OpenAI staffer reach_vb notes that after updating Codex and selecting Astra, enabling [features.context_management] experimental_mode = true in ~/.codex/config.toml lets the agent keep notes across context windows and search earlier messages and tool outputs (including details missing from its notes)—useful for long debugging and large refactors. Requires ChatGPT Plus, Pro, or Pro Lite.

Key Takeaways

  • ✓Enable: update Codex, select Astra, set experimental_mode = true in ~/.codex/config.toml.
  • ✓Capability: notes across context windows plus search over earlier messages/tool outputs.
  • ✓Access: ChatGPT Plus/Pro/Pro Lite; aimed at long debugging and large refactors.
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