Moderate Prompting Question 86 of 223

How do you design a strong system prompt for a product?

GenAI / LLM · Speak this in 60–90 seconds · Faridabad & Delhi NCR

PICTURE THIS: AN LLM TURN

Text inTokens

TransformerAttention

Text outNext token

Simple meaning

State the role, allowed tools, output schema, and what to do when information is missing.

WHY — Tokens instead of words?

LLMs use tokens (not full words) because it helps them:

This is a process

question about Prompting.

Panels listen for order,

trade-offs, and what you would actually do on a GenAI / LLM project - not buzzwords.

Stable token IDs

Each piece maps to a number the network can learn.

Fits the model

Fixed pieces are what transformers expect as input.

STEPS — What happens step by step?

Before you speak the answer, walk the interviewer through these steps:

1
State the role, allowed
tools, output schema, and what to do when information is missing.
2
Put non-negotiable safety and
brand rules first, then task details.
3
Keep it versioned, evaluated,
and short enough that it does not crowd out retrieved context.
4
Give an example
One tiny concrete case you can say aloud.
5
Common mistake
What juniors usually get wrong.
6
Close
When you pick this over the alternative.

EXAMPLE — See it in action

Here's a short line you can speak, broken into clear beats:

Say this line

“Put non-negotiable safety and brand rules first, then task details.”

Break into beats

Putnonnegotiablesafetyandbrand

Speaking order

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Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.

Key takeaway

State the role, allowed tools, output schema, and what to do when information is missing. Put non-negotiable safety and brand rules first, then task details.