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StreamableHttp - client resumability #595

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@ihrpr ihrpr commented Apr 28, 2025

This PR implements client-side support for resumable tool execution in MCP, allowing
clients to resume interrupted long-running tools, for example, after network disconnections.

Summary

  • Enable clients to resume tool execution after connection breaks
  • Add resumption token support to track tool execution progress
  • Implement SSE Last-Event-ID header for automatic event replay
  • Refactor client code

Note: stacked on top of #591

@ihrpr ihrpr marked this pull request as ready for review April 28, 2025 19:32
@ihrpr ihrpr added this to the 2025-03-26 spec release milestone Apr 29, 2025
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