fix: call tasks/result when task status is input_required#1174
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galagaevdc wants to merge 1 commit intomodelcontextprotocol:mainfrom
Open
fix: call tasks/result when task status is input_required#1174galagaevdc wants to merge 1 commit intomodelcontextprotocol:mainfrom
galagaevdc wants to merge 1 commit intomodelcontextprotocol:mainfrom
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This was referenced Apr 3, 2026
Per the MCP spec (2025-11-25), when a client observes input_required status during task polling it must call tasks/result to give the server a chance to deliver queued elicitation/sampling requests. Previously the polling loop only called tasks/result after completed status, leaving the server unable to trigger elicitation. After elicitation is handled the task transitions back to working so taskCompleted is not set — polling continues until a terminal status is reached.
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Summary
Fixes #1073
Per the MCP spec https://modelcontextprotocol.io/specification/2025-11-25/basic/utilities/tasks#input-required-status, when a client observes input_required status during task polling it must call tasks/result to give the server a chance to deliver queued elicitation/sampling requests. Previously the polling loop only called tasks/result after completed status, leaving the server unable to trigger elicitation.
After elicitation is handled the task transitions back to working so taskCompleted is not set — polling continues until a terminal status is reached.
Type of Change
Changes Made
The fix adds an explicit input_required branch in the polling loop that calls tasks/result as required by the
https://modelcontextprotocol.io/specification/2025-11-25/basic/utilities/tasks#input-required-status. After elicitation is handled the server transitions the task back to working, so the loop
continues polling until a terminal status is reached.
Related Issues
#1073
Testing
Test Results and/or Instructions
Screenshots are encouraged to share your testing results for this change.
Checklist
npm run prettier-fix)Breaking Changes
None