[DOCS]: MCP ERROR #254

New Issue

2026-02-16T05:19:36-05:00

yindo commented

2026-02-16 05:19:36 -05:00

Originally created by @chent1030 on GitHub (Oct 26, 2025).

Type of Documentation Change

Error/Typo fix

Documentation Page URL or Path

No response

Current Content

When LLM calls a toolset for a custom-developed MCP, the first call works normally, but subsequent calls each add a ";" after the tool. This causes the parameters passed to the Tool to not be received on the MCP server end.

Suggested Changes

Would you like me to elaborate or help debug the issue?

Reason for Change

No response

Code of Conduct

I agree to follow Dify's documentation contribution guidelines
I have searched for existing issues search for existing issues, including closed ones.
I confirm that I am using English to submit this report, otherwise it will be closed.
【中文用户 & Non English User】请使用英语提交，否则会被关闭：）
Please do not modify this template :) and fill in all the required fields.

Originally created by @chent1030 on GitHub (Oct 26, 2025). ### Type of Documentation Change Error/Typo fix ### Documentation Page URL or Path _No response_ ### Current Content When LLM calls a toolset for a custom-developed MCP, the first call works normally, but subsequent calls each add a ";" after the tool. This causes the parameters passed to the Tool to not be received on the MCP server end. ### Suggested Changes Would you like me to elaborate or help debug the issue? ### Reason for Change _No response_ ### Code of Conduct - [x] I agree to follow Dify's documentation [contribution guidelines](https://github.com/langgenius/dify/blob/0277a37fcad5ad86aeb239485c27fffd5cd90043/CONTRIBUTING.md) - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this report, otherwise it will be closed. - [x] 【中文用户 & Non English User】请使用英语提交，否则会被关闭：） - [x] Please do not modify this template :) and fill in all the required fields.

yindo added the documentation bug labels 2026-02-16 05:19:36 -05:00

yindo closed this issue

2026-02-16 05:19:36 -05:00

yindo commented

2026-02-16 05:19:37 -05:00

@dosubot[bot] commented on GitHub (Nov 7, 2025):

Hi, @chent1030. I'm Dosu, and I'm helping the dify-docs team manage their backlog and am marking this issue as stale.

Issue Summary:

You reported that multiple calls to a custom MCP through an LLM append a semicolon after the tool name.
This causes parameters to not be correctly received by the MCP server.
You offered to provide additional details or assist with debugging.
There has been no further activity or comments since your initial report.

Next Steps:

Please let me know if this issue is still relevant to the latest version of the dify-docs repository by commenting here.
If I do not hear back within 5 days, I will automatically close this issue.

Thank you for your understanding and contribution!

@dosubot[bot] commented on GitHub (Nov 7, 2025): Hi, @chent1030. I'm [Dosu](https://dosu.dev), and I'm helping the dify-docs team manage their backlog and am marking this issue as stale. **Issue Summary:** - You reported that multiple calls to a custom MCP through an LLM append a semicolon after the tool name. - This causes parameters to not be correctly received by the MCP server. - You offered to provide additional details or assist with debugging. - There has been no further activity or comments since your initial report. **Next Steps:** - Please let me know if this issue is still relevant to the latest version of the dify-docs repository by commenting here. - If I do not hear back within 5 days, I will automatically close this issue. Thank you for your understanding and contribution!

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Reference: langgenius/dify-docs#254