💡 Payload Optimization ProtocolTo maintain strict control over API token costs and protect downstream apps from breaking due to unexpected characters, I utilize custom inline JavaScript inside n8n Code Nodes to sanitize incoming webhooks before triggering LLM endpoints.

// Example: Sanitizing raw payload strings inside an n8n Code Node 
for (const item of $input.all()) {
  let rawReview = item.json.review_text || "";
  
  // Strip out HTML tags, excessive whitespace, and accidental line breaks
  let cleanReview = rawReview
    .replace(/<\/?[^>]+(>|$)/g, "") 
    .replace(/\s+/g, ' ')
    .trim();
    
  // Enforce a strict max length to protect client API token limits
  item.json.processed_review = cleanReview.slice(0, 1000);
}

return $input.all();

🛑 Uptime & Error Handling StrategyAll production workflows are backed by designated n8n Error Trigger sub-routines. If an LLM API rate limit or third-party endpoint timeouts occur, the system safely halts execution, captures the error object, updates the master database state, and fires an alert notification straight to the internal team's operational Slack channel.