Better input/output visibility in Langchain callback

[pokidyshev]

Show long inputs under the cut:

[vdonato]

Thanks for the contribution @pokidyshev!

Code-wise this LGTM, but I'll defer to our product team as to whether we want to make this change (CC @sfc-gh-jcarroll)

[sfc-gh-jcarroll]

Thanks for the contribution!

I don't think we should change the default behavior for all usage (which this seems to do)

If it only modified the input behavior if the input_str was longer than MAX_TOOL_INPUT_STR_LENGTH, I would be more onboard! Might suggest doing something like:

if input_str > MAX_TOOL_INPUT_STR_LENGTH:
    self._container.markdown(f"**Input:**\n\n{input_str}")
    self._container.divider()

And then don't modify the output

If you want to push an app with the change so we can play around with it (or record a quick video) that would help too with deciding whether to accept this.

BTW If you just want this for your own uses, I believe you can easily just take the file, make your changes and import / use it in your own app. It should be fairly standalone and stable at this point.

[pokidyshev]

Hello @sfc-gh-jcarroll,

Thank you for your valuable suggestions! I have updated the code accordingly. Regarding the .divider(), while I understand its potential utility, I personally feel that \n\n**Output:** provides clearer segmentation without occupying too much space. Currently, I am utilizing a modified version of this file in my project, as you suggested. However, I would love to see this feature integrated into the library since reviewing inputs can significantly aid in debugging agents.

[pokidyshev]

Here is a Loom showcasing this feature: https://www.loom.com/share/3eb5ffac5c914377b2eca7351705599d?sid=7d75337a-8843-4aeb-9783-d4c8b6859ff7

[sfc-gh-jcarroll]

This looks great. The way you implemented it makes sense and I'm fine with that approach instead of the divider. The Loom is very helpful too, thanks for putting it together 😄

@vdonato good by me to approve and merge

[vdonato]

Thanks again @pokidyshev!