MongoDB

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When to use it

Document hosts that already run MongoDB and want a mcpTasks collection with change streams for elicitation.

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Intended how-to

1. Add McpEssentials.MongoDB.
2. Collection mcpTasks, unique index on taskId, compound index { ownerUserId: 1, taskId: 1 }.
3. Compare-and-swap with findOneAndUpdate filtered on current status.
4. Register the store as a singleton with the same current-user factory as Authenticated tasks.

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Events

Change streams on the collection, filtered to input-request updates. Subscribers raise InputResponseReceived.

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TTL

TTL index on the discard stamp (DiscardAfter / CreatedAt + 2×TimeToLive). See Stores.