OpenAI Codex now finishes 85% of scoped tasks. Here is the /goal workflow that gets you there.
OpenAI has been circulating an 85 to 90 percent success rate for Codex on well-scoped maintenance work. That number comes from internal testing, not an independent benchmark. But the mechanics behind it are real, and they explain both why it works and when it falls apart.
The feature is /goal. It shipped in Codex CLI 0.128.0 and became generally available across the CLI, IDE extension, and Codex app in version 0.133.0 on May 21, 2026. The short version: you set a goal, Codex loops until it believes the goal is complete, and the only hard stops are an evaluation that says "done" or a token budget that runs dry.
Understanding why that loop succeeds or fails on any given task is the whole game.
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