AI Tools
How to Re-Enable Expression Spans in n8n 2.43.8
Upgraded to n8n 2.43.8 and lost expression.evaluate spans? Set one variable, restart every instance, and verify the spans return to your tracing backend.
Tutorials
Every tutorial below was tested hands-on before publishing. Pick your tool and follow along.
n8n
Fix n8n Wait Node Resume URL 401: Why the Signature Is Required and How to Pass It Through
Fix the n8n Wait node 401 on resume URLs: why the webhook-waiting signature is required, how to forward $execution.resumeUrl intact, and how to patch it.
AI Tools
Fix n8n Slack Trigger 401: Add the Signing Secret for n8n 3.0
Fix the n8n Slack Trigger 401 by adding your Slack app signing secret to the n8n credential before the n8n 3.0 upgrade, then re-verify the webhook.
AI Tools
How to Re-Enable Chat Hub in n8n 3.0: Restore the Chat Section After Upgrade
n8n 3.0 turns off Chat Hub by default. Re-enable it with N8N_ENABLED_MODULES, verify the Chat section returns, and plan migration before n8n 4.0 removes it.
AI Tools
How to Use unslop in Claude Code: Turn AI-Looking UI into a Designed Interface
Install the unslop skill in Claude Code, then run one vibecoded dashboard through its audit, direction, and ordered fix passes.
AI Tools
How to Trace Claude Managed Agents with OpenTelemetry: Console Destinations, Spans, and Cost Tracking
Trace Claude Managed Agents with OpenTelemetry: add a Console destination, read turn and tool spans, and track tokens and latency without changing agent code.
n8n
How to Harden Self-Hosted n8n for Teams After the October 2026 Security Advisories
Harden a shared self-hosted n8n instance after the October 2026 advisories: patch to 2.44.1, scope credentials by project, and lock nodes, files, and API keys.
n8n
How to Enable n8n OpenTelemetry Tracing: Workflow Spans, Node Spans, and Slow-Node Debugging
Enable native n8n OpenTelemetry tracing: set two environment variables or use Settings > OpenTelemetry, send spans to Jaeger or Grafana, and find slow nodes.
AI Tools
OmniSocials MCP Server Tutorial: Connect Claude to 13 Social Networks and Schedule Posts in Plain Language
Connect the OmniSocials MCP server to Claude with one URL, then draft, schedule, and analyze posts across 13 social networks from a single chat.
AI Tools
AgentR Webcmd Browser Agent Tutorial: Teach an AI Browser a Site Once, Then Reuse It
Install AgentR Webcmd, teach it a website once, and reuse its local sitemap memory to cut browser-agent token spend on repeat tasks.