Task complete notification is not handled

[He-Pin]

Inspector Version

• 0.19.0

Describe the bug
A clear and concise description of what the bug is.

Once the server responds, the related task id is already completed, the inspector is still waiting for the polling interval to retrive the final result.

Expected behavior
Once the inspector received the notification, it should just call the tasks/result asap.

[cliffhall]

Hi @He-Pin. Not sure what's going on there. This is working for me using the Everything Server. I looked at the messages and they seem similar except you have a much longer ttl. Shouldn't matter on the client side. Maybe dial that way down and see if it changes anything?

STDIO

Screen.Recording.2026-01-27.at.11.35.03.AM.mov

Streamable HTTP

Screen.Recording.2026-01-27.at.11.37.55.AM.mov

Final Status

[He-Pin]

I mean when we received the task status notification which related to the current polling , we should stop the current polling and trigger a new task/result call to retrieve the result asap

[cliffhall]

I mean when we received the task status notification which related to the current polling , we should stop the current polling and trigger a new task/result call to retrieve the result asap

Did you try my suggestion? As I showed above it is working on the Everything server, the only difference I can see from your screenshot is the ttl. Did you try lowering it to 300000 to see if it made any difference?

[He-Pin]

@cliffhall Yes, it works, but I think it would be better if it's on the tool call area, something like:

[cliffhall]

@He-Pin I agree, but unfortunately we are quite busy trying to get a lot of other things to work at the moment and that currently doe work. If you would like to create a PR that moves it there, I'll be happy to review it.

[He-Pin]

@cliffhall Thanks for this, the current inspector is quite ok too, at work we are still get people on board of mcp task. I will try to do this once I find time.

[Christian-Sidak]

Submitted a fix in #1192 -- the polling loop now wakes immediately on task completion notifications via Promise.race, instead of waiting for the next poll interval.