OpenAI Agents SDK Adds Experimental Code Mode, Hooks Engine, and gpt-5.4 Computer Use Support

OpenAI Agents SDK GitHub·medium signal

The OpenAI Agents SDK shipped experimental code mode, a hooks engine for agent lifecycle interception, and WebSocket readyz/healthz health check endpoints for production observability. gpt-5.4 is now supported for the computer use tool alongside the existing computer-use-preview model. Tool Search now supports namespaces, enabling more granular scoping of retrieval across agent tool calls.