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Wide architecture diagram showing a user request flowing to an agent and SDK, then to a custom inventory tool, with returned data becoming the final response.

OpenAI Agents SDK Tutorial: Build Your First Tool-Using Agent

This OpenAI Agents SDK tutorial builds one small Python agent that answers inventory questions by calling a custom tool. The example is intentionally narrow: it looks up stock for a known product from local application data. That makes the tool-calling lifecycle easy to inspect before you connect an agent to a database, API, WordPress site, or WooCommerce store.

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