AI Agents
Claude Haiku 5.5 AI Agents: Build Cheap, Fast Subagents
Use Claude Haiku 5.5 as the worker model in your AI agents: subagent routing, cost math, Claude Code and n8n setups, and quality checks.
N8n
n8n
How to Make n8n AI Agent Workflows Production Ready: A Reliability Checklist
Make an n8n AI agent production ready with guardrails for silent tool failures, timeout cascades, output drift, and runaway loops.
n8n
n8n Error Workflow Blind Spots: 4 Failures It Cannot Catch and How to Fix Them
Your n8n error workflow misses manual runs, Continue-marked successes, silent polling deaths, and its own failures. Here are the four blind spots and fixes.
n8n
n8n Publish Guardrails Tutorial: Stop Broken Workflows Before They Go Live
Use n8n 2.43.0 publish guardrails to block workflows with unconnected required inputs, enforce CLI policies, and fix a blocked publish before production breaks.
n8n
How to Migrate the n8n Perplexity Node to v3: Chat to Agent API Mapping
Sonar Chat retired on 2026-09-27. Migrate the n8n Perplexity node to the v3 Agent API: field mapping, preset equivalents, cost notes, and a rollback-safe plan.
n8n
n8n API Key Variable Scopes Tutorial: Least-Privilege Keys for Instance Variables
Give an n8n API key only the variable scopes it needs: create a scoped key, test variable list and create calls with curl, and fix 403 scope errors fast.
n8n
Fix n8n Dataverse Node 401 and 403 Errors (2026)
Fix n8n Microsoft Dataverse 401 and 403 errors: decode Entra AADSTS codes, repair client secrets, grant admin consent, and assign Dataverse security roles.
n8n
n8n S3 Binary Data Storage: Complete Tutorial (AWS, R2, Queue Mode, Lifecycle Rules)
Move n8n binary data off RAM and disk into Amazon S3. Setup with S3-compatible R2 config, queue-mode worker sync, lifecycle pruning, and the 2.6.4 region fix.
n8n
n8n External Secrets Tutorial: Connect HashiCorp Vault and AWS Secrets Manager
Connect n8n to external secret stores with hands-on HashiCorp Vault and AWS Secrets Manager walkthroughs, $secrets expressions, and per-project vault scoping.
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How to Fix n8n Gmail Trigger ETIMEDOUT on Self-Hosted n8n (Broken IPv6 Route)
Gmail Trigger ETIMEDOUT on self-hosted n8n? A broken IPv6 route is the usual cause. Diagnose and fix it with NODE_OPTIONS=--dns-result-order=ipv4first.