LESSON 65 / 215·2 min readIntermediate

OpenAI Agents SDK

Should knowConcept lesson
01 Understand02 Recall03 Prepare

Words made simple

A few useful meanings before you read the explanation.

Agent
An application that uses a model to choose its next action within defined limits. It can use tools and continue through several steps.
SDK
A set of code tools provided to help an application use a service or framework.
API
A way for one piece of software to ask another for data or an action. A claims API might return the current status of a claim.
More words from this lesson
State
The data describing where a workflow is now, what it already knows, and what still needs to happen.
Persistence
Saving information so it remains available after a request ends or a process restarts.
Durable
Able to retain progress and recover across interruptions. Durable workflows require appropriate storage and retry behavior.
Evaluation
Checking results against examples and clear criteria to find whether the system works well and where it fails.
Trace
A linked record of the steps in one request, including model calls, retrieval and tools. It helps locate delays or failures.

🟠 SHOULD KNOW · Learn the shared architecture, then become fluent in one framework that fits your work.

Overview

  • The OpenAI Agents SDK provides agent-oriented building blocks for model calls, tools, handoffs, and run management.
  • It offers a higher-level agent interface than manually processing each API response.
  • SDK features and provider integration details depend on the selected language and version.

Why this matters

It reduces repetitive agent-loop and tracing integration work.

An everyday example

A support operating kit standardizes how staff call tools and transfer tasks.

A technical example

Define a policy assistant with a search tool and a claims assistant with a status tool, then orchestrate their responsibilities.

How it works

  1. Configure agent/instructions/tools
  2. Start run
  3. SDK manages interaction steps
  4. Application enforces tool rules and review policy
  5. Inspect result and traces.

Architecture and flow

Application → SDK runner → agent/model → approved tools → result.

The insurance assistant example

A TypeScript insurance assistant uses agent helpers while claim transactions remain ordinary backend services.

When to use it

Agent-focused applications where its tool, handoff, and run abstractions match your needs.

When to avoid it

A fixed summarization call or a process requiring a richer explicit business state machine may be simpler elsewhere.

Interview answer

“The Agents SDK handles common agent runtime patterns; my application owns identity, permissions, durable business state, and evaluation.”

Benefits, trade-offs, and production considerations

  • Compared with LangGraph, start from agent and runner abstractions rather than drawing every transition.
  • Verify persistence, approval behavior, supported providers, and tracing data policies for your version.
  • Official OpenAI agent documentation.
PAUSE & RECALL

Can you explain it without the notes?

OpenAI Agents SDK

Use your own words. Explain an example and one limitation before checking the explanation.

Check your explanation

The OpenAI Agents SDK provides agent-oriented building blocks for model calls, tools, handoffs, and run management. It offers a higher-level agent interface than manually processing each API response. SDK features and provider integration details depend on…

CONNECT IT TO YOUR INTERVIEW

Turn this concept into a clear answer.

Practice this concept
YOUR NEXT STEP

Keep connecting the ideas.

Next lesson: Microsoft Agent Framework: agents and workflows

Adapted from 13_AI.MD · “OpenAI Agents SDK”. Examples are study fragments; framework behavior can depend on your version.