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Skill Update 1 min read

Unlocking the Codex harness: how we built the App Server

Source: OpenAI Blog
February 4, 2026 · 7mo ago
Visual for Unlocking the Codex harness: how we built the App Server

Summary

Learn how to embed the Codex agent using the Codex App Server, a bidirectional JSON-RPC API powering streaming progress, tool use, approvals, and diffs.

Why It Matters

New skills and integrations expand what AI agents can do. Each new capability represents an opportunity to automate workflows, connect systems, and build more powerful composable architectures.

#agent

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Introducing the Agents API

Build and launch cloud agents with the Agents API, a managed service powered by the Codex harness for orchestration, long-running sessions, and tool use.

#agent
OpenAI Blog · 5d ago
1 min