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@roomote roomote bot commented Nov 19, 2025

Description

This PR fixes an issue where Gemini models accessed via OpenAI Compatible provider were incorrectly attempting to use native OpenAI tool calling format, which they don't support. The fix detects Gemini models by their model ID and disables native tool support, forcing them to use XML-style tool calls instead.

Problem

Starting with v3.33.1, when native tool calling support was added to the OpenAI-compatible provider, Gemini models stopped working correctly. They would output valid XML tool calls, but these would not be recognized or executed because the system was expecting native format instead.

Solution

The fix checks if the model ID contains 'gemini' (case-insensitive) and overrides the flag to , ensuring these models use the XML protocol for tool calls.

Testing

  • Tests pass:
    RUN v3.2.4 /data/repos/Roo-Code

Test Files 1 failed (1)
Tests no tests
Start at 08:10:47
Duration 1.51s (transform 665ms, setup 0ms, collect 0ms, tests 0ms, environment 0ms, prepare 113ms)

  • All linting and type checks pass

Fixes #9385

…ider

When using Gemini models via OpenAI Compatible provider, they do not
support native OpenAI tool calling format and require XML-style tool
calls instead. This fix detects Gemini models by their model ID and
disables supportsNativeTools to force XML protocol.

Fixes #9385
@roomote roomote bot requested review from cte, jr and mrubens as code owners November 19, 2025 08:10
@dosubot dosubot bot added size:XS This PR changes 0-9 lines, ignoring generated files. bug Something isn't working labels Nov 19, 2025
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roomote bot commented Nov 19, 2025

Rooviewer Clock   See task on Roo Cloud

Review completed. The fix correctly detects Gemini models and disables native tool support, but test coverage is needed.

  • Add test coverage for Gemini model detection logic

Mention @roomote in a comment to request specific changes to this pull request or fix all unresolved issues.

Comment on lines +319 to +323
// Gemini models don't support native OpenAI tool calling format when accessed via OpenAI Compatible endpoints
// They require XML-style tool calls instead
if (id.toLowerCase().includes("gemini")) {
info = { ...info, supportsNativeTools: false }
}
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This new Gemini detection logic lacks test coverage. The fix should include tests verifying that models with 'gemini' in their ID (case-insensitive) have supportsNativeTools set to false, while other models are unaffected. This is especially important since the issue report indicates this is a regression from v3.33.0 to v3.33.1.

Fix it with Roo Code or mention @roomote and request a fix.

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Labels

bug Something isn't working Issue/PR - Triage New issue. Needs quick review to confirm validity and assign labels. size:XS This PR changes 0-9 lines, ignoring generated files.

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Status: Triage

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Successfully merging this pull request may close these issues.

[BUG] XML-style tool calls are no longer executed starting with version 3.33.0 onwards when using OpenAI Compatible provider

3 participants