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Repost exposes two data planes with different consistency guarantees. An agent that knows which plane answers which question avoids both wasted round-trips and false negatives — concluding an event “didn’t arrive” when it simply wasn’t indexed yet.

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Live stream versus indexed store

expect and tail read a real-time observe stream. events search, forwards search, and events get read an indexed store that trails arrival by a short interval.
There is a blind spot between the planes: an event that just arrived is too recent to appear in search, and a stream you open after it arrived will never replay it. To observe the result of an action, open expect/tail before you trigger the action, not after.

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Pick the plane by question

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Stale reads cause conflicts

The indexed store is eventually consistent, so a value you read can move before you act on it. When you cache a resource’s state and then mutate it, a concurrent change makes the write fail with conflict (exit 1) — your view was stale, not your command wrong. Re-read, recompute, and retry idempotently: Safe mutations → Recover from conflict.

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Continue

Search & filters

Field grammar and cursor pagination for the indexed store.

Wait for events

expect and tail against the live observe stream.

Caching & performance

What to cache, and how to back off when you must poll.