You are helping me build the following AI agent workflow.

## Goal
Xano Support Ticket Router: Receives support tickets via webhook, classifies issues with OpenAI, manages user records in Xano.

## Specification
- What it does: You get support tickets automatically classified by AI so your team can route them correctly. The system checks your user records in Xano to create or update profiles as needed. It then triggers the right escalation rules and returns structured data for immediate action.
- Trigger: Triggered by an event (Event · on new ticket via webhook)
- Autonomy: Fully hands-off
- Expected setup effort: about an afternoon
- Tools/services involved:
  - n8n: Workflow orchestration and agent execution
  - OpenAI Chat Model: Classifying support issues
  - Xano Node: Checking user existence and updating records

## Known pitfalls, handle each one explicitly in your implementation
1. Webhook security is critical for production use, so enable signature verification in both n8n and Xano to prevent unauthorized triggers.

## Reference implementation
https://n8n.io/workflows/11613 (workflow template)
Fetch and inspect this before building. If it matches my stack, adapt it;
if not, rebuild the pattern with my tools.

## Process requirements
1. Before building: ask me which of the listed tools I actually use and
   what my platform is (n8n / Make / code / other). Do not assume.
2. Adapt the pattern to my answers; do not force the reference stack.
3. Address every pitfall above; tell me how you handled each.
4. Provide a test plan I can run before letting this touch real data.
5. Ask before any step that sends messages, modifies data, or spends money.

Source: https://usecasesforagents.com/use-case/xano-support-ticket-router/ via usecasesforagents.com