feat: use MCP Tasks protocol for async operations#1631
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Replace hand-rolled task store with the MCP SDK's InMemoryTaskStore. The SDK auto-registers handlers for tasks/get, tasks/result, tasks/list, and tasks/cancel when taskStore is passed to the Server constructor. - Training agent uses extra.taskStore (SDK wrapper with status notifications and session propagation) with raw store fallback for tests - TTL clamped to 24h max, 1h default to prevent memory exhaustion - Tool definitions declare execution.taskSupport per MCP spec - Docs show both Server + taskStore and McpServer + registerToolTask paths - Security guidance for publishers: session scoping, TTL limits, rate limits Related: adcontextprotocol/adcp-client#378 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Merge main into mcp-task-support branch. Resolve conflict in task-handlers.ts tools/call handler by combining our task-augmented result assignment pattern with main's adcpError() structured error format. Update 27 test assertions to match adcpError response shape. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
… format and status_filter defaults Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Mar 23, 2026
Take main's training-agent tests (already fixed by MCP Tasks PR #1631), renumber our migration from 323 to 324 to avoid conflict with 323_addie_no_speculation.sql, and update test reference. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
InMemoryTaskStore— the SDK auto-registers handlers fortasks/get,tasks/result,tasks/list,tasks/cancelextra.taskStore(SDK wrapper with status notifications and session propagation) with raw store fallback for test harnessexecution.taskSupportper MCP Tasks specServer+taskStoreandMcpServer+registerToolTaskpathsRelated client-side work: adcontextprotocol/adcp-client#378, adcontextprotocol/adcp-client#379
Test plan
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