# Make outbound Feishu delivery durable and idempotent

Type: task
Status: open
Blocked by: 44

## Question

Give status cards, final responses, files, and recovery notices a durable
outbox/delivery lifecycle with stable idempotency keys, provider message IDs,
bounded retry and reconciliation, so model completion is distinguishable from
pending/failed/delivered user-visible output and an operator can safely replay
ambiguous failures without duplicates.
