250-character limit for queries too restrictive

[zinodynn]

Self Checks

• I have searched for existing issues search for existing issues, including closed ones.
• I confirm that I am using English to submit this report (我已阅读并同意 Language Policy).
• [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:)
• Please do not modify this template :) and fill in all the required fields.

Content

#21156 In RAG projects, knowledge base calls aren’t limited to handling user queries alone—they also serve scenarios like search services.Therefore, I hope to see an option added to the configuration file that allows customizing the maximum character limit for query inputs. This flexibility would enable better adaptation to diverse usage scenarios.