When native function calling was enabled, builtin tools were incorrectly injected into internal task model requests (title generation, follow-up generation, tags, etc.). This caused the task model to attempt tool calls with missing parameters, resulting in "missing required argument: query" errors.
Added a check to skip builtin tool injection when the request has a task type set in metadata.
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🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.
## 📋 Pull Request Information
**Original PR:** https://github.com/open-webui/open-webui/pull/20708
**Author:** [@Classic298](https://github.com/Classic298)
**Created:** 1/15/2026
**Status:** ❌ Closed
**Base:** `dev` ← **Head:** `fix-task-model-native-tools`
---
### 📝 Commits (1)
- [`db3bb1c`](https://github.com/open-webui/open-webui/commit/db3bb1c3a3c19a4f78301193455b4b0de3dff4c3) Update middleware.py
### 📊 Changes
**1 file changed** (+1 additions, -0 deletions)
<details>
<summary>View changed files</summary>
📝 `backend/open_webui/utils/middleware.py` (+1 -0)
</details>
### 📄 Description
## fix: native function calling improvements
### Description
When native function calling was enabled, builtin tools were incorrectly injected into internal task model requests (title generation, follow-up generation, tags, etc.). This caused the task model to attempt tool calls with missing parameters, resulting in "missing required argument: query" errors.
Added a check to skip builtin tool injection when the request has a task type set in metadata.
### Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the [Contributor License Agreement (CLA)](https://github.com/open-webui/open-webui/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT), and I am providing my contributions under its terms.
> [!NOTE]
> Deleting the CLA section will lead to immediate closure of your PR and it will not be merged in.
---
<sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>
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📋 Pull Request Information
Original PR: https://github.com/open-webui/open-webui/pull/20708
Author: @Classic298
Created: 1/15/2026
Status: ❌ Closed
Base:
dev← Head:fix-task-model-native-tools📝 Commits (1)
db3bb1cUpdate middleware.py📊 Changes
1 file changed (+1 additions, -0 deletions)
View changed files
📝
backend/open_webui/utils/middleware.py(+1 -0)📄 Description
fix: native function calling improvements
Description
When native function calling was enabled, builtin tools were incorrectly injected into internal task model requests (title generation, follow-up generation, tags, etc.). This caused the task model to attempt tool calls with missing parameters, resulting in "missing required argument: query" errors.
Added a check to skip builtin tool injection when the request has a task type set in metadata.
Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.