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McpEssentials.Redis is specified and is not in this repository yet.
Low-latency handles, native TTL, and pub/sub for elicitation. Prefer this over IDistributedCache when the cache is Redis and you need fan-out.

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When to use it

  • The host already runs Redis.
  • Tasks should vanish with EXPIRE / EXPIREAT from DiscardAfter.
  • Several nodes wait on ElicitAsync and can subscribe to a Redis channel.

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Intended how-to

  1. Add McpEssentials.Redis and a ConnectionMultiplexer.
  2. Keys:
  1. Register the store as a singleton with the same current-user factory as Authenticated tasks.
  2. CreateTaskAsync uses SET with replica wait (Wait / waitReplicas) so a later get on any node can see the row. Eventually-consistent Redis without wait is not SEP-2663 compliant.
  3. Terminal transitions use a Lua script that checks status before writing.
A missing key is not found. Get does not distinguish expiry from isolation.

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Events

Subscribers raise InputResponseReceived. Payload is task id plus request id.

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TTL

EXPIREAT on the task key from DiscardAfter (CreatedAt + 2×TimeToLive). No sweeper required. Core SweepExpiredAsync is a no-op; Redis owns expiry. See Stores.