diff --git a/.gitignore b/.gitignore
index 9db6b66..a23e096 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,3 +39,6 @@ Thumbs.db
 docs/superpowers/
 *.bundle
 **/src/main/frontend/generated
+
+# Claude Code tooling (worktrees, local settings)
+.claude/
diff --git a/observability-kit-spring/src/main/java/com/vaadin/observability/spring/ObservabilityConfiguration.java b/observability-kit-spring/src/main/java/com/vaadin/observability/spring/ObservabilityConfiguration.java
index 36a04d6..ef8fb4f 100644
--- a/observability-kit-spring/src/main/java/com/vaadin/observability/spring/ObservabilityConfiguration.java
+++ b/observability-kit-spring/src/main/java/com/vaadin/observability/spring/ObservabilityConfiguration.java
@@ -15,7 +15,6 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
-import com.vaadin.flow.server.VaadinRequest;
 import com.vaadin.observability.micrometer.MetricsServiceInitListener;
 import com.vaadin.observability.micrometer.ObservabilitySettings;
 
@@ -78,7 +77,7 @@ public class ObservabilityConfiguration {
             @Value("${vaadin.observability.requests:true}") boolean requests,
             @Value("${vaadin.observability.errors:true}") boolean errors,
             @Value("${vaadin.observability.traces:true}") boolean traces,
-            @Value("${vaadin.observability.traces.session-id:false}") boolean tracesSessionId,
+            @Value("${vaadin.observability.traces-session-id:false}") boolean tracesSessionId,
             @Value("${vaadin.observability.route-cardinality-limit:200}") int routeCardinalityLimit,
             @Value("${vaadin.observability.client:true}") boolean client,
             @Value("${vaadin.observability.client-rate-per-session:100}") int clientRatePerSession) {
@@ -119,38 +118,4 @@ MetricsServiceInitListener metricsServiceInitListener(
                 observationRegistry.getIfAvailable(), settings);
     }
 
-    /**
-     * Spring-aware subclass that skips the default Observation handler
-     * registration: in Spring/Boot setups the framework already registers a
-     * {@code DefaultMeterObservationHandler} on the shared
-     * {@link ObservationRegistry} (via Boot's
-     * {@code ObservationAutoConfiguration} or the user's own
-     * {@code @Configuration}), so re-registering here would double-emit Timers.
-     * It also delegates HTTP observation enrichment to
-     * {@link SpringHttpObservationEnricher}.
-     */
-    static class SpringMetricsServiceInitListener
-            extends MetricsServiceInitListener {
-
-        SpringMetricsServiceInitListener(MeterRegistry registry,
-                ObservationRegistry observationRegistry,
-                ObservabilitySettings settings) {
-            super(registry, observationRegistry, settings);
-        }
-
-        @Override
-        protected void installDefaultObservationHandlers(
-                ObservationRegistry observationRegistry,
-                MeterRegistry registry) {
-            // No-op: Spring Boot Actuator's ObservationAutoConfiguration
-            // registers DefaultMeterObservationHandler; re-registering would
-            // double-emit Timers.
-        }
-
-        @Override
-        protected void enrichHttpObservation(VaadinRequest request,
-                String requestType) {
-            SpringHttpObservationEnricher.enrich(request, requestType);
-        }
-    }
 }
diff --git a/observability-kit-spring/src/main/java/com/vaadin/observability/spring/SpringMetricsServiceInitListener.java b/observability-kit-spring/src/main/java/com/vaadin/observability/spring/SpringMetricsServiceInitListener.java
new file mode 100644
index 0000000..a20d0ea
--- /dev/null
+++ b/observability-kit-spring/src/main/java/com/vaadin/observability/spring/SpringMetricsServiceInitListener.java
@@ -0,0 +1,69 @@
+/**
+ * Copyright (C) 2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.spring;
+
+import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.observation.ObservationRegistry;
+
+import com.vaadin.flow.server.VaadinRequest;
+import com.vaadin.observability.micrometer.MetricsServiceInitListener;
+import com.vaadin.observability.micrometer.ObservabilitySettings;
+
+/**
+ * Spring/Boot-aware {@link MetricsServiceInitListener} that skips the default
+ * Observation handler registration and enriches the HTTP server observation.
+ * <p>
+ * In Spring/Boot setups the framework already registers a
+ * {@code DefaultMeterObservationHandler} on the shared
+ * {@link ObservationRegistry} (via Boot's {@code ObservationAutoConfiguration}
+ * or the user's own {@code @Configuration}), so re-registering here would
+ * double-emit Timers. HTTP observation enrichment is delegated to
+ * {@link SpringHttpObservationEnricher}, making the parent HTTP span render as
+ * e.g. {@code http post /vaadin/uidl} instead of the generic
+ * {@code http post /**}.
+ * <p>
+ * This class is declared {@code public} so it can be reused by both
+ * {@link ObservabilityConfiguration} (plain-Spring import) and the Boot
+ * auto-configuration starter.
+ */
+public final class SpringMetricsServiceInitListener
+        extends MetricsServiceInitListener {
+
+    /**
+     * Creates a new listener.
+     *
+     * @param registry
+     *            the Micrometer meter registry, must not be {@code null}
+     * @param observationRegistry
+     *            the Micrometer observation registry; may be {@code null} when
+     *            no {@link ObservationRegistry} bean is present — traces will
+     *            be skipped in that case
+     * @param settings
+     *            the observability settings, must not be {@code null}
+     */
+    public SpringMetricsServiceInitListener(MeterRegistry registry,
+            ObservationRegistry observationRegistry,
+            ObservabilitySettings settings) {
+        super(registry, observationRegistry, settings);
+    }
+
+    @Override
+    protected void installDefaultObservationHandlers(
+            ObservationRegistry observationRegistry, MeterRegistry registry) {
+        // No-op: Spring Boot Actuator's ObservationAutoConfiguration
+        // registers DefaultMeterObservationHandler; re-registering would
+        // double-emit Timers.
+    }
+
+    @Override
+    protected void enrichHttpObservation(VaadinRequest request,
+            String requestType) {
+        SpringHttpObservationEnricher.enrich(request, requestType);
+    }
+}
diff --git a/observability-kit-starter/pom.xml b/observability-kit-starter/pom.xml
new file mode 100644
index 0000000..cac9253
--- /dev/null
+++ b/observability-kit-starter/pom.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>com.vaadin</groupId>
+        <artifactId>observability-kit</artifactId>
+        <version>5.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>observability-kit-starter</artifactId>
+    <packaging>jar</packaging>
+    <name>Observability Kit :: Spring Boot Starter</name>
+    <description>Spring Boot auto-configuration for Observability Kit.</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.vaadin</groupId>
+            <artifactId>observability-kit-micrometer</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.vaadin</groupId>
+            <artifactId>observability-kit-spring</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-autoconfigure</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-micrometer-metrics</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-configuration-processor</artifactId>
+            <optional>true</optional>
+        </dependency>
+
+        <!-- Test -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+</project>
diff --git a/observability-kit-starter/src/main/java/com/vaadin/observability/spring/boot/ObservabilityAutoConfiguration.java b/observability-kit-starter/src/main/java/com/vaadin/observability/spring/boot/ObservabilityAutoConfiguration.java
new file mode 100644
index 0000000..fb450ef
--- /dev/null
+++ b/observability-kit-starter/src/main/java/com/vaadin/observability/spring/boot/ObservabilityAutoConfiguration.java
@@ -0,0 +1,69 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.spring.boot;
+
+import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.observation.ObservationRegistry;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.boot.micrometer.metrics.autoconfigure.CompositeMeterRegistryAutoConfiguration;
+import org.springframework.boot.micrometer.metrics.autoconfigure.MetricsAutoConfiguration;
+import org.springframework.context.annotation.Bean;
+
+import com.vaadin.flow.server.VaadinService;
+import com.vaadin.observability.micrometer.MetricsServiceInitListener;
+import com.vaadin.observability.micrometer.ObservabilitySettings;
+import com.vaadin.observability.spring.SpringMetricsServiceInitListener;
+
+/**
+ * Auto-configures the Observability Kit {@link MetricsServiceInitListener} when
+ * a {@link MeterRegistry} is present in the Spring context.
+ * <p>
+ * The starter pulls in Boot's Micrometer metrics auto-configuration, so a
+ * {@link MeterRegistry} is wired out of the box and this listener activates
+ * without further setup; the application only chooses the registry backend
+ * (Prometheus, OTLP, ...) and whether to expose Actuator endpoints. Ordered
+ * after {@link MetricsAutoConfiguration} and
+ * {@link CompositeMeterRegistryAutoConfiguration} so that registry is visible
+ * when this runs.
+ * <p>
+ * Activation is gated by the {@code vaadin.observability.enabled} property
+ * (default {@code true}); the listener is also skipped when the user supplies
+ * their own {@link MetricsServiceInitListener} bean.
+ */
+@AutoConfiguration(after = { MetricsAutoConfiguration.class,
+        CompositeMeterRegistryAutoConfiguration.class })
+@ConditionalOnClass({ MeterRegistry.class, VaadinService.class })
+@ConditionalOnProperty(prefix = "vaadin.observability", name = "enabled", havingValue = "true", matchIfMissing = true)
+@EnableConfigurationProperties(ObservabilityProperties.class)
+public class ObservabilityAutoConfiguration {
+
+    @Bean
+    @ConditionalOnMissingBean
+    ObservabilitySettings observabilitySettings(
+            ObservabilityProperties properties) {
+        return properties.toSettings();
+    }
+
+    @Bean
+    @ConditionalOnBean(MeterRegistry.class)
+    @ConditionalOnMissingBean(MetricsServiceInitListener.class)
+    MetricsServiceInitListener metricsServiceInitListener(
+            MeterRegistry registry,
+            ObjectProvider<ObservationRegistry> observationRegistry,
+            ObservabilitySettings settings) {
+        return new SpringMetricsServiceInitListener(registry,
+                observationRegistry.getIfAvailable(), settings);
+    }
+}
diff --git a/observability-kit-starter/src/main/java/com/vaadin/observability/spring/boot/ObservabilityProperties.java b/observability-kit-starter/src/main/java/com/vaadin/observability/spring/boot/ObservabilityProperties.java
new file mode 100644
index 0000000..7b556d2
--- /dev/null
+++ b/observability-kit-starter/src/main/java/com/vaadin/observability/spring/boot/ObservabilityProperties.java
@@ -0,0 +1,138 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.spring.boot;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+import com.vaadin.observability.micrometer.ObservabilitySettings;
+
+/**
+ * Boot-bound configuration properties under the {@code vaadin.observability}
+ * prefix. Converted to a plain {@link ObservabilitySettings} via
+ * {@link #toSettings()}.
+ */
+@ConfigurationProperties(prefix = "vaadin.observability")
+public class ObservabilityProperties {
+
+    private boolean enabled = true;
+    private boolean sessions = true;
+    private boolean uis = true;
+    private boolean navigation = true;
+    private boolean requests = true;
+    private boolean errors = true;
+    private boolean client = true;
+    private boolean traces = true;
+    private boolean tracesSessionId = false;
+    private int routeCardinalityLimit = 200;
+    private int clientRatePerSession = 100;
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    public void setEnabled(boolean enabled) {
+        this.enabled = enabled;
+    }
+
+    public boolean isSessions() {
+        return sessions;
+    }
+
+    public void setSessions(boolean sessions) {
+        this.sessions = sessions;
+    }
+
+    public boolean isUis() {
+        return uis;
+    }
+
+    public void setUis(boolean uis) {
+        this.uis = uis;
+    }
+
+    public boolean isNavigation() {
+        return navigation;
+    }
+
+    public void setNavigation(boolean navigation) {
+        this.navigation = navigation;
+    }
+
+    public boolean isRequests() {
+        return requests;
+    }
+
+    public void setRequests(boolean requests) {
+        this.requests = requests;
+    }
+
+    public boolean isErrors() {
+        return errors;
+    }
+
+    public void setErrors(boolean errors) {
+        this.errors = errors;
+    }
+
+    public boolean isClient() {
+        return client;
+    }
+
+    public void setClient(boolean client) {
+        this.client = client;
+    }
+
+    public boolean isTraces() {
+        return traces;
+    }
+
+    public void setTraces(boolean traces) {
+        this.traces = traces;
+    }
+
+    public boolean isTracesSessionId() {
+        return tracesSessionId;
+    }
+
+    public void setTracesSessionId(boolean tracesSessionId) {
+        this.tracesSessionId = tracesSessionId;
+    }
+
+    public int getRouteCardinalityLimit() {
+        return routeCardinalityLimit;
+    }
+
+    public void setRouteCardinalityLimit(int routeCardinalityLimit) {
+        this.routeCardinalityLimit = routeCardinalityLimit;
+    }
+
+    public int getClientRatePerSession() {
+        return clientRatePerSession;
+    }
+
+    public void setClientRatePerSession(int clientRatePerSession) {
+        this.clientRatePerSession = clientRatePerSession;
+    }
+
+    /**
+     * Converts these properties to an {@link ObservabilitySettings} instance.
+     * The {@code enabled} flag is not included in settings; it only gates
+     * activation of the auto-configuration.
+     *
+     * @return a new {@link ObservabilitySettings} built from the current
+     *         property values
+     */
+    public ObservabilitySettings toSettings() {
+        return ObservabilitySettings.builder().sessions(sessions).uis(uis)
+                .navigation(navigation).requests(requests).errors(errors)
+                .client(client).traces(traces).tracesSessionId(tracesSessionId)
+                .routeCardinalityLimit(routeCardinalityLimit)
+                .clientRatePerSession(clientRatePerSession).build();
+    }
+}
diff --git a/observability-kit-starter/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports b/observability-kit-starter/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports
new file mode 100644
index 0000000..4087369
--- /dev/null
+++ b/observability-kit-starter/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports
@@ -0,0 +1 @@
+com.vaadin.observability.spring.boot.ObservabilityAutoConfiguration
diff --git a/observability-kit-starter/src/test/java/com/vaadin/observability/spring/boot/ObservabilityAutoConfigurationTest.java b/observability-kit-starter/src/test/java/com/vaadin/observability/spring/boot/ObservabilityAutoConfigurationTest.java
new file mode 100644
index 0000000..53a6792
--- /dev/null
+++ b/observability-kit-starter/src/test/java/com/vaadin/observability/spring/boot/ObservabilityAutoConfigurationTest.java
@@ -0,0 +1,163 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.spring.boot;
+
+import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.micrometer.metrics.autoconfigure.CompositeMeterRegistryAutoConfiguration;
+import org.springframework.boot.micrometer.metrics.autoconfigure.MetricsAutoConfiguration;
+import org.springframework.boot.test.context.runner.ApplicationContextRunner;
+
+import com.vaadin.observability.micrometer.MetricsServiceInitListener;
+import com.vaadin.observability.micrometer.ObservabilitySettings;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Unit tests for {@link ObservabilityAutoConfiguration} using
+ * {@link ApplicationContextRunner}.
+ */
+class ObservabilityAutoConfigurationTest {
+
+    private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
+            .withConfiguration(AutoConfigurations
+                    .of(ObservabilityAutoConfiguration.class));
+
+    /**
+     * Default context with a MeterRegistry bean: both ObservabilitySettings and
+     * MetricsServiceInitListener should be present.
+     */
+    @Test
+    void defaultConfiguration_withMeterRegistry_registersBeansExpected() {
+        contextRunner
+                .withBean(SimpleMeterRegistry.class, SimpleMeterRegistry::new)
+                .run(context -> {
+                    assertThat(context)
+                            .hasSingleBean(ObservabilitySettings.class);
+                    assertThat(context)
+                            .hasSingleBean(MetricsServiceInitListener.class);
+                });
+    }
+
+    /**
+     * Real-starter behavior: with Boot's Micrometer metrics auto-configuration
+     * on the classpath (as the starter pulls it in) and no manually supplied
+     * registry, a {@link MeterRegistry} is wired out of the box and our
+     * listener activates on top of it.
+     */
+    @Test
+    void metricsAutoConfigurationPresent_wiresRegistryAndListener() {
+        contextRunner
+                .withConfiguration(
+                        AutoConfigurations.of(MetricsAutoConfiguration.class,
+                                CompositeMeterRegistryAutoConfiguration.class))
+                .run(context -> {
+                    assertThat(context).hasSingleBean(MeterRegistry.class);
+                    assertThat(context)
+                            .hasSingleBean(MetricsServiceInitListener.class);
+                });
+    }
+
+    /**
+     * When vaadin.observability.enabled=false, the auto-configuration should
+     * not activate and no beans should be registered.
+     */
+    @Test
+    void disabledProperty_doesNotRegisterBeans() {
+        contextRunner.withPropertyValues("vaadin.observability.enabled=false")
+                .run(context -> {
+                    assertThat(context)
+                            .doesNotHaveBean(MetricsServiceInitListener.class);
+                    assertThat(context)
+                            .doesNotHaveBean(ObservabilitySettings.class);
+                });
+    }
+
+    /**
+     * Property binding: sessions=false and route-cardinality-limit=42 should be
+     * reflected in the ObservabilitySettings bean.
+     */
+    @Test
+    void propertyBinding_reflectedInSettings() {
+        contextRunner
+                .withBean(SimpleMeterRegistry.class, SimpleMeterRegistry::new)
+                .withPropertyValues("vaadin.observability.sessions=false",
+                        "vaadin.observability.route-cardinality-limit=42")
+                .run(context -> {
+                    assertThat(context)
+                            .hasSingleBean(ObservabilitySettings.class);
+                    ObservabilitySettings settings = context
+                            .getBean(ObservabilitySettings.class);
+                    assertThat(settings.isSessions()).isFalse();
+                    assertThat(settings.getRouteCardinalityLimit())
+                            .isEqualTo(42);
+                });
+    }
+
+    /**
+     * Without a MeterRegistry bean, the MetricsServiceInitListener should not
+     * be registered (gated by @ConditionalOnBean(MeterRegistry.class)). The
+     * ObservabilitySettings bean is NOT gated on a MeterRegistry, so it must
+     * still be present.
+     */
+    @Test
+    void noMeterRegistry_doesNotRegisterListener() {
+        contextRunner.run(context -> {
+            assertThat(context)
+                    .doesNotHaveBean(MetricsServiceInitListener.class);
+            assertThat(context).hasSingleBean(ObservabilitySettings.class);
+        });
+    }
+
+    /**
+     * User-supplied ObservabilitySettings bean: our auto-configured settings
+     * bean should back off (@ConditionalOnMissingBean), and the custom bean
+     * should be used.
+     */
+    @Test
+    void userSuppliedSettings_autoConfigBacksOff() {
+        contextRunner
+                .withBean(SimpleMeterRegistry.class,
+                        SimpleMeterRegistry::new)
+                .withBean(ObservabilitySettings.class,
+                        () -> ObservabilitySettings.builder().sessions(false)
+                                .build())
+                .run(context -> {
+                    assertThat(context)
+                            .hasSingleBean(ObservabilitySettings.class);
+                    assertThat(context.getBean(ObservabilitySettings.class)
+                            .isSessions()).isFalse();
+                });
+    }
+
+    /**
+     * User-supplied MetricsServiceInitListener bean: our auto-configured
+     * listener should back off (@ConditionalOnMissingBean), and the custom bean
+     * should be used.
+     */
+    @Test
+    void userSuppliedListener_autoConfigBacksOff() {
+        MetricsServiceInitListener customListener = new MetricsServiceInitListener(
+                new SimpleMeterRegistry(),
+                ObservabilitySettings.builder().build());
+        contextRunner
+                .withBean("custom", MetricsServiceInitListener.class,
+                        () -> customListener)
+                .withBean(SimpleMeterRegistry.class, SimpleMeterRegistry::new)
+                .run(context -> {
+                    assertThat(context)
+                            .hasSingleBean(MetricsServiceInitListener.class);
+                    assertThat(
+                            context.getBean(MetricsServiceInitListener.class))
+                            .isSameAs(customListener);
+                });
+    }
+}
diff --git a/observability-kit-tests/observability-kit-tests-common/pom.xml b/observability-kit-tests/observability-kit-tests-common/pom.xml
new file mode 100644
index 0000000..f52dc27
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-common/pom.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.vaadin</groupId>
+    <artifactId>observability-kit-tests</artifactId>
+    <version>5.0-SNAPSHOT</version>
+  </parent>
+  <artifactId>observability-kit-tests-common</artifactId>
+
+  <packaging>jar</packaging>
+  <name>Shared test base for Observability-kit integration tests</name>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>vaadin-testbench-core-junit5</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.seleniumhq.selenium</groupId>
+      <artifactId>selenium-java</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter</artifactId>
+    </dependency>
+  </dependencies>
+
+</project>
diff --git a/observability-kit-tests/observability-kit-micrometer-tests/src/test/java/com/vaadin/observability/micrometer/tests/AbstractIT.java b/observability-kit-tests/observability-kit-tests-common/src/main/java/com/vaadin/observability/tests/common/AbstractIT.java
similarity index 92%
rename from observability-kit-tests/observability-kit-micrometer-tests/src/test/java/com/vaadin/observability/micrometer/tests/AbstractIT.java
rename to observability-kit-tests/observability-kit-tests-common/src/main/java/com/vaadin/observability/tests/common/AbstractIT.java
index ddaaa9f..6fb97c0 100644
--- a/observability-kit-tests/observability-kit-micrometer-tests/src/test/java/com/vaadin/observability/micrometer/tests/AbstractIT.java
+++ b/observability-kit-tests/observability-kit-tests-common/src/main/java/com/vaadin/observability/tests/common/AbstractIT.java
@@ -6,7 +6,7 @@
  * See <https://vaadin.com/commercial-license-and-service-terms> for the full
  * license.
  */
-package com.vaadin.observability.micrometer.tests;
+package com.vaadin.observability.tests.common;
 
 import java.lang.management.ManagementFactory;
 
@@ -28,12 +28,13 @@
 import com.vaadin.testbench.TestBench;
 
 /**
- * Base class for the Micrometer integration tests. Spins up a headless Chrome
- * driver (or connects to a hub when configured) and navigates to the view under
- * test before each test method.
+ * Base class for Observability Kit integration tests. Spins up a headless
+ * Chrome driver (or connects to a hub when configured) and navigates to the
+ * view under test before each test method.
  */
 @Execution(ExecutionMode.SAME_THREAD)
-abstract class AbstractIT extends BrowserTestBase implements DriverSupplier {
+public abstract class AbstractIT extends BrowserTestBase
+        implements DriverSupplier {
 
     static final int SERVER_PORT = Integer.getInteger("serverPort", 8080);
 
diff --git a/observability-kit-tests/observability-kit-micrometer-tests/pom.xml b/observability-kit-tests/observability-kit-tests-micrometer/pom.xml
similarity index 93%
rename from observability-kit-tests/observability-kit-micrometer-tests/pom.xml
rename to observability-kit-tests/observability-kit-tests-micrometer/pom.xml
index 90a7e56..816302e 100644
--- a/observability-kit-tests/observability-kit-micrometer-tests/pom.xml
+++ b/observability-kit-tests/observability-kit-tests-micrometer/pom.xml
@@ -3,10 +3,10 @@
   <modelVersion>4.0.0</modelVersion>
   <parent>
     <groupId>com.vaadin</groupId>
-    <artifactId>observability-kit-micrometer-test</artifactId>
+    <artifactId>observability-kit-tests</artifactId>
     <version>5.0-SNAPSHOT</version>
   </parent>
-  <artifactId>observability-kit-micrometer-tests</artifactId>
+  <artifactId>observability-kit-tests-micrometer</artifactId>
 
   <packaging>war</packaging>
   <name>Test Vaadin Micrometer integration on a real Jetty deployment</name>
@@ -17,6 +17,12 @@
       <artifactId>observability-kit-micrometer</artifactId>
       <version>${project.version}</version>
     </dependency>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>observability-kit-tests-common</artifactId>
+      <version>${project.version}</version>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>com.vaadin</groupId>
       <artifactId>vaadin-testbench-core-junit5</artifactId>
diff --git a/observability-kit-tests/observability-kit-micrometer-tests/src/main/frontend/index.html b/observability-kit-tests/observability-kit-tests-micrometer/src/main/frontend/index.html
similarity index 100%
rename from observability-kit-tests/observability-kit-micrometer-tests/src/main/frontend/index.html
rename to observability-kit-tests/observability-kit-tests-micrometer/src/main/frontend/index.html
diff --git a/observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/AppServlet.java b/observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/AppServlet.java
similarity index 93%
rename from observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/AppServlet.java
rename to observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/AppServlet.java
index c24c770..e945af0 100644
--- a/observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/AppServlet.java
+++ b/observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/AppServlet.java
@@ -6,7 +6,7 @@
  * See <https://vaadin.com/commercial-license-and-service-terms> for the full
  * license.
  */
-package com.vaadin.observability.micrometer.tests;
+package com.vaadin.observability.tests.micrometer;
 
 import jakarta.servlet.annotation.WebServlet;
 
diff --git a/observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/HelloView.java b/observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/HelloView.java
similarity index 93%
rename from observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/HelloView.java
rename to observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/HelloView.java
index 4666140..065cd89 100644
--- a/observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/HelloView.java
+++ b/observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/HelloView.java
@@ -6,7 +6,7 @@
  * See <https://vaadin.com/commercial-license-and-service-terms> for the full
  * license.
  */
-package com.vaadin.observability.micrometer.tests;
+package com.vaadin.observability.tests.micrometer;
 
 import com.vaadin.flow.component.html.Div;
 import com.vaadin.flow.component.html.Span;
diff --git a/observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/MetricsServlet.java b/observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/MetricsServlet.java
similarity index 97%
rename from observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/MetricsServlet.java
rename to observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/MetricsServlet.java
index 6a0e832..4893b28 100644
--- a/observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/MetricsServlet.java
+++ b/observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/MetricsServlet.java
@@ -6,7 +6,7 @@
  * See <https://vaadin.com/commercial-license-and-service-terms> for the full
  * license.
  */
-package com.vaadin.observability.micrometer.tests;
+package com.vaadin.observability.tests.micrometer;
 
 import jakarta.servlet.annotation.WebServlet;
 import jakarta.servlet.http.HttpServlet;
diff --git a/observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/MicrometerRegistry.java b/observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/MicrometerRegistry.java
similarity index 92%
rename from observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/MicrometerRegistry.java
rename to observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/MicrometerRegistry.java
index e115078..2730dec 100644
--- a/observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/MicrometerRegistry.java
+++ b/observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/MicrometerRegistry.java
@@ -6,7 +6,7 @@
  * See <https://vaadin.com/commercial-license-and-service-terms> for the full
  * license.
  */
-package com.vaadin.observability.micrometer.tests;
+package com.vaadin.observability.tests.micrometer;
 
 import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
 
diff --git a/observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/MicrometerSetup.java b/observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/MicrometerSetup.java
similarity index 94%
rename from observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/MicrometerSetup.java
rename to observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/MicrometerSetup.java
index adb77ec..b9bda05 100644
--- a/observability-kit-tests/observability-kit-micrometer-tests/src/main/java/com/vaadin/observability/micrometer/tests/MicrometerSetup.java
+++ b/observability-kit-tests/observability-kit-tests-micrometer/src/main/java/com/vaadin/observability/tests/micrometer/MicrometerSetup.java
@@ -6,7 +6,7 @@
  * See <https://vaadin.com/commercial-license-and-service-terms> for the full
  * license.
  */
-package com.vaadin.observability.micrometer.tests;
+package com.vaadin.observability.tests.micrometer;
 
 import jakarta.servlet.ServletContextEvent;
 import jakarta.servlet.ServletContextListener;
diff --git a/observability-kit-tests/observability-kit-micrometer-tests/src/test/java/com/vaadin/observability/micrometer/tests/StandaloneMetricsIT.java b/observability-kit-tests/observability-kit-tests-micrometer/src/test/java/com/vaadin/observability/tests/micrometer/StandaloneMetricsIT.java
similarity index 97%
rename from observability-kit-tests/observability-kit-micrometer-tests/src/test/java/com/vaadin/observability/micrometer/tests/StandaloneMetricsIT.java
rename to observability-kit-tests/observability-kit-tests-micrometer/src/test/java/com/vaadin/observability/tests/micrometer/StandaloneMetricsIT.java
index 1410e1c..2761704 100644
--- a/observability-kit-tests/observability-kit-micrometer-tests/src/test/java/com/vaadin/observability/micrometer/tests/StandaloneMetricsIT.java
+++ b/observability-kit-tests/observability-kit-tests-micrometer/src/test/java/com/vaadin/observability/tests/micrometer/StandaloneMetricsIT.java
@@ -6,7 +6,7 @@
  * See <https://vaadin.com/commercial-license-and-service-terms> for the full
  * license.
  */
-package com.vaadin.observability.micrometer.tests;
+package com.vaadin.observability.tests.micrometer;
 
 import java.io.BufferedReader;
 import java.io.IOException;
@@ -20,6 +20,7 @@
 import org.junit.jupiter.api.Assertions;
 
 import com.vaadin.flow.component.html.testbench.SpanElement;
+import com.vaadin.observability.tests.common.AbstractIT;
 import com.vaadin.testbench.BrowserTest;
 
 /**
diff --git a/observability-kit-tests/observability-kit-tests-spring/pom.xml b/observability-kit-tests/observability-kit-tests-spring/pom.xml
new file mode 100644
index 0000000..6d5cf62
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-spring/pom.xml
@@ -0,0 +1,190 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.vaadin</groupId>
+    <artifactId>observability-kit-tests</artifactId>
+    <version>5.0-SNAPSHOT</version>
+  </parent>
+  <artifactId>observability-kit-tests-spring</artifactId>
+
+  <packaging>war</packaging>
+  <name>Test Vaadin Observability Kit on a plain-Spring (non-Boot) Jetty deployment</name>
+  <description>
+    Integration test that wires observability-kit-spring into a plain Spring MVC WAR
+    (no Spring Boot) and verifies session / UI / request metrics are recorded.
+  </description>
+
+  <dependencies>
+    <!-- Kit Spring integration (plain, no Boot on its tree) -->
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>observability-kit-spring</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+    <!-- Plain Spring MVC for the WAR bootstrap -->
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-webmvc</artifactId>
+    </dependency>
+    <!-- Micrometer (observability-kit-spring brings it transitively, declared
+         here as direct dep so the MetricsServlet compile does not rely on
+         transitive resolution order) -->
+    <dependency>
+      <groupId>io.micrometer</groupId>
+      <artifactId>micrometer-core</artifactId>
+    </dependency>
+    <!-- Vaadin Flow -->
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>flow-server</artifactId>
+      <version>${flow.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>flow-client</artifactId>
+      <version>${flow.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>flow-html-components</artifactId>
+      <version>${flow.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>jakarta.servlet</groupId>
+      <artifactId>jakarta.servlet-api</artifactId>
+      <version>${servlet.api.version}</version>
+      <scope>provided</scope>
+    </dependency>
+
+    <!-- Test dependencies -->
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>observability-kit-tests-common</artifactId>
+      <version>${project.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>vaadin-testbench-core-junit5</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>flow-html-components-testbench</artifactId>
+      <version>${flow.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.seleniumhq.selenium</groupId>
+      <artifactId>selenium-java</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.assertj</groupId>
+      <artifactId>assertj-core</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <defaultGoal>jetty:run</defaultGoal>
+    <plugins>
+      <!-- Build the Vaadin frontend bundle at compile phase so Jetty can
+           serve it during integration tests. -->
+      <plugin>
+        <groupId>com.vaadin</groupId>
+        <artifactId>flow-maven-plugin</artifactId>
+        <version>${flow.version}</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>prepare-frontend</goal>
+              <goal>build-frontend</goal>
+            </goals>
+            <phase>compile</phase>
+          </execution>
+        </executions>
+      </plugin>
+      <!-- Run Jetty around integration tests -->
+      <plugin>
+        <groupId>org.eclipse.jetty.ee10</groupId>
+        <artifactId>jetty-ee10-maven-plugin</artifactId>
+        <!-- Pin to 12.1.8: 12.1.9 has a Windows synth-path URI bug
+             (jetty/jetty.project#15135) -->
+        <version>12.1.8</version>
+        <configuration>
+          <!-- Unique stop port/key so the Jetty shutdown handshake does not
+               collide with the observability-kit-tests-micrometer module.
+               The HTTP listen port stays Jetty's default 8080; the reactor
+               runs the IT modules sequentially, never concurrently. -->
+          <stopPort>8090</stopPort>
+          <stopKey>observability-kit-spring</stopKey>
+          <stopWait>5</stopWait>
+        </configuration>
+        <executions>
+          <execution>
+            <id>start-jetty</id>
+            <goals>
+              <goal>start</goal>
+            </goals>
+            <phase>pre-integration-test</phase>
+          </execution>
+          <execution>
+            <id>stop-jetty</id>
+            <goals>
+              <goal>stop</goal>
+            </goals>
+            <phase>post-integration-test</phase>
+          </execution>
+        </executions>
+      </plugin>
+      <!-- Run the *IT browser tests against the running Jetty. -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-failsafe-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>integration-test</goal>
+              <goal>verify</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <!-- Enforce that no Spring Boot dependency sneaks in; this WAR must
+           remain plain Spring. -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-enforcer-plugin</artifactId>
+        <version>3.6.3</version>
+        <executions>
+          <execution>
+            <id>enforce-no-spring-boot</id>
+            <goals>
+              <goal>enforce</goal>
+            </goals>
+            <phase>validate</phase>
+            <configuration>
+              <rules>
+                <bannedDependencies>
+                  <excludes>
+                    <!-- Plain-Spring project: no Spring Boot dependencies allowed -->
+                    <exclude>org.springframework.boot</exclude>
+                  </excludes>
+                </bannedDependencies>
+              </rules>
+              <fail>true</fail>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>
diff --git a/observability-kit-tests/observability-kit-tests-spring/src/main/frontend/index.html b/observability-kit-tests/observability-kit-tests-spring/src/main/frontend/index.html
new file mode 100644
index 0000000..eb0c53b
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-spring/src/main/frontend/index.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<!--
+This file is auto-generated by Vaadin.
+-->
+
+<html>
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover" />
+  <style>
+    html, body, #outlet {
+      height: 100%;
+      width: 100%;
+      margin: 0;
+    }
+  </style>
+  <!-- index.ts is included here automatically (either by the dev server or during the build) -->
+</head>
+<body>
+  <!-- This outlet div is where the views are rendered -->
+  <div id="outlet"></div>
+</body>
+</html>
diff --git a/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/AppConfiguration.java b/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/AppConfiguration.java
new file mode 100644
index 0000000..119fe1b
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/AppConfiguration.java
@@ -0,0 +1,35 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.tests.spring;
+
+import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
+import com.vaadin.observability.spring.ObservabilityConfiguration;
+
+/**
+ * Plain Spring (non-Boot) configuration that imports the Observability Kit
+ * Spring wiring and provides a {@link MeterRegistry}. Component-scans the test
+ * package for Spring-managed beans; the {@code @WebServlet} metrics servlet is
+ * registered by the servlet container, not by Spring.
+ */
+@Configuration
+@ComponentScan
+@Import(ObservabilityConfiguration.class)
+public class AppConfiguration {
+
+    @Bean
+    public MeterRegistry meterRegistry() {
+        return new SimpleMeterRegistry();
+    }
+}
diff --git a/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/AppWebAppInitializer.java b/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/AppWebAppInitializer.java
new file mode 100644
index 0000000..e5e06de
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/AppWebAppInitializer.java
@@ -0,0 +1,25 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.tests.spring;
+
+import java.util.Collection;
+import java.util.List;
+
+import com.vaadin.flow.spring.VaadinMVCWebAppInitializer;
+
+/**
+ * Bootstraps the plain-Spring MVC context with {@link AppConfiguration}.
+ */
+public class AppWebAppInitializer extends VaadinMVCWebAppInitializer {
+
+    @Override
+    protected Collection<Class<?>> getConfigurationClasses() {
+        return List.of(AppConfiguration.class);
+    }
+}
diff --git a/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/HelloView.java b/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/HelloView.java
new file mode 100644
index 0000000..8ac4e85
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/HelloView.java
@@ -0,0 +1,27 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.tests.spring;
+
+import com.vaadin.flow.component.html.Div;
+import com.vaadin.flow.component.html.Span;
+import com.vaadin.flow.router.Route;
+
+/**
+ * Simple landing view; opening it drives a real Vaadin session, UI and
+ * navigation through the framework so the Micrometer binders fire.
+ */
+@Route("")
+public class HelloView extends Div {
+
+    public HelloView() {
+        Span greeting = new Span("Hello micrometer spring");
+        greeting.setId("greeting");
+        add(greeting);
+    }
+}
diff --git a/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/MetricsServlet.java b/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/MetricsServlet.java
new file mode 100644
index 0000000..6c5ae82
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-spring/src/main/java/com/vaadin/observability/tests/spring/MetricsServlet.java
@@ -0,0 +1,71 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.tests.spring;
+
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.concurrent.TimeUnit;
+
+import io.micrometer.core.instrument.Counter;
+import io.micrometer.core.instrument.Gauge;
+import io.micrometer.core.instrument.Meter;
+import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.core.instrument.Tag;
+import io.micrometer.core.instrument.Timer;
+import org.springframework.web.context.WebApplicationContext;
+import org.springframework.web.context.support.WebApplicationContextUtils;
+
+/**
+ * Dumps the Spring-managed {@link MeterRegistry} as a deterministic, sorted
+ * plain-text format that the IT can scrape via HTTP.
+ */
+@WebServlet(urlPatterns = "/metrics", asyncSupported = false)
+public class MetricsServlet extends HttpServlet {
+
+    @Override
+    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+            throws IOException {
+        WebApplicationContext ctx = WebApplicationContextUtils
+                .getRequiredWebApplicationContext(getServletContext());
+        MeterRegistry registry = ctx.getBean(MeterRegistry.class);
+        resp.setContentType("text/plain; charset=utf-8");
+        try (PrintWriter writer = resp.getWriter()) {
+            registry.getMeters().stream()
+                    .sorted((a, b) -> a.getId().getName()
+                            .compareTo(b.getId().getName()))
+                    .forEach(meter -> writeMeter(writer, meter));
+        }
+    }
+
+    private void writeMeter(PrintWriter writer, Meter meter) {
+        String id = formatId(meter);
+        if (meter instanceof Counter c) {
+            writer.printf("%s count=%.0f%n", id, c.count());
+        } else if (meter instanceof Gauge g) {
+            writer.printf("%s value=%.0f%n", id, g.value());
+        } else if (meter instanceof Timer t) {
+            writer.printf("%s count=%d total_ms=%.3f%n", id, t.count(),
+                    t.totalTime(TimeUnit.MILLISECONDS));
+        }
+    }
+
+    private String formatId(Meter meter) {
+        StringBuilder sb = new StringBuilder(meter.getId().getName());
+        for (Tag tag : meter.getId().getTagsAsIterable()) {
+            sb.append(' ').append(tag.getKey()).append('=')
+                    .append(tag.getValue());
+        }
+        return sb.toString();
+    }
+}
diff --git a/observability-kit-tests/observability-kit-tests-spring/src/test/java/com/vaadin/observability/tests/spring/SpringMetricsIT.java b/observability-kit-tests/observability-kit-tests-spring/src/test/java/com/vaadin/observability/tests/spring/SpringMetricsIT.java
new file mode 100644
index 0000000..eed3a83
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-spring/src/test/java/com/vaadin/observability/tests/spring/SpringMetricsIT.java
@@ -0,0 +1,86 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.tests.spring;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URI;
+import java.nio.charset.StandardCharsets;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import com.vaadin.flow.component.html.testbench.SpanElement;
+import com.vaadin.observability.tests.common.AbstractIT;
+import com.vaadin.testbench.BrowserTest;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Drives a real plain-Spring Vaadin Flow page in Chrome and asserts that the
+ * Spring-managed {@code MeterRegistry} (provided through
+ * {@code ObservabilityConfiguration}) recorded session / UI / request activity.
+ */
+public class SpringMetricsIT extends AbstractIT {
+
+    @Override
+    protected String getTestPath() {
+        return "/";
+    }
+
+    @BrowserTest
+    public void viewLoadDrivesSessionAndUiMetrics() throws IOException {
+        SpanElement greeting = $(SpanElement.class).id("greeting");
+        assertThat(greeting.getText()).isEqualTo("Hello micrometer spring");
+
+        String metrics = fetchMetrics();
+
+        assertThat(meterValue(metrics, "vaadin.sessions.created", "count"))
+                .as("vaadin.sessions.created count")
+                .isGreaterThanOrEqualTo(1.0);
+        assertThat(meterValue(metrics, "vaadin.ui.created", "count"))
+                .as("vaadin.ui.created count").isGreaterThanOrEqualTo(1.0);
+        assertThat(meterValue(metrics, "vaadin.sessions.active", "value"))
+                .as("vaadin.sessions.active value").isGreaterThanOrEqualTo(1.0);
+        assertThat(metrics).withFailMessage(
+                "expected a vaadin.request.duration sample in the /metrics output")
+                .contains("vaadin.request.duration");
+    }
+
+    private String fetchMetrics() throws IOException {
+        HttpURLConnection conn = (HttpURLConnection) URI
+                .create(getRootURL() + "/metrics").toURL().openConnection();
+        conn.setRequestMethod("GET");
+        assertThat(conn.getResponseCode()).isEqualTo(200);
+        StringBuilder out = new StringBuilder();
+        try (BufferedReader reader = new BufferedReader(new InputStreamReader(
+                conn.getInputStream(), StandardCharsets.UTF_8))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                out.append(line).append('\n');
+            }
+        }
+        return out.toString();
+    }
+
+    /**
+     * Finds the numeric value of {@code field} on the first line that starts
+     * with {@code meterName}. Returns {@code -1.0} if not present.
+     */
+    private static double meterValue(String metricsBody, String meterName,
+            String field) {
+        Pattern pattern = Pattern.compile(
+                "^" + Pattern.quote(meterName) + "(?:\\s.*)?\\s"
+                        + Pattern.quote(field) + "=([0-9]+(?:\\.[0-9]+)?)",
+                Pattern.MULTILINE);
+        Matcher m = pattern.matcher(metricsBody);
+        return m.find() ? Double.parseDouble(m.group(1)) : -1.0;
+    }
+}
diff --git a/observability-kit-tests/observability-kit-tests-starter/pom.xml b/observability-kit-tests/observability-kit-tests-starter/pom.xml
new file mode 100644
index 0000000..3d00266
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-starter/pom.xml
@@ -0,0 +1,163 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.vaadin</groupId>
+    <artifactId>observability-kit-tests</artifactId>
+    <version>5.0-SNAPSHOT</version>
+  </parent>
+  <artifactId>observability-kit-tests-starter</artifactId>
+
+  <packaging>jar</packaging>
+  <name>Test Vaadin Observability Kit Starter on Spring Boot + Prometheus</name>
+  <description>
+    Integration test that boots a Spring Boot application using observability-kit-starter
+    auto-configuration and verifies session / UI / request metrics are exported via the
+    Actuator Prometheus endpoint.
+  </description>
+
+  <dependencies>
+    <!-- Boot starter under test — provides auto-config transitively -->
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>observability-kit-starter</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>vaadin-spring</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>flow-server</artifactId>
+      <version>${flow.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>flow-html-components</artifactId>
+      <version>${flow.version}</version>
+    </dependency>
+
+    <!-- Spring Boot web (Jetty, not Tomcat) -->
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-webmvc</artifactId>
+      <exclusions>
+        <exclusion>
+          <groupId>org.springframework.boot</groupId>
+          <artifactId>spring-boot-starter-tomcat</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-jetty</artifactId>
+    </dependency>
+
+    <!-- Actuator + Prometheus registry -->
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-actuator</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>io.micrometer</groupId>
+      <artifactId>micrometer-registry-prometheus</artifactId>
+    </dependency>
+
+    <!-- Test dependencies -->
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>observability-kit-tests-common</artifactId>
+      <version>${project.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>vaadin-testbench-core-junit5</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>flow-html-components-testbench</artifactId>
+      <version>${flow.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.seleniumhq.selenium</groupId>
+      <artifactId>selenium-java</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.assertj</groupId>
+      <artifactId>assertj-core</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <groupId>org.springframework.boot</groupId>
+          <artifactId>spring-boot-maven-plugin</artifactId>
+          <version>${spring.boot.version}</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+
+    <plugins>
+      <!-- Build the Vaadin frontend bundle so Boot can serve it -->
+      <plugin>
+        <groupId>com.vaadin</groupId>
+        <artifactId>flow-maven-plugin</artifactId>
+        <version>${flow.version}</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>prepare-frontend</goal>
+              <goal>build-frontend</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <!-- Boot app lifecycle around integration tests -->
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>pre-integration-test</id>
+            <goals>
+              <goal>start</goal>
+            </goals>
+          </execution>
+          <execution>
+            <id>post-integration-test</id>
+            <goals>
+              <goal>stop</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <!-- Run the *IT browser tests against the running Boot app -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-failsafe-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>integration-test</goal>
+              <goal>verify</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>
diff --git a/observability-kit-tests/observability-kit-tests-starter/src/main/frontend/index.html b/observability-kit-tests/observability-kit-tests-starter/src/main/frontend/index.html
new file mode 100644
index 0000000..7e3cdd4
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-starter/src/main/frontend/index.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<!--
+This file is auto-generated by Vaadin.
+-->
+
+<html>
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover" />
+  <style>
+    html, body, #outlet {
+      height: 100%;
+      width: 100%;
+      margin: 0;
+    }
+
+    /*
+    Fix app height for iOS home screen apps:
+    - 100% doesn't cover the entire screen.
+    - 100vh would work on iOS 18 but not on iOS 17 (too tall in Safari, correct in standalone mode).
+    - 100lvh is too tall in Safari. 100svh is too short in standalone apps.
+    - 100dvh doesn't seem to work on first render when launched from home screen (initially like 100svh, then changes to 100lvh when you try to scroll the view).
+    - So, we use 100% for the regular case (Safari and other browsers), and 100lvh for iOS home screen apps. Note, that the `display-mode: standalone` media query only works if the webmanifest defines `"display": "standalone"`.
+    */
+    @supports (-webkit-touch-callout: none) {
+      @media (display-mode: standalone) {
+        html {
+          height: 100lvh;
+        }
+      }
+    }
+  </style>
+  <!-- index.ts is included here automatically (either by the dev server or during the build) -->
+</head>
+<body>
+  <!-- This outlet div is where the views are rendered -->
+  <div id="outlet"></div>
+</body>
+</html>
diff --git a/observability-kit-tests/observability-kit-tests-starter/src/main/java/com/vaadin/observability/tests/starter/Application.java b/observability-kit-tests/observability-kit-tests-starter/src/main/java/com/vaadin/observability/tests/starter/Application.java
new file mode 100644
index 0000000..1b213e1
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-starter/src/main/java/com/vaadin/observability/tests/starter/Application.java
@@ -0,0 +1,20 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.tests.starter;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}
diff --git a/observability-kit-tests/observability-kit-tests-starter/src/main/java/com/vaadin/observability/tests/starter/HelloView.java b/observability-kit-tests/observability-kit-tests-starter/src/main/java/com/vaadin/observability/tests/starter/HelloView.java
new file mode 100644
index 0000000..9942811
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-starter/src/main/java/com/vaadin/observability/tests/starter/HelloView.java
@@ -0,0 +1,27 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.tests.starter;
+
+import com.vaadin.flow.component.html.Div;
+import com.vaadin.flow.component.html.Span;
+import com.vaadin.flow.router.Route;
+
+/**
+ * Simple landing view; opening it drives a real Vaadin session, UI and
+ * navigation through the framework so the Micrometer binders fire.
+ */
+@Route("")
+public class HelloView extends Div {
+
+    public HelloView() {
+        Span greeting = new Span("Hello micrometer boot");
+        greeting.setId("greeting");
+        add(greeting);
+    }
+}
diff --git a/observability-kit-tests/observability-kit-tests-starter/src/main/resources/application.properties b/observability-kit-tests/observability-kit-tests-starter/src/main/resources/application.properties
new file mode 100644
index 0000000..3d946f4
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-starter/src/main/resources/application.properties
@@ -0,0 +1,3 @@
+server.port=8080
+management.endpoints.web.exposure.include=prometheus,metrics
+management.endpoint.prometheus.access=unrestricted
diff --git a/observability-kit-tests/observability-kit-tests-starter/src/test/java/com/vaadin/observability/tests/starter/BootMetricsIT.java b/observability-kit-tests/observability-kit-tests-starter/src/test/java/com/vaadin/observability/tests/starter/BootMetricsIT.java
new file mode 100644
index 0000000..3155ace
--- /dev/null
+++ b/observability-kit-tests/observability-kit-tests-starter/src/test/java/com/vaadin/observability/tests/starter/BootMetricsIT.java
@@ -0,0 +1,92 @@
+/**
+ * Copyright (C) 2000-2026 Vaadin Ltd
+ *
+ * This program is available under Vaadin Commercial License and Service Terms.
+ *
+ * See <https://vaadin.com/commercial-license-and-service-terms> for the full
+ * license.
+ */
+package com.vaadin.observability.tests.starter;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URI;
+import java.nio.charset.StandardCharsets;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import com.vaadin.flow.component.html.testbench.SpanElement;
+import com.vaadin.observability.tests.common.AbstractIT;
+import com.vaadin.testbench.BrowserTest;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Drives a Spring Boot + {@code observability-kit-starter} app in Chrome and
+ * asserts the auto-configured binders move Vaadin meters into the Prometheus
+ * registry, scraping results via the Actuator Prometheus endpoint.
+ *
+ * <p>
+ * Prometheus / OpenMetrics treats the {@code _created} suffix as a special
+ * timestamp marker and drops it from counter names, so the Micrometer counter
+ * {@code vaadin.sessions.created} is emitted as {@code vaadin_sessions_total}
+ * (and {@code vaadin.ui.created} as {@code vaadin_ui_total}).
+ */
+public class BootMetricsIT extends AbstractIT {
+
+    @Override
+    protected String getTestPath() {
+        return "/";
+    }
+
+    @BrowserTest
+    public void viewLoadDrivesMetricsExposedViaActuator() throws IOException {
+        SpanElement greeting = $(SpanElement.class).id("greeting");
+        assertThat(greeting.getText()).isEqualTo("Hello micrometer boot");
+
+        String body = fetchPrometheus();
+
+        assertThat(meterValue(body, "vaadin_sessions_total"))
+                .as("vaadin_sessions_total").isGreaterThanOrEqualTo(1.0);
+        assertThat(meterValue(body, "vaadin_ui_total")).as("vaadin_ui_total")
+                .isGreaterThanOrEqualTo(1.0);
+        assertThat(meterValue(body, "vaadin_sessions_active"))
+                .as("vaadin_sessions_active").isGreaterThanOrEqualTo(1.0);
+        assertThat(body).withFailMessage(
+                "expected a vaadin_request_duration_seconds sample in the Prometheus scrape")
+                .contains("vaadin_request_duration_seconds");
+    }
+
+    private String fetchPrometheus() throws IOException {
+        HttpURLConnection conn = (HttpURLConnection) URI
+                .create(getRootURL() + "/actuator/prometheus").toURL()
+                .openConnection();
+        conn.setRequestMethod("GET");
+        assertThat(conn.getResponseCode()).isEqualTo(200);
+        StringBuilder out = new StringBuilder();
+        try (BufferedReader reader = new BufferedReader(new InputStreamReader(
+                conn.getInputStream(), StandardCharsets.UTF_8))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                out.append(line).append('\n');
+            }
+        }
+        return out.toString();
+    }
+
+    /**
+     * Returns the numeric value of the first Prometheus sample line whose
+     * metric name matches {@code meterName}. Lines with or without labels are
+     * accepted. Returns {@code -1.0} if no match is found.
+     */
+    private static double meterValue(String prometheusBody, String meterName) {
+        Pattern pattern = Pattern.compile(
+                "^" + Pattern.quote(meterName) + "(?:\\{[^}]*\\})?\\s+"
+                        + "([0-9]+(?:\\.[0-9]+)?(?:[eE][-+]?[0-9]+)?)",
+                Pattern.MULTILINE);
+        Matcher m = pattern.matcher(prometheusBody);
+        return m.find() ? Double.parseDouble(m.group(1)) : -1.0;
+    }
+}
diff --git a/observability-kit-tests/pom.xml b/observability-kit-tests/pom.xml
index 62c31ab..0a925ab 100644
--- a/observability-kit-tests/pom.xml
+++ b/observability-kit-tests/pom.xml
@@ -6,13 +6,16 @@
     <artifactId>observability-kit</artifactId>
     <version>5.0-SNAPSHOT</version>
   </parent>
-  <artifactId>observability-kit-micrometer-test</artifactId>
+  <artifactId>observability-kit-tests</artifactId>
 
   <packaging>pom</packaging>
-  <name>Integration tests for Observability-kit Micrometer integration</name>
+  <name>Integration tests for Observability-kit</name>
 
   <modules>
-    <module>observability-kit-micrometer-tests</module>
+    <module>observability-kit-tests-common</module>
+    <module>observability-kit-tests-micrometer</module>
+    <module>observability-kit-tests-spring</module>
+    <module>observability-kit-tests-starter</module>
   </modules>
 
   <dependencyManagement>
diff --git a/pom.xml b/pom.xml
index b3c95f9..4b53e3b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -27,6 +27,7 @@
     <modules>
         <module>observability-kit-micrometer</module>
         <module>observability-kit-spring</module>
+        <module>observability-kit-starter</module>
     </modules>
 
     <properties>