Inputs: Outputs from competitor and trending APIs and video metadata
- Outputs: Combined JSON for AI SEO generation
- Failures: Missing competitor or trending data (handled by defaults)
---
#### 1.4 AI-Powered SEO Asset Generation
- **Overview:** Uses GPT-4o to generate SEO-optimized title variations, video description, and tags based on combined context.
- **Nodes Involved:**
- `Generate Title Variations`
- `Generate SEO Description`
- `Generate Tags`
- `Merge SEO Data` (combine outputs)
- Sticky Note: "Generate SEO Assets (AI)"
- **Node Details:**
- **Generate Title Variations**
- Type: OpenAI (LangChain)
- Role: Generate 3 SEO-optimized YouTube title variants from original title, competitor titles, and trending keywords
- Configuration: Prompt template with JSON output structure `{ "titles": [...] }`
- Inputs: Combined competitor/trending/video data
- Outputs: JSON array of titles
- Failures: OpenAI API errors, invalid JSON parse
- **Generate SEO Description**
- Type: OpenAI (LangChain)
- Role: Generate keyword-rich, engaging video description (150-200 words)
- Configuration: Prompt requesting JSON `{ "description": "..." }`
- Inputs: Original description + trending keywords
- Outputs: SEO description JSON
- Failures: OpenAI API errors, invalid JSON parse
- **Generate Tags**
- Type: OpenAI (LangChain)
- Role: Generate 10-15 SEO tags
- Configuration: Prompt requesting JSON `{ "tags": [...] }`
- Inputs: Video title + trending keywords
- Outputs: Tag array JSON
- Failures: OpenAI API errors, invalid JSON parse
- **Merge SEO Data**
- Type: Merge node (combine)
- Role: Combines outputs from title, description, and tags generation into one payload
- Inputs: Outputs of the three AI nodes
- Outputs: Consolidated SEO asset JSON
- Failures: Mismatch in inputs, partial data
---
#### 1.5 SEO Scoring & A/B Title Selection
- **Overview:** Scores SEO assets based on criteria and selects an A/B test variant for the video title.
- **Nodes Involved:**
- `Calculate SEO Score`
- `A/B Title Routing Logic`
- `A/B Test Variant Selection`
- `Set Variant B Data`
- Sticky Note: "SEO Scoring & A/B Selection"
- **Node Details:**
- **Calculate SEO Score**
- Type: Code node
- Role: Parses AI responses, evaluates SEO quality (title count, description length, tag count), assigns grade A-D
- Inputs: Merged SEO data + original metadata
- Outputs: SEO score, grade, parsed SEO assets
- Failures: Invalid JSON parsing, missing fields
- **A/B Title Routing Logic**
- Type: Code node
- Role: Deterministically selects A or B variant based on videoId hash
- Logic: If variant A, selects first title variation; else defaults to original title
- Outputs: Variant label and selected title
- Failures: Missing title variations
- **A/B Test Variant Selection**
- Type: If node
- Role: Routes flow based on variant (A or B)
- Outputs: Variant A continues; Variant B triggers `Set Variant B Data`
- **Set Variant B Data**
- Type: Set node
- Role: Sets variant to B and selects second title variation if available, else original title
- Outputs: Updated title for variant B
---
#### 1.6 YouTube Metadata Update
- **Overview:** Updates the YouTube video metadata (title, description, tags) with SEO-optimized data.
- **Nodes Involved:**
- `Update Video Metadata`
- Sticky Note: "Update YouTube Metadata"
- **Node Details:**
- **Update Video Metadata**
- Type: YouTube node
- Role: Performs video update operation with selected title, SEO description, and tags
- Inputs: Selected title, SEO description, SEO tags, videoId
- Outputs: Confirmation from YouTube API
- Failures: API quota limits, invalid metadata, network errors
---
#### 1.7 Clip & Thumbnail Processing
- **Overview:** For videos longer than 10 minutes, runs thumbnail analysis and clip extraction to generate promotional assets.
- **Nodes Involved:**
- `Check Video Length` (If node)
- `Thumbnail Analysis API`
- `Clip Extraction Service`
- `Prepare Cross-Platform Context`
- Sticky Note: "Clip & Thumbnail Processing"
- **Node Details:**
- **Check Video Length**
- Type: If node
- Role: Checks if video duration is greater than 10 minutes (ISO 8601 duration format)
- Inputs: Duration from updated metadata
- Outputs: Triggers thumbnail and clip processing if true
- Failures: Incorrect duration format
- **Thumbnail Analysis API**
- Type: HTTP Request
- Role: Sends videoId and thumbnail URL to external service for thumbnail scoring
- Inputs: videoId, max resolution thumbnail URL
- Outputs: Thumbnail score and related data
- Failures: API timeout, auth failure
- **Clip Extraction Service**
- Type: HTTP Request
- Role: Requests video clip extraction based on videoId and duration
- Inputs: videoId, duration string
- Outputs: Clip URL for promo use
- Failures: API timeout, auth failure
- **Prepare Cross-Platform Context**
- Type: Set node
- Role: Prepares data for social post generation including video URL, clip URL, and thumbnail score
- Outputs: Context for cross-platform content AI generation
---
#### 1.8 Cross-Platform Content Generation & Publishing
- **Overview:** Generates platform-specific promotional posts using AI, formats posts, checks platform availability, and publishes to multiple channels.
- **Nodes Involved:**
- `Generate Cross-Platform Content1` (OpenAI GPT-4o)
- `Format Platform Posts` (Set node)
- `Check Platform Availability` (If node)
- Social Posting Nodes:
- `Post to LinkedIn`
- `Post Twitter Thread`
- `Upload Instagram Reel`
- `Post to Facebook Group`
- Sticky Note: "Cross-Platform Promotion"
- **Node Details:**
- **Generate Cross-Platform Content1**
- Type: OpenAI (LangChain)
- Role: Generates JSON containing post texts optimized per platform (LinkedIn, Twitter, Instagram, TikTok, Facebook)
- Inputs: Video title, URL, clip URL, thumbnail score
- Outputs: JSON with platform posts
- Failures: OpenAI errors, JSON parse errors
- **Format Platform Posts**
- Type: Set node
- Role: Extracts and formats the posts from AI JSON to individual fields per platform
- Outputs: Separate fields for each platform post content
- **Check Platform Availability**
- Type: If node
- Role: Checks which social media posts are non-empty and only publishes to those platforms
- Outputs: Branches to post nodes only if content exists
- **Post to LinkedIn**
- Type: LinkedIn node
- Role: Posts the LinkedIn post text as the authenticated user
- Inputs: linkedinPost text, LinkedIn person ID credential
- Failures: API auth errors, rate limits
- **Post Twitter Thread**
- Type: Twitter node
- Role: Posts Twitter thread content
- Inputs: twitterPost text, configured Twitter credentials
- Failures: API limits, auth errors
- **Upload Instagram Reel**
- Type: Facebook Graph API node
- Role: Uploads Instagram Reel media post
- Inputs: Instagram account ID, post content
- Failures: API permission errors
- **Post to Facebook Group**
- Type: Facebook Graph API node
- Role: Posts to specified Facebook group
- Inputs: Facebook group ID, post content
- Failures: API auth, permission errors
---
#### 1.9 Comments Monitoring & Response
- **Overview:** Retrieves recent video comments, generates AI responses, detects negative comments, sends alerts, and logs data for monitoring.
- **Nodes Involved:**
- `Fetch Video Comments`
- `Generate Comment Responses1` (OpenAI)
- `Detect Negative Comments` (If node)
- `Slack - Viral Potential Alert`
- `Log Comments` (Google Sheets)
- Sticky Note: "Comments Monitoring & Logging"
- **Node Details:**
- **Fetch Video Comments**
- Type: YouTube node
- Role: Fetches video comments
- Inputs: Video ID
- Outputs: List of comments
- **Generate Comment Responses1**
- Type: OpenAI (LangChain)
- Role: Analyzes comments, generates response suggestions, flags toxic/negative comments
- Outputs: JSON with responses array and negative flags
- **Detect Negative Comments**
- Type: If node
- Role: Checks if any comment is flagged negative
- Outputs:
- If negative comments detected: triggers Slack alert and logs comments
- Else: only logs comments
- **Slack - Viral Potential Alert**
- Type: Slack node
- Role: Sends alert message to Slack channel about viral potential and negative comments
- **Log Comments**
- Type: Google Sheets node
- Role: Appends comment responses and metadata to comments tracking sheet using service account authentication
---
#### 1.10 Analytics Aggregation & Reporting
- **Overview:** Runs a weekly scheduled trigger to fetch analytics data, compute engagement and viral potential scores, log insights, and email a detailed report.
- **Nodes Involved:**
- `Weekly Analytics Schedule`
- `Fetch Video Analytics`
- `Aggregate Analytics Data`
- `Calculate Engagement Score`
- `Detect High Engagement` (If)
- `Check Viral Potential` (If)
- `Generate Weekly Report1` (OpenAI)
- `Log Strategic Insights` (Google Sheets)
- `Send Email Newsletter` (SendGrid)
- Sticky Note: "Weekly Analytics & Reporting"
- **Node Details:**
- **Weekly Analytics Schedule**
- Type: Schedule Trigger
- Role: Fires every Monday at 9:00 AM weekly
- **Fetch Video Analytics**
- Type: YouTube node
- Role: Fetches latest video statistics and content details
- **Aggregate Analytics Data**
- Type: Code node
- Role: Parses and aggregates analytics data; provides defaults if missing
- **Calculate Engagement Score**
- Type: Code node
- Role: Computes engagement rate and assigns grade (High/Medium/Low)
- **Detect High Engagement**
- Type: If node
- Role: Branches flow if engagement grade is High
- **Check Viral Potential**
- Type: If node
- Role: Checks if views exceed 10,000 to detect viral potential
- **Generate Weekly Report1**
- Type: OpenAI (LangChain)
- Role: Creates detailed HTML report and summary based on analytics data
- **Log Strategic Insights**
- Type: Google Sheets
- Role: Logs weekly analytics metrics and viral potential to sheet
- **Send Email Newsletter**
- Type: SendGrid node
- Role: Sends the weekly YouTube analytics report email
---
#### 1.11 Notifications & Logging
- **Overview:** Sends Slack alerts on video publish and viral potential; logs video metadata and analytics to Google Sheets.
- **Nodes Involved:**
- `Slack - Video Published Alert`
- `Slack - Viral Potential Alert`
- `Log to Video Database`
- `Log Strategic Insights`
- Sticky Notes: "Alerts & Notifications", "Storage (Video Database)"
- **Node Details:**
- **Slack - Video Published Alert**
- Type: Slack node
- Role: Notifies Slack channel immediately after metadata update
- Message includes video title, SEO score, A/B variant, and URL
- **Log to Video Database**
- Type: Google Sheets
- Role: Appends video record with SEO score, variant, publish date, and selected title
- **Log Strategic Insights**
- Type: Google Sheets
- Role: Logs analytics insights (likes, views, comments, engagement score, viral potential)
---
### 3. Summary Table
| Node Name | Node Type | Functional Role | Input Node(s) | Output Node(s) | Sticky Note |
|-----------------------------|---------------------------|-----------------------------------------|--------------------------------|---------------------------------------|------------------------------------------------------------------------------------------------|
| Video Published Webhook | Webhook | Trigger on new YouTube video publish | - | Workflow Configuration | Triggers & Configuration |
| Workflow Configuration | Set | Load env vars and initial variables | Video Published Webhook | Get Video Details | Triggers & Configuration |
| Get Video Details | YouTube | Fetch video metadata | Workflow Configuration | Prepare SEO Prompts | Video Intake |
| Prepare SEO Prompts | Set | Extract video data for SEO context | Get Video Details | Fetch Competitor Data, Fetch Trending Topics | Video Intake |
| Fetch Competitor Data | HTTP Request | Retrieve competitor signals | Prepare SEO Prompts | Competitor Comparison | Competitor & Trend Signals |
| Fetch Trending Topics | HTTP Request | Retrieve trending keywords | Prepare SEO Prompts | Competitor Comparison | Competitor & Trend Signals |
| Competitor Comparison | Code | Merge competitor and trending data | Fetch Competitor Data, Fetch Trending Topics | Generate Title Variations, Generate SEO Description, Generate Tags | Competitor & Trend Signals |
| Generate Title Variations | OpenAI LangChain | Create SEO title variants | Competitor Comparison | Merge SEO Data | Generate SEO Assets (AI) |
| Generate SEO Description | OpenAI LangChain | Create SEO video description | Competitor Comparison | Merge SEO Data | Generate SEO Assets (AI) |
| Generate Tags | OpenAI LangChain | Create SEO tags | Competitor Comparison | Merge SEO Data | Generate SEO Assets (AI) |
| Merge SEO Data | Merge | Combine SEO assets | Generate Title Variations, Generate SEO Description, Generate Tags | Calculate SEO Score | Generate SEO Assets (AI) |
| Calculate SEO Score | Code | Score SEO assets and parse AI responses | Merge SEO Data | A/B Title Routing Logic | SEO Scoring & A/B Selection |
| A/B Title Routing Logic | Code | Select A/B test variant and title | Calculate SEO Score | A/B Test Variant Selection | SEO Scoring & A/B Selection |
| A/B Test Variant Selection | If | Route based on variant (A or B) | A/B Title Routing Logic | Update Video Metadata, Set Variant B Data | SEO Scoring & A/B Selection |
| Set Variant B Data | Set | Set variant B title | A/B Test Variant Selection | Update Video Metadata | SEO Scoring & A/B Selection |
| Update Video Metadata | YouTube | Update YouTube video metadata | A/B Test Variant Selection, Set Variant B Data | Check Video Length, Log to Video Database, Slack - Video Published Alert, Fetch Video Comments | Update YouTube Metadata |
| Check Video Length | If | Check if video duration > 10 minutes | Update Video Metadata | Thumbnail Analysis API, Clip Extraction Service | Clip & Thumbnail Processing |
| Thumbnail Analysis API | HTTP Request | Analyze thumbnail quality | Check Video Length | Prepare Cross-Platform Context | Clip & Thumbnail Processing |
| Clip Extraction Service | HTTP Request | Extract video clips/shorts | Check Video Length | Prepare Cross-Platform Context | Clip & Thumbnail Processing |
| Prepare Cross-Platform Context | Set | Prepare data for social post generation | Thumbnail Analysis API, Clip Extraction Service | Generate Cross-Platform Content1 | Clip & Thumbnail Processing |
| Generate Cross-Platform Content1 | OpenAI LangChain | Generate social media posts per platform | Prepare Cross-Platform Context | Format Platform Posts | Cross-Platform Promotion |
| Format Platform Posts | Set | Format AI JSON posts into platform fields | Generate Cross-Platform Content1 | Check Platform Availability | Cross-Platform Promotion |
| Check Platform Availability | If | Check if posts exist for each platform | Format Platform Posts | Post to LinkedIn, Post Twitter Thread, Upload Instagram Reel, Post to Facebook Group, Send Email Newsletter | Cross-Platform Promotion |
| Post to LinkedIn | LinkedIn | Publish post to LinkedIn | Check Platform Availability | - | Cross-Platform Promotion |
| Post Twitter Thread | Twitter | Publish Twitter thread | Check Platform Availability | - | Cross-Platform Promotion |
| Upload Instagram Reel | Facebook Graph API | Post Instagram reel | Check Platform Availability | - | Cross-Platform Promotion |
| Post to Facebook Group | Facebook Graph API | Post to Facebook group | Check Platform Availability | - | Cross-Platform Promotion |
| Send Email Newsletter | SendGrid | Send email with weekly report | Check Platform Availability | - | Cross-Platform Promotion |
| Fetch Video Comments | YouTube | Retrieve video comments | Update Video Metadata | Generate Comment Responses1 | Comments Monitoring & Logging |
| Generate Comment Responses1 | OpenAI LangChain | Analyze comments, generate responses | Fetch Video Comments | Detect Negative Comments | Comments Monitoring & Logging |
| Detect Negative Comments | If | Check presence of negative comments | Generate Comment Responses1 | Slack - Viral Potential Alert, Log Comments | Comments Monitoring & Logging |
| Slack - Viral Potential Alert | Slack | Notify Slack channel of viral/negatives | Detect Negative Comments | - | Alerts & Notifications |
| Log Comments | Google Sheets | Log comment responses and metadata | Detect Negative Comments | - | Comments Monitoring & Logging |
| Log to Video Database | Google Sheets | Log video metadata and SEO score | Update Video Metadata | - | Storage (Video Database) |
| Weekly Analytics Schedule | Schedule Trigger | Weekly trigger for analytics processing | - | Fetch Video Analytics | Weekly Analytics & Reporting |
| Fetch Video Analytics | YouTube | Retrieve video statistics | Weekly Analytics Schedule | Aggregate Analytics Data | Weekly Analytics & Reporting |
| Aggregate Analytics Data | Code | Aggregate and clean analytics data | Fetch Video Analytics | Calculate Engagement Score | Weekly Analytics & Reporting |
| Calculate Engagement Score | Code | Compute engagement rate and grade | Aggregate Analytics Data | Detect High Engagement | Weekly Analytics & Reporting |
| Detect High Engagement | If | Branch if engagement is high | Calculate Engagement Score | Check Viral Potential | Weekly Analytics & Reporting |
| Check Viral Potential | If | Detect viral video by view count | Detect High Engagement | Generate Weekly Report1 | Weekly Analytics & Reporting |
| Generate Weekly Report1 | OpenAI LangChain | Generate weekly analytics report | Check Viral Potential | Log Strategic Insights | Weekly Analytics & Reporting |
| Log Strategic Insights | Google Sheets | Append analytics insights to sheet | Generate Weekly Report1 | Send Email Newsletter | Weekly Analytics & Reporting |
| Slack - Video Published Alert | Slack | Notify Slack on video publish | Update Video Metadata | - | Alerts & Notifications |
---
### 4. Reproducing the Workflow from Scratch
1. **Create Webhook Trigger Node**
- Type: Webhook
- Path: `dffce599-768d-4471-a26e-3da64e7aded0`
- Purpose: Receive video published event with videoId and channelId
2. **Create Configuration Set Node**
- Type: Set
- Purpose: Assign variables from webhook JSON and environment variables for all API keys, URLs, IDs (YouTube, competitor APIs, social platforms, Google Sheets, Slack, SendGrid)
- Include all environment variables as per the original
3. **Create YouTube Node to Fetch Video Details**
- Operation: `get`
- Resource: `video`
- Parts: `snippet, statistics, contentDetails`
- Video ID: from webhook (`videoId`)
4. **Create Set Node to Prepare SEO Prompts**
- Extract title, description, tags, view count, duration from previous node output
5. **Create HTTP Request Nodes to Fetch Competitor Data and Trending Topics**
- Auth: HTTP Header Bearer Token
- URLs and keys from environment config
- Query Parameters: `topic` (video title), `category` (video categoryId)
6. **Create Code Node to Merge Competitor, Trending, and Video Data**
- Combine inputs into unified JSON object with fields for AI SEO generation
7. **Create OpenAI Nodes for SEO Asset Generation** (3 Nodes)
- Model: GPT-4o
- Use prompts to generate:
a) Title variations (3 titles)
b) SEO description (150-200 words)
c) SEO tags (10-15 tags)
- Configure JSON-only outputs per prompt instructions
8. **Create Merge Node**
- Combine AI outputs by position into single payload
9. **Create Code Node for SEO Scoring**
- Parse AI JSON outputs and calculate SEO score based on number of titles, description length, tag count
- Assign grade (A-D)
10. **Create Code Node for A/B Title Routing Logic**
- Hash videoId to select variant A or B
- For A variant, select first title variation; for B, keep original title
11. **Create If Node for A/B Variant Selection**
- If variant A: continue
- If variant B: route to Set Node
12. **Create Set Node for Variant B Data**
- Set variant to B and select second title variation if available, else original title
13. **Create YouTube Node to Update Video Metadata**
- Operation: `update`
- Update fields: title (selected), description, tags
- Video ID from context
14. **Create If Node to Check Video Length > 10m**
- Condition: duration string greater than `PT10M`
15. **Create HTTP Request Nodes for Thumbnail Analysis and Clip Extraction**
- POST requests with videoId and thumbnail or duration
- Auth with respective API keys
16. **Create Set Node to Prepare Cross-Platform Context**
- Include video URL, clip URL, thumbnail score
17. **Create OpenAI Node to Generate Cross-Platform Content**
- Model: GPT-4o
- Prompt to generate JSON with posts for LinkedIn, Twitter, Instagram, TikTok, Facebook
18. **Create Set Node to Format Platform Posts**
- Parse JSON string and assign individual post texts to respective fields
19. **Create If Node to Check Platform Availability**
- Confirm non-empty post text per platform for publishing
20. **Create Social Posting Nodes**
- LinkedIn node: post text and person ID
- Twitter node: post text
- Facebook Graph API nodes for Instagram Reel and Facebook Group posts
- Configure credentials accordingly
21. **Create YouTube Node to Fetch Video Comments**
- Resource: videoComment
- Video ID from context
22. **Create OpenAI Node to Generate Comment Responses**
- Analyze comments, generate responses, flag negatives in JSON output
23. **Create If Node to Detect Negative Comments**
- Condition: check for any flagged negative comment in response array
24. **Create Slack Node for Viral Potential Alert**
- Send message to Slack channel if negative comments detected or viral potential found
25. **Create Google Sheets Node to Log Comments**
- Append rows with comment IDs, responses, negative flags
- Authenticate with service account
26. **Create Google Sheets Node to Log Video Data**
- Append videoId, SEO score, variant, publish date, selected title
27. **Create Schedule Trigger Node for Weekly Analytics**
- Set to every Monday 9:00 AM weekly
28. **Create YouTube Node to Fetch Video Analytics**
- Parts: statistics, contentDetails
- Video ID from stored context or environment variable
29. **Create Code Node to Aggregate Analytics Data**
- Parse and normalize analytics JSON
30. **Create Code Node to Calculate Engagement Score and Grade**
- Compute engagement rate from views, likes, comments
31. **Create If Nodes to Detect High Engagement and Viral Potential**
- Engagement grade = High
- Views > 10,000
32. **Create OpenAI Node to Generate Weekly Report**
- Generate HTML and summary report from analytics data
33. **Create Google Sheets Node to Log Strategic Insights**
- Append engagement metrics, viral potential, timestamp
34. **Create SendGrid Node to Send Weekly Email Newsletter**
- From and to emails from configuration
35. **Create Slack Node to Alert on New Video Published**
- Sends immediate notification after metadata update with SEO score and variant info
---
### 5. General Notes & Resources
| Note Content | Context or Link |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------|
| This workflow automates the full post-publish process for YouTube videos including SEO, cross-platform promotion, and engagement monitoring. Setup requires connecting YouTube, OpenAI (GPT-4o), Slack, Google Sheets, SendGrid, and social media APIs. | Workflow description (Sticky Note) |
| The workflow uses environment variables extensively for API keys, URLs, and platform IDs; all must be configured before use. | Workflow Configuration notes |
| AI prompt outputs are strictly expected in JSON format with exact keys; any deviation can cause parsing errors—monitor OpenAI API usage and response formats. | AI nodes prompt instructions |
| Slack alerts provide immediate notification of new videos and viral potential, supporting timely monitoring by the content team. | Slack alert nodes |
| Google Sheets integration uses service account authentication for logging video metadata, comments, and analytics, allowing centralized tracking and reporting. | Google Sheets nodes |
| Weekly analytics report is generated as HTML email via SendGrid with strategic recommendations, enabling data-driven content strategy refinement. | Weekly report generation |
| Video length check uses ISO 8601 duration format; ensure input format correctness to avoid branch failures. | Duration check node |
| For social media publishing, enable only the platforms you use and configure credentials accordingly; unsupported platforms will be skipped by availability checks. | Cross-platform promotion nodes |
---
**Disclaimer:**
The text above is an analysis and documentation of an automated workflow created with n8n, adhering strictly to content policies. All data processed is legal and public.