macOS VSCode codex plugin chatting encountered an error "missing_required_parameter" Missing required parameter: 'tools[14].tools'.
Open 💬 2 comments Opened Apr 19, 2026 by Zhxhh
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of the IDE extension are you using?
v26.415.20818
What subscription do you have?
annual
Which IDE are you using?
VS Code
What platform is your computer?
macos
What issue are you seeing?
macOS VSCode codex plugin chatting encountered an error "missing_required_parameter" Missing required parameter: 'tools[14].tools'.
{"error":{"message":"code: missing_required_parameter; message: Missing required parameter: 'tools[14].tools'.","type":"invalid_request_error","param":"tools[14].tools","code":"-4003"}}<img width="374" height="389" alt="Image" src="https://github.com/user-attachments/assets/45d299a1-b09e-4a8c-b420-65cf68283e8e" />
What steps can reproduce the bug?
As soon as I start chatting, it will trigger and it's completely unusable.
What is the expected behavior?
_No response_
Additional information
_No response_
2 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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/feedbackto upload logs and session details, then post the thread ID here.Are you using the standard OpenAI endpoint, or are you using Azure Foundry and an Azure-hosted OpenAI model? Are you using OpenRouter or any other LLM proxy or router software?