OpenAI DevDay: Harness-as-a-Service brings the Codex harness to the Agents API
OpenAI · youtube · 2026-11-11
At OpenAI DevDay 2026, Steve Coffey (API Team) and Charlie Guo (Developer Experience Engineer) presented "Harness-as-a-Service: Building with the Agents API." The session covers building with the Codex harness through the Agents API: running agents in your own environment, keeping long-running tasks going, and understanding which infrastructure OpenAI manages.
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