Gemini fails to return valid structured output
LLM apps2 posts from 2 people2d active+11 post in the last 7 days, 0 the 7 days before (steady)Unverified
Posts per day
The posts behind it
2, newest firstAPI Error: 400 'INVALID_ARGUMENT' when using REA (Reverse Engineer Anything) skill.### What happened? I recently installed [REA](https://github.com/morluto/rea) (Reverse Engineer Anything) alongside its bundled skill file, configured Gemini CLI in REA interface, and ran the following prompt in Gemini CLI: `Use REA to analyze the native binary at...google-gemini/gemini-cli · ElektroStudios2 repliesOpen ↗[BUG] AI Gateway Gemini provider forwards function parameters as unsanitized parametersJsonSchema, so Gemini returns empty arguments for nested object parameters> [!WARNING] > Before submitting a PR, please make sure that: > - A maintainer has triaged this issue and applied the `ready` label > - This issue has no assignee > - No duplicate PR exists > > PRs not meeting these requirements may be automatically closed. ### Issues Policy...mlflow/mlflow · Nantina4 repliesOpen ↗
Companies and products named
About this problem
Evidence
2 posts from 2 people in 2 places, about 1 a week over 15 days. Mostly on mlflow/mlflow, google-gemini/gemini-cli. Tools named alongside: Claude, OpenAI, LangChain, MLflow.
Frustration Frustration 0 of 3· Seen on GitHub issues
How it was grouped
Posts that state a pain and match the "structured-output" rule about Gemini. First post Oct 2, 2026, latest Oct 16, 2026. Unverified: fewer than 3 posts, or one person or place only. Method
The same problem elsewhere
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History
Gemini fails to return valid structured output (2 posts)