issue: Gemini-3-Pro cannot work with Google Search Tool Filter

[ShirasawaSama]

Bug title

issue: Gemini-3-Pro cannot work with Google Search Tool Filter

Describe the bug

When using the Google Gemini: gemini-3-pro-preview model with the Google Search Tool Filter enabled and web_search activated, an error occurs:

Steps to reproduce

1. Enable Google Gemini Pipeline
2. Enable Google Search Tool Filter
3. Enable web_search feature
4. Ask gemini-3-pro-preview model: "Today News"
5. An error occurs

Environment

OpenWebUI 0.6.40
API Provider: OpenRouter
All pipelines are latest

Additional context

https://github.com/owndev/Open-WebUI-Functions/blob/main/pipelines/google/google_gemini.py#L1896

I noticed that enabling the google_search_tool feature adds two tools. However, based on the error message, if Google Search is enabled, no additional tools should be added.

After commenting out the code, everything worked fine.

[owndev]

Hi @ShirasawaSama

I tested it on my system and it worked without any problems.

Perhaps it's because you're using OpenRouter?

This was added by @olivier-lacroix in #115 (https://github.com/owndev/Open-WebUI-Functions/pull/115/files#diff-6010cfa97bd80987849d92cd2868fe0e55cece7acd3513721d671968eb6a5f45R1700).

@olivier-lacroix Are you also experiencing this problem?

[olivier-lacroix]

Hum didn't try with Gemini 3. But no issue with 2.5. And enabling both is even given as an example by google.

[olivier-lacroix]

I have tested it with Gemini 3 pro preview, and have had no issue

[ShirasawaSama]

@olivier-lacroix @owndev Hello, I have confirmed that this issue occurs when using Google's Vertex AI, and there is no secondary model provider in between.

Related issue: google/adk-python#899

[olivier-lacroix]

This is weird. I also tested it on vertex ai.

[ShirasawaSama]

This is weird. I also tested it on vertex ai.

google-genai==1.52.0
google-generativeai==0.8.5

[ShirasawaSama]

I believe the simplest solution is to add a Valve that implements a blacklist model for URL context grounding. What do you think?

Personally, I don't feel it's entirely necessary—I could just modify the code myself to disable this tool.

But I still appreciate your help in troubleshooting the issue!

On the other hand, I'm not entirely sure if this pipeline's Google search functionality can display the citation and search process (similar to OpenWebUI's native web search).

[olivier-lacroix]

This is weird. I also tested it on vertex ai.

google-genai==1.52.0
google-generativeai==0.8.5

Ah. I have been using the version bundled with OWUI. so that may explain the difference in behaviour?

[olivier-lacroix]

On the other hand, I'm not entirely sure if this pipeline's Google search functionality can display the citation and search process (similar to OpenWebUI's native web search).

Yes it does show both citations and the queries made

[olivier-lacroix]

I believe the simplest solution is to add a Valve that implements a blacklist model for URL context grounding. What do you think?

Not sure how to best configure that behaviour. I made the choice to just bundle web search and URL context to avoid yet another valve...

[ShirasawaSama]

Next week I may try different versions of the genai and provide a final response.