Skip to main content

​
Before you start

A phone number with SMS capability. Ask support.
SMS write permissions.
A2P 10DLC registration under way. See Compliance — it takes days to weeks, so start early.
Default roles don’t include SMS access. Only Admin and Super Admin have it.

​
Steps

Open the editor and choose Lumina

Chat → SMS → Agents, then create an agent. You’re asked to pick the engine: choose Lumina.
The engine can’t be changed later. It’s fixed when the agent is created.
📷 Screenshot needed — the SMS engine selection modal.Save to /images/en/sms-agents/create-01-engine.png

Name and description

In the top bar.

Model and language

AI Model & Responses group, the only one that starts open.
  • LLM Model — each option shows its cost per message. The default is a compact, inexpensive model.
  • Language — English, Spanish (Latin America), Spanish (Spain) or Multilingual.
The language selector shows helper text written for calls (“the language in which the agent will make calls”). On SMS it means the language of the messages.

Channel: number, type and routing

SMS Channel group.
  • Phone Number — required for inbound agents.
  • Agent Type — Inbound or Outbound.
  • Routing — inbound only: a weekly schedule, or mark it as the number’s default.
Choose Inbound. Lumina only handles inbound conversations for now. If you choose Outbound you’ll see this notice, and the agent won’t be able to start conversations:“Lumina agents can only handle inbound conversations for now. An outbound Lumina agent can be saved, but it will not be able to start a conversation.”

Write the prompt

The centre column: a single document with context, conversation flow and rules.
SMS is billed per message and read on a small screen. Be shorter than you would on WhatsApp: one idea per message.

Save

Press create. The agent is live immediately — there’s no draft and no version history.

​
Next step

Configuration

Schedule, behaviour, memory and outcome tags.