codex - 💡(How to fix) Fix Context compaction fails with unknown parameter 'prompt_cache_retention' [37 comments, 33 participants]

The app shows this error inline in the chat UI: Error running remote compact task: { "error": { "message": "Unknown parameter: 'prompt_cache_retention'.", "type": "invalid_request_error", "param": "prompt_cache_retention", "code": "unknown_parameter" } } This appears during the "Automatically compacting context" step. Instead of compacting the conversation, the app surfaces the raw API error. Error running remote compact task: { "error": { "message": "Unknown parameter: 'prompt_cache_retention'.", "type": "invalid_request_error", "param": "prompt_cache_retention", "code": "unknown_parameter" } } Error running remote compact task: { "error": {

TL;DR

The issue is likely due to an unknown parameter 'prompt_cache_retention' in the compact task request, and removing or updating this parameter may resolve the issue.

Guidance

• Verify that the 'prompt_cache_retention' parameter is not required for the compact task by checking the API documentation or consulting with the development team.
• Check if there are any recent changes to the API or the Codex app that may have introduced this issue.
• Attempt to manually compact the context using the CLI without the 'prompt_cache_retention' parameter to see if it succeeds.
• Consider updating the Codex app to the latest version or checking for any available patches that may address this issue.

Example

No code snippet is provided as the issue is related to an unknown parameter in the API request, and without more information about the API or the request being made, it's difficult to provide a specific example.

Notes

The issue may be specific to the version of the Codex app being used (26.409.20454) or the ChatGPT Pro subscription. It's also possible that the issue is related to a recent change in the API or the app.

Recommendation

Apply workaround: Remove or update the 'prompt_cache_retention' parameter in the compact task request, as it appears to be the cause of the issue. This may require updating the Codex app or modifying the API request.