Add support for progress tracking #82

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1. mattt

   added

   enhancementNew feature or requestNew feature or request

   on Apr 18, 2025
2. stallent commented on Apr 24, 2025

   

   stallent

   on Apr 24, 2025

   Contributor

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   @mattt starting to look at that as we just stood up a server that supports this. The code itself won't be hard but was curious if you had any thoughts already on how you wanted to do the client api. If we were to try to be roughly similar to the official TS client approach, we would either pass a progress token to callTool and it would come back in the notes stream with that token which would put it on the dev to connect the two. Clearly the simplest to implement, but puts a bit more effort on the dev if they want progress info. Not necessarily a bad thing and keeps the current client api essentially the same. Or pass an optional progress closure to callTool, which is obviously a common TS approach, but could be a bit more awkward in Swift. We could also provide an overload to call tool and return an asyncstream for the progress. something like

   let (toolTask, progressStream) =  client.callTool(...)
   
   Task {
       for await progress in progressStream {
           print("Progress: \(progress * 100)%")
       }
   }
       
   let toolResult = try await toolTask.value

   I could make a case for any of the three approaches but its your call.
3. alainakafkes commented on Oct 23, 2025

   

   alainakafkes

   on Oct 23, 2025

   Last edited by alainakafkes

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   any updates on this feature? i like the first (client includes progress token when invoking callTool and separately subscribes to notifications for this progress token) and third (client receives both progress notifications and final output from callTool) ideas suggested by @stallent but would appreciate it if the maintainer(s) could weigh on on this design decision when they have time to do so 🙏

   (also @stallent feel free to let me know if i've misinterpreted your proposal! i updated this comment with rephrasings of your ideas to confirm my understanding)

   ❤️React with ❤️3Reacted by Stephen Tallent, Paul Minton and Alex Clement
4. DePasqualeOrg commented on Jan 4, 2026

   

   DePasqualeOrg

   on Jan 4, 2026

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   I've implemented this functionality in my PR #175. I'd love to hear your feedback if you're able to test it.