In the Agent-type application, an error occurred when using the tool: The length of output variable result must be less than 30

[shaunsyb]

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.

1. Is this request related to a challenge you're experiencing? Tell me about your story.

I used a self-developed workflow as a tool in the application and invoked it in the prompt. This workflow will return the corresponding knowledge base content to the large model based on the user's input information. The return format is a JSON. However, some input requests from users now cause errors. When I manually execute the workflow by substituting the parameters into it, the workflow can be executed normally. I don't know how to handle this limitation. The screenshot of the error is as follows:

2. Additional context or comments

Version: 1.3.0