Codeagent/step 06 add reasoning

examples/code-agent/step-06-add-reasoning/Module.md

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+# Module Code Agent (Step 4)
+
+Code Agent example.

examples/code-agent/step-06-add-reasoning/README.md

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+# Code Agent Example — Step 04: Add Sub‑agent
+
+Run a code‑editing agent that can also delegate smart "find in codebase" queries to a sub‑agent.
+
+## Quick start
+1) Build (from repo root):
+```bash
+./gradlew -p examples/code-agent/step-04-add-subagent shadowJar
+```
+The JAR: `examples/code-agent/step-04-add-subagent/build/libs/code-agent-all.jar`.
+
+2) Run (macOS/Linux):
+```bash
+OPENAI_API_KEY=sk-... \
+LANGFUSE_PUBLIC_KEY=pk-... \
+LANGFUSE_SECRET_KEY=sk-... \
+LANGFUSE_HOST=https://langfuse.labs.jb.gg \
+LANGFUSE_SESSION_ID=my-session \
+java -jar examples/code-agent/step-04-add-subagent/build/libs/code-agent-all.jar \
+"/absolute/path/to/project" \
+"task description"
+```
+Windows (PowerShell): set the env vars with `$env:VAR = "..."` then run the same `java -jar ...` command.
+
+## Arguments
+- 1st: absolute path to the target project.
+- 2nd: natural‑language task for the agent (quote if it has spaces).
+
+## Environment
+- Required to run: `OPENAI_API_KEY`.
+- Observability (Langfuse): all four are required to enable it — `LANGFUSE_PUBLIC_KEY`, `LANGFUSE_SECRET_KEY`, `LANGFUSE_HOST`, `LANGFUSE_SESSION_ID`. If any are missing or blank, Langfuse is disabled and the program prints which ones are missing.
+- Optional: `BRAVE_MODE=true` to auto‑approve shell commands (use with care).
+
+## Notes
+- JDK 17+ required. Internet access needed.
+- Entry point: `src/main/kotlin/Main.kt`.
+- If the JAR isn’t found, make sure the build completed and the file exists at the path above.

examples/code-agent/step-06-add-reasoning/build.gradle.kts

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+plugins {
+    alias(libs.plugins.kotlin.jvm)
+    alias(libs.plugins.shadow)
+    application
+}
+
+application.mainClass.set("ai.koog.agents.examples.codeagent.step06.MainKt")
+
+dependencies {
+    implementation("ai.koog:koog-agents")
+    implementation(libs.kotlinx.coroutines.core)
+    implementation(libs.logback.classic)
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
+
+tasks.shadowJar {
+    archiveBaseName.set("code-agent")
+    mergeServiceFiles()
+}

examples/code-agent/step-06-add-reasoning/gradle.properties

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+#Kotlin
+kotlin.code.style=official
+kotlin.daemon.jvmargs=-Xmx4096M
+
+#Gradle
+org.gradle.jvmargs=-Xmx4096M -Dfile.encoding=UTF-8
+org.gradle.parallel=true
+org.gradle.caching=true

examples/code-agent/step-06-add-reasoning/gradle/libs.versions.toml

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+[versions]
+kotlin = "2.2.20"
+kotlinx-coroutines = "1.10.2"
+kotlinx-serialization = "1.8.1"
+logback = "1.5.13"
+shadow = "9.1.0"
+
+[libraries]
+kotlinx-coroutines-core = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-core", version.ref = "kotlinx-coroutines" }
+logback-classic = { module = "ch.qos.logback:logback-classic", version.ref = "logback" }
+
+[plugins]
+kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin" }
+shadow = { id = "com.gradleup.shadow", version.ref = "shadow" }

examples/code-agent/step-06-add-reasoning/gradle/wrapper/gradle-wrapper.properties

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists