[pull] main from modelcontextprotocol:main #289
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- Add tasks capability with list, cancel, and requests.tools.call - Add InMemoryTaskStore and InMemoryTaskMessageQueue from SDK experimental - Add simulate-research-query tool demonstrating task lifecycle - Task demonstrates working -> input_required -> completed status flow - Uses elicitation for ambiguous queries when client supports it Closes #3037 🦉 Generated with [Claude Code](https://claude.ai/code)
Add tools that demonstrate bidirectional MCP tasks where the server sends requests to the client for async execution: - trigger-sampling-request-async: Send sampling request with task params, client creates task and executes LLM call in background, server polls for completion and retrieves result - trigger-elicitation-request-async: Same pattern for user input, useful when user may take time to fill out forms Both tools: - Check client capabilities (tasks.requests.sampling/elicitation) - Accept both CreateTaskResult and direct result responses - Poll tasks/get for status updates - Fetch final result via tasks/result Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Instead of waiting for the client to call tasks/result to trigger elicitation, the server now sends elicitation/create directly from the background process using sendRequest. This simplifies the flow: - Server sends elicitation proactively when clarification is needed - Client receives and handles it via existing elicitation handler - Task resumes and completes after receiving the response - Client's polling sees completed status This approach avoids requiring the client to detect input_required status and call tasks/result as a side-channel. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Update documentation to reflect that simulate-research-query now sends elicitation requests directly from the background task instead of using the tasks/result side-channel approach. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implement graceful degradation for elicitation on HTTP transport: - STDIO: Full elicitation works via sendRequest - HTTP: Catches elicitation failure, uses default interpretation - Task completes successfully on both transports simulate-research-query now uses try-catch around sendRequest and includes explanatory message when elicitation is skipped on HTTP. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: Cliff Hall <cliff@futurescale.com>
…m requests - Use params.task instead of params._meta.task for task metadata - Remove pollInterval from task requests (only available on result) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
feat(everything): add SEP-1686 Tasks support
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