OpenAI released Codex CLI as Apache 2.0 open-source agent harness with interactive CLI, programmatic SDK, and Codex app-server for product embedding. v0.147.0 shipped August 7, 2026. Most articles cover it as chat interface — developers need practical coverage of codex exec for CI pipelines and one-shot tasks.
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Codex CLI: OpenAI’s Open Agent Harness — Installation, Commands, and CI Integration
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