> ## Documentation Index
> Fetch the complete documentation index at: https://getskydive.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Jev evaluation

> Let your agents check judgment calls with a fast, calibrated evaluation model

Your agents make dozens of small judgment calls a day: is this draft on-brand, does this reply answer the question, which task should come first. Usually they judge their own work. [Jev](https://typesafe.ai), from TypeSafe.ai, gives them a second opinion: a purpose-built evaluation model that returns typed, calibrated decisions in milliseconds, at a fraction of the cost of a full model call.

## What it does

Jev answers questions about a piece of content with three answer types:

* **Yes/no with confidence** ("Was the ticket resolved quickly?")
* **One choice from a list** ("Which of these four categories fits?")
* **A score on a scale** ("Rate this draft 1 to 10")

Every answer ships with a calibrated probability, so an agent can act on confident answers and flag uncertain ones for you instead of guessing.

## What agents use it for

A few patterns that work well:

* **Self-review before shipping.** An agent drafts an email, then asks Jev whether the tone is professional and the ask is clear before sending.
* **Routing.** An inbound request comes in; Jev picks which agent or workflow should handle it.
* **Quality gates in routines.** A [scheduled run](https://getskydive.com/docs/agents/routines.md) scores each batch of output and only surfaces the ones above threshold.
* **Cheap checks in loops.** When an agent would otherwise call a full model to grade something, Jev does it faster and for a fraction of the cost.

## How to use it

Ask your agent in plain language:

```text theme={null}
Before you send that reply, check with Jev that the tone is professional and the ask is clear. If either scores below 0.8 confidence, show me the draft instead.
```

Under the hood, agents call it with the `platform beta jev` command. The full syntax, flags, and question format are in the [beta commands reference](https://getskydive.com/docs/api-reference/cli/beta).

> [!NOTE]
>
> Jev is a beta integration: it works today, and the command surface may change as it matures. Authentication runs through the platform's built-in proxy, so there's no API key to set up.

> [card] [Jev command reference](https://getskydive.com/docs/api-reference/cli/beta)
>
> Flags, question types, and examples for `platform beta jev`.


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