
OpenAI Agent Builder and Evals Are Shutting Down: Move the Agent Stack Into Code
OpenAI Agent Builder, hosted Evals and reusable prompts shut down November 30. A migration plan to the Agents SDK, repo-owned prompts and eval receipts.
4 articles

OpenAI Agents SDK as of Python 0.24 and JS 0.20: sandbox agents, three guardrail layers, compaction sessions, MCP v2 and new defaults, with type-checked code.

OpenAI Agent Builder, hosted Evals and reusable prompts shut down November 30. A migration plan to the Agents SDK, repo-owned prompts and eval receipts.

Sandbox agents, file-based memory and Codex-style filesystem tools in the OpenAI Agents SDK: what the docs actually ship, with code adapted from OpenAI's own examples.

OpenAI Agents SDK for TypeScript, explained with code: agents, Zod tools, structured outputs, multi-agent handoffs, streaming and human approval steps.
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