Codex suggests deprecated API (Assistants ➜ Responses) — anyone found a reliable workaround?

While refactoring an internal tool from the deprecated Assistants API to the Responses API using the Codex VS Code extension (model: gpt-5-codex medium), Codex repeatedly suggested removed/renamed parameters and JSON schemas that failed validation against the latest API. Has anyone figured out how to get Codex to rely on current API/library documentation?

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Same here.
I have not found out how to make it use web search, which sometimes helps chatgpt against outdated info.