How do you make tool-using agents reliable in production?
PICTURE THIS: AN LLM TURN
Simple meaning
Validate schemas, timeout tools, retry idempotent reads, and never retry non-idempotent writes blindly.
WHY — Tokens instead of words?
LLMs use tokens (not full words) because it helps them:
question about Function calling.
trade-offs, and what you would actually do on a GenAI / LLM project - not buzzwords.
Each piece maps to a number the network can learn.
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:
- 1Validate schemas, timeout tools,
retry idempotent reads, and never retry non-idempotent writes blindly.
- 2Feed errors back in
a standard shape and cap the step count.
- 3Log every call with
arguments redacted so you can debug loops.
- 4Give an example
One tiny concrete case you can say aloud.
- 5Common mistake
What juniors usually get wrong.
- 6Close
When you pick this over the alternative.
EXAMPLE — See it in action
Here's a short line you can speak, broken into clear beats:
Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.
Key takeaway
Validate schemas, timeout tools, retry idempotent reads, and never retry non-idempotent writes blindly. Feed errors back in a standard shape and cap the step count.