diff --git a/platform/xdebugger-impl/backend/src/com/intellij/platform/debugger/impl/backend/BackendXDebuggerValueMarkupApi.kt b/platform/xdebugger-impl/backend/src/com/intellij/platform/debugger/impl/backend/BackendXDebuggerValueMarkupApi.kt
index ab664de4d5c9..7b32b9d1d623 100644
--- a/platform/xdebugger-impl/backend/src/com/intellij/platform/debugger/impl/backend/BackendXDebuggerValueMarkupApi.kt
+++ b/platform/xdebugger-impl/backend/src/com/intellij/platform/debugger/impl/backend/BackendXDebuggerValueMarkupApi.kt
@@ -6,9 +6,11 @@ import com.intellij.platform.debugger.impl.rpc.XValueMarkerDto
 import com.intellij.ui.JBColor
 import com.intellij.xdebugger.impl.XDebugSessionImpl
 import com.intellij.xdebugger.impl.frame.XValueMarkers
+import com.intellij.xdebugger.impl.rpc.XDebugSessionId
 import com.intellij.xdebugger.impl.rpc.XValueId
 import com.intellij.xdebugger.impl.rpc.models.BackendXValueModel
 import com.intellij.xdebugger.impl.rpc.models.BackendXValueModelsManager
+import com.intellij.xdebugger.impl.rpc.models.findValue
 import com.intellij.xdebugger.impl.ui.tree.ValueMarkup
 import org.jetbrains.concurrency.await
 
@@ -32,6 +34,11 @@ internal class BackendXDebuggerValueMarkupApi : XDebuggerValueMarkupApi {
     updateMarkersForAllXValueModels(markers, session)
   }
 
+  override suspend fun clear(xDebugSessionId: XDebugSessionId) {
+    val session = xDebugSessionId.findValue() ?: return
+    session.getValueMarkers()?.clear()
+  }
+
   private fun updateMarkersForAllXValueModels(markers: XValueMarkers<*, *>, session: XDebugSessionImpl) {
     val sessionXValueModels = BackendXValueModelsManager.getInstance(session.project).getXValueModelsForSession(session)
     // TODO[IJPL-160146]: Don't update all the xValues, since some markers may not be changed
diff --git a/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXValueMarkers.kt b/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXValueMarkers.kt
index 05d6932d01cc..55592bd30fe6 100644
--- a/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXValueMarkers.kt
+++ b/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXValueMarkers.kt
@@ -9,11 +9,14 @@ import com.intellij.platform.debugger.impl.rpc.XDebuggerValueMarkupApi
 import com.intellij.platform.debugger.impl.rpc.XValueMarkerDto
 import com.intellij.ui.JBColor
 import com.intellij.xdebugger.frame.XValue
+import com.intellij.xdebugger.impl.frame.XDebugManagerProxy
+import com.intellij.xdebugger.impl.frame.XDebugSessionProxy
 import com.intellij.xdebugger.impl.frame.XValueMarkers
 import com.intellij.xdebugger.impl.ui.tree.ValueMarkup
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.async
 import kotlinx.coroutines.future.asCompletableFuture
+import kotlinx.coroutines.launch
 import org.jetbrains.concurrency.Promise
 import org.jetbrains.concurrency.asPromise
 
@@ -25,8 +28,7 @@ internal class FrontendXValueMarkers<V : XValue, M>(private val project: Project
   }
 
   override fun canMarkValue(value: XValue): Boolean {
-    // TODO[IJPL-160146]: Implement canMarkValue
-    return true
+    return FrontendXValue.asFrontendXValueOrNull(value)?.canMarkValue ?: false
   }
 
   override fun markValue(value: XValue, markup: ValueMarkup): Promise<in Any> {
@@ -43,7 +45,8 @@ internal class FrontendXValueMarkers<V : XValue, M>(private val project: Project
   }
 
   override fun clear() {
-    // TODO[IJPL-160146]: Implement clear
+    val debugSessionProxy = XDebugManagerProxy.getInstance().getCurrentSessionProxy(project) ?: return
+    project.service<FrontendXValueMarkersService>().clear(debugSessionProxy)
   }
 }
 
@@ -65,4 +68,10 @@ private class FrontendXValueMarkersService(project: Project, private val cs: Cor
     }
     return valueUnmarked.asCompletableFuture().asPromise()
   }
+
+  fun clear(debugSessionProxy: XDebugSessionProxy) {
+    cs.launch {
+      XDebuggerValueMarkupApi.getInstance().clear(debugSessionProxy.id)
+    }
+  }
 }
\ No newline at end of file
diff --git a/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/evaluate/quick/FrontendXValue.kt b/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/evaluate/quick/FrontendXValue.kt
index 798b26804deb..5047ae1f3688 100644
--- a/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/evaluate/quick/FrontendXValue.kt
+++ b/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/evaluate/quick/FrontendXValue.kt
@@ -64,6 +64,10 @@ class FrontendXValue private constructor(
   @Volatile
   private var canNavigateToTypeSource = false
 
+  @Volatile
+  var canMarkValue: Boolean = false
+    private set
+
   private val xValueContainer = FrontendXValueContainer(project, cs, hasParentValue) {
     XValueApi.getInstance().computeChildren(xValueDto.id)
   }
@@ -110,6 +114,10 @@ class FrontendXValue private constructor(
     cs.launch {
       canNavigateToTypeSource = xValueDto.canNavigateToTypeSource.await()
     }
+
+    cs.launch {
+      canMarkValue = xValueDto.canMarkValue.await()
+    }
   }
 
   override fun canNavigateToSource(): Boolean {
diff --git a/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XDebuggerEvaluatorApi.kt b/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XDebuggerEvaluatorApi.kt
index 0c1baba56b14..a6fbdeeed9aa 100644
--- a/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XDebuggerEvaluatorApi.kt
+++ b/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XDebuggerEvaluatorApi.kt
@@ -106,6 +106,7 @@ data class XValueDto(
   val canNavigateToSource: Boolean,
   @Serializable(with = DeferredSerializer::class) val canNavigateToTypeSource: Deferred<Boolean>,
   @Serializable(with = DeferredSerializer::class) val canBeModified: Deferred<Boolean>,
+  @Serializable(with = DeferredSerializer::class) val canMarkValue: Deferred<Boolean>,
   val valueMark: RpcFlow<XValueMarkerDto?>,
   val presentation: RpcFlow<XValueSerializedPresentation>,
   val fullValueEvaluator: RpcFlow<XFullValueEvaluatorDto?>,
diff --git a/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XDebuggerValueMarkupApi.kt b/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XDebuggerValueMarkupApi.kt
index bf8c52b53455..b1bc2a955ef2 100644
--- a/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XDebuggerValueMarkupApi.kt
+++ b/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XDebuggerValueMarkupApi.kt
@@ -2,6 +2,7 @@
 package com.intellij.platform.debugger.impl.rpc
 
 import com.intellij.platform.rpc.RemoteApiProviderService
+import com.intellij.xdebugger.impl.rpc.XDebugSessionId
 import com.intellij.xdebugger.impl.rpc.XValueId
 import fleet.rpc.RemoteApi
 import fleet.rpc.Rpc
@@ -15,6 +16,8 @@ interface XDebuggerValueMarkupApi : RemoteApi<Unit> {
 
   suspend fun unmarkValue(xValueId: XValueId)
 
+  suspend fun clear(xDebugSessionId: XDebugSessionId)
+
   companion object {
     @JvmStatic
     suspend fun getInstance(): XDebuggerValueMarkupApi {
diff --git a/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/rpc/models/BackendXValueModel.kt b/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/rpc/models/BackendXValueModel.kt
index b77c7c0d3b48..a042704b4d91 100644
--- a/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/rpc/models/BackendXValueModel.kt
+++ b/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/rpc/models/BackendXValueModel.kt
@@ -132,6 +132,9 @@ suspend fun BackendXValueModel.toXValueDto(): XValueDto {
   val valueMarkupFlow: RpcFlow<XValueMarkerDto?> = xValueModel.marker.toRpc()
 
   val textProvider = getTextProviderFlow(xValue, xValueModel)
+  val canMarkValue = xValue.isReady.thenApply {
+    session.getValueMarkers()?.canMarkValue(xValue) ?: false
+  }
 
   return XValueDto(
     xValueModel.id,
@@ -139,6 +142,7 @@ suspend fun BackendXValueModel.toXValueDto(): XValueDto {
     canNavigateToSource = xValue.canNavigateToSource(),
     canNavigateToTypeSource = xValue.canNavigateToTypeSourceAsync().asDeferred(),
     canBeModified = xValue.modifierAsync.thenApply { modifier -> modifier != null }.asDeferred(),
+    canMarkValue = canMarkValue.asDeferred(),
     valueMarkupFlow,
     xValueModel.presentation.toRpc(),
     xValueModel.getEvaluatorDtoFlow().toRpc(),