You are helping me build the following AI agent workflow.

## Goal
Create New User In Intercom: Instantly adds customer or agent profiles to your Intercom support database without manual entry.

## Specification
- What it does: Add customers or agents to your Intercom support database instantly without any manual entry. This automation handles the registration process directly, ensuring new profiles are created immediately and efficiently.
- Trigger: Run manually (Manual · on demand)
- Autonomy: Fully hands-off
- Expected setup effort: under an hour
- Tools/services involved:
  - Intercom: User management and support platform

## Known pitfalls, handle each one explicitly in your implementation
1. Missing required fields like email or external_id will trigger a 422 error so add strict schema validation upstream.

## Reference implementation
https://n8n.io/workflows/464 (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/create-new-user-in-intercom/ via usecasesforagents.com