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Your assistant is only as good as its instructions. A clear, specific prompt produces an assistant that sounds trained for the job. A vague one produces a vague assistant.
Short on time? Use Generate on the Prompt tab or start from a template, then refine with this guide.

Use sections

Type / at the start of a line in Instructions to insert a section. A good prompt usually has these:
1

Identity

Who the agent is and who they represent.
2

Objective

What a successful call looks like.
3

Speaking style

The most important section for voice. Without it, assistants sound like chatbots.
4

Steps

The call flow.
5

Guardrails

Hard rules.
6

Error handling

What to do when things go off script.
7

Context

Background facts: company details, offers, office hours, FAQs. For long material, use the knowledge base instead.

Rules that make a difference

On a call, anything longer than two sentences sounds like a monologue. Callers interrupt or hang up.Avoid: “Explain all features, pricing tiers, and integrations.”Better: “Give a one-sentence summary of what we do, then ask what they need.”
Vague: “Qualify the lead.”Specific: “A lead is qualified if they plan to buy within 3 months and their budget is above ₹80 lakh.”
Explicit limits are as important as goals: no competitor talk, no promises you can’t keep, no pushing a busy caller.
Insert {{customer_name}} with the @ shortcut so every call feels personal.
If you set a Transfer to Human number, tell the assistant exactly when to use it and what to say first.
If callers speak Hindi or a regional language, translate the instructions with Translate prompt. See Multilingual assistants.

Test and iterate

1

Talk to it

Use Talk to run realistic test calls, including difficult callers.
2

Review conversations

Open Conversations and read where the assistant went wrong.
3

Refine one thing at a time

Use Generate & refine or edit the section directly, then test again.