[GH-ISSUE #16940] feat: Confirming inputs passed to MCP/tools #56770

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opened 2026-05-05 20:05:13 -05:00 by GiteaMirror · 1 comment
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Originally created by @jayteaftw on GitHub (Aug 26, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/16940

Originally assigned to: @tjbck on GitHub.

Check Existing Issues

  • I have searched the existing issues and discussions.

Problem Description

I want to be able to determine what data the LLM wants to send out to search the web and if I dont want the data to be sent then I can either cancel the request or if possible be able to modify it.

Desired Solution you'd like

I would like to be able to verify what data is being sent to MCP tools and be able to confirm or cancel a MCP tool request.

Is this currently possible with filter? If so where is it being shown within the inlet function for a filter? It seems to be the case that inlet data is before the actual tool call is made

Alternatives Considered

Is there a way to do this with the current filters?

Additional Context

No response

Originally created by @jayteaftw on GitHub (Aug 26, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/16940 Originally assigned to: @tjbck on GitHub. ### Check Existing Issues - [x] I have searched the existing issues and discussions. ### Problem Description I want to be able to determine what data the LLM wants to send out to search the web and if I dont want the data to be sent then I can either cancel the request or if possible be able to modify it. ### Desired Solution you'd like I would like to be able to verify what data is being sent to MCP tools and be able to confirm or cancel a MCP tool request. Is this currently possible with filter? If so where is it being shown within the inlet function for a filter? It seems to be the case that inlet data is before the actual tool call is made ### Alternatives Considered Is there a way to do this with the current filters? ### Additional Context _No response_
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@felixhummel commented on GitHub (Aug 28, 2025):

I am especially interested in the verify part of this, because here's how we develop tools for Open WebUI:

  1. prompt via open webui
  2. check tool calls
  3. edit our API

The more info we get in step 2 the better.

<!-- gh-comment-id:3233335516 --> @felixhummel commented on GitHub (Aug 28, 2025): I am especially interested in the **verify** part of this, because here's how we develop tools for Open WebUI: 1. prompt via open webui 2. check tool calls 3. edit our API The more info we get in step 2 the better.
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Reference: github-starred/open-webui#56770