evaluate-koog

name	evaluate-koog
description	Sets up evaluation of Koog AI agents using Dokimos. Use this skill when the user wants to evaluate, test, or benchmark a Koog agent, or integrate Koog with Dokimos evaluations. Also use when the user mentions Koog agents, AI agent evaluation, or agent testing with Dokimos.

Evaluate Koog Agent

Set up Dokimos evaluation for a Koog AI agent. The user will describe their agent and evaluation goals via $ARGUMENTS.

Where things live

• Koog support: dokimos-koog/src/main/kotlin/dev/dokimos/koog/KoogSupport.kt
• Trace collector: dokimos-koog/src/main/kotlin/dev/dokimos/koog/KoogTraceCollector.kt
• Koog tests: dokimos-koog/src/test/kotlin/dev/dokimos/koog/
• Maven dependency: dev.dokimos:dokimos-koog

Before writing code, read KoogSupport.kt to understand the available utilities.

Key functions

KoogSupport.kt provides:

• asJudge(agentCall: suspend (String) -> String) — wraps any suspend function into a JudgeLM
• asJudge(agent: () -> AIAgent<String, String>) — wraps a Koog agent factory into a JudgeLM
• AIAgent.runBlocking(input, context) — extension to run a Koog agent synchronously

Setting up evaluation

Using a Koog agent as the system under test

val agent: () -> AIAgent<String, String> = { createMyAgent() }

val task = Task { example ->
    val input = example.inputs()["input"] as String
    val output = agent().runBlocking(input)
    mapOf("output" to output)
}

val result = Experiment.builder()
    .name("Koog Agent Evaluation")
    .dataset(dataset)
    .task(task)
    .evaluator(ExactMatchEvaluator.builder().build())
    .build()
    .run()

Using a Koog agent as a judge

val judge = asJudge { prompt -> myAgent().run(prompt) }
// or
val judge = asJudge { createMyAgent() }

val evaluator = LLMJudgeEvaluator.builder()
    .name("helpfulness")
    .judge(judge)
    .criteria("Is the response helpful and accurate?")
    .evaluationParams(listOf(
        EvalTestCaseParam.INPUT,
        EvalTestCaseParam.ACTUAL_OUTPUT,
        EvalTestCaseParam.EXPECTED_OUTPUT
    ))
    .threshold(0.7)
    .build()

Kotlin DSL (with dokimos-kotlin)

If the user has dokimos-kotlin as a dependency, use the DSL:

val result = experiment {
    name = "Koog Agent Eval"
    dataset = Dataset.fromJson(Path.of("datasets/qa.json"))
    task { example ->
        val output = agent().runBlocking(example.input())
        mapOf("output" to output)
    }
    evaluator(ExactMatchEvaluator.builder().build())
}

Dependencies

The user needs dokimos-koog:

<dependency>
    <groupId>dev.dokimos</groupId>
    <artifactId>dokimos-koog</artifactId>
    <version>${dokimos.version}</version>
</dependency>

Koog itself is a provided-scope dependency — the user must bring their own version. The collector reads the event context reflectively, so one build works across Koog 0.6.4 through 1.0.0.

Evaluating tool calls, not just final output

If the Koog agent uses tools, capture its tool calls with KoogTraceCollector and evaluate them with the agent evaluators. Install the collector on the agent's event handler with collectAgentTrace, run the agent, then read the trace.

import dev.dokimos.koog.KoogTraceCollector
import dev.dokimos.koog.collectAgentTrace

val collector = KoogTraceCollector()
val agent = AIAgent(/* ... */) {
    install(EventHandler) { collectAgentTrace(collector) }
}

val response = agent.run(userInput)
val testCase = collector.toAgentTrace(response).toTestCase(userInput, tools)
val validity = toolCallValidity { }.evaluate(testCase)

For the full agent evaluator set, use the evaluate-agent skill.

Steps

1. Understand from $ARGUMENTS what the Koog agent does and how it's constructed
2. Determine if the agent is the system under test, the judge, or both
3. Create a dataset appropriate for the agent's domain
4. Wire up the evaluation using KoogSupport utilities
5. Write tests in Kotlin using MockK for mocking