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JevMade field notes / Technical guide

Connect a Scala program built with ZIO to Jev

This community library connects Jev to ZIO, a Scala programming toolkit. It explains basic questions and larger patterns that coordinate several requests or repeat decisions as information changes.

Original by jameswardAgent workflows

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Our summary

ZIO is a toolkit for Scala programs that makes outside services and possible failures explicit. This library fits Jev into that approach. An application can share a connection, ask questions with known answer forms, and combine the results with its other work.

The guide begins with the three question types and different ways to read answers. Later examples coordinate several providers, run questions at the same time, filter evidence, and repeat decisions as information changes. These are building blocks for developers, not a finished application.

Several questions can share one request, but separate parallel calls and repeated decision turns can increase requests and cost. Limit those calls and give each loop a stopping rule. Preserve cancellation, and test what happens when a service fails or an answer is uncertain.

Key takeaways

  1. Keep service failures visible instead of treating them as answers.
  2. Several questions may share one request; limit separate calls running at once.
  3. Give every repeating process a clear stopping rule.

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