diff --git a/src/main/grammars/AwParser.bnf b/src/main/grammars/AwParser.bnf
index 99d5f79c1..597e8513c 100644
--- a/src/main/grammars/AwParser.bnf
+++ b/src/main/grammars/AwParser.bnf
@@ -58,12 +58,12 @@ class_entry ::= access class_literal class_name {
     implements="com.demonwav.mcdev.platform.mcp.aw.psi.mixins.AwClassEntryMixin"
 }
 
-method_entry ::= access method_literal class_name member_name method_desc{
+method_entry ::= access method_literal class_name member_name method_desc {
     mixin="com.demonwav.mcdev.platform.mcp.aw.psi.mixins.impl.AwMethodEntryImplMixin"
     implements="com.demonwav.mcdev.platform.mcp.aw.psi.mixins.AwMethodEntryMixin"
 }
 
-field_entry ::= access field_literal class_name member_name field_desc{
+field_entry ::= access field_literal class_name member_name field_desc {
     mixin="com.demonwav.mcdev.platform.mcp.aw.psi.mixins.impl.AwFieldEntryImplMixin"
     implements="com.demonwav.mcdev.platform.mcp.aw.psi.mixins.AwFieldEntryMixin"
 }
diff --git a/src/main/kotlin/platform/mcp/aw/AwAnnotator.kt b/src/main/kotlin/platform/mcp/aw/AwAnnotator.kt
index 76a6c2683..0f011873a 100644
--- a/src/main/kotlin/platform/mcp/aw/AwAnnotator.kt
+++ b/src/main/kotlin/platform/mcp/aw/AwAnnotator.kt
@@ -20,19 +20,26 @@
 
 package com.demonwav.mcdev.platform.mcp.aw
 
+import com.demonwav.mcdev.asset.MCDevBundle
+import com.demonwav.mcdev.platform.mcp.aw.config.IgnoredClassNamesConfig
 import com.demonwav.mcdev.platform.mcp.aw.gen.psi.AwAccess
 import com.demonwav.mcdev.platform.mcp.aw.gen.psi.AwClassLiteral
+import com.demonwav.mcdev.platform.mcp.aw.gen.psi.AwClassName
 import com.demonwav.mcdev.platform.mcp.aw.gen.psi.AwFieldLiteral
 import com.demonwav.mcdev.platform.mcp.aw.gen.psi.AwHeader
 import com.demonwav.mcdev.platform.mcp.aw.gen.psi.AwMethodLiteral
+import com.demonwav.mcdev.platform.mcp.aw.quickfix.IgnoreClassWarningFix
 import com.demonwav.mcdev.util.childOfType
 import com.google.common.collect.HashMultimap
 import com.google.common.collect.Multimaps
 import com.intellij.lang.annotation.AnnotationHolder
 import com.intellij.lang.annotation.Annotator
 import com.intellij.lang.annotation.HighlightSeverity
+import com.intellij.openapi.project.DumbService
+import com.intellij.psi.JavaPsiFacade
 import com.intellij.psi.PsiElement
 import com.intellij.psi.PsiWhiteSpace
+import com.intellij.psi.search.GlobalSearchScope
 import com.intellij.psi.util.PsiTreeUtil
 
 class AwAnnotator : Annotator {
@@ -56,6 +63,28 @@ class AwAnnotator : Annotator {
             if (!compatibleByTargetMap.get(target).contains(access)) {
                 holder.newAnnotation(HighlightSeverity.ERROR, "'$target' cannot be used with '$access'").create()
             }
+        } else if (element is AwClassName) {
+            val project = element.project
+
+            if (DumbService.isDumb(project)) {
+                return
+            }
+
+            val javaPsiFacade = JavaPsiFacade.getInstance(project)
+            val scope = GlobalSearchScope.allScope(project)
+
+            val classFqn = element.text.replace('/', '.')
+            val psiClass = javaPsiFacade.findClass(classFqn, scope)
+
+            val config = IgnoredClassNamesConfig.getInstance(project)
+            val ignored = config.ignoredClassNames
+
+            if (classFqn !in ignored && psiClass == null) {
+                holder.newAnnotation(HighlightSeverity.WARNING, MCDevBundle("inspection.aw.class_not_found", classFqn))
+                    .range(element.textRange)
+                    .withFix(IgnoreClassWarningFix(classFqn, element))
+                    .create()
+            }
         }
     }
 
diff --git a/src/main/kotlin/platform/mcp/aw/config/IgnoredClassNamesConfig.kt b/src/main/kotlin/platform/mcp/aw/config/IgnoredClassNamesConfig.kt
new file mode 100644
index 000000000..d147054c0
--- /dev/null
+++ b/src/main/kotlin/platform/mcp/aw/config/IgnoredClassNamesConfig.kt
@@ -0,0 +1,32 @@
+package com.demonwav.mcdev.platform.mcp.aw.config
+
+import com.intellij.openapi.components.PersistentStateComponent
+import com.intellij.openapi.components.Service
+import com.intellij.openapi.components.State
+import com.intellij.openapi.components.Storage
+import com.intellij.openapi.project.Project
+
+@Service(Service.Level.PROJECT)
+@State(name = "IgnoredClassNamesConfig", storages = [Storage("ignoredClassNames.xml")])
+class IgnoredClassNamesConfig : PersistentStateComponent<IgnoredClassNamesConfig.State> {
+
+    data class State(var ignoredClassNames: MutableSet<String> = mutableSetOf())
+
+    private var state = State()
+
+    companion object {
+        fun getInstance(project: Project): IgnoredClassNamesConfig =
+            project.getService(IgnoredClassNamesConfig::class.java)
+    }
+
+    var ignoredClassNames: MutableSet<String>
+        get() = state.ignoredClassNames
+        set(value) {
+            state.ignoredClassNames = value
+        }
+
+    override fun getState(): State = state
+    override fun loadState(state: State) {
+        this.state = state
+    }
+}
diff --git a/src/main/kotlin/platform/mcp/aw/quickfix/IgnoreClassWarningFix.kt b/src/main/kotlin/platform/mcp/aw/quickfix/IgnoreClassWarningFix.kt
new file mode 100644
index 000000000..4a617ba04
--- /dev/null
+++ b/src/main/kotlin/platform/mcp/aw/quickfix/IgnoreClassWarningFix.kt
@@ -0,0 +1,38 @@
+package com.demonwav.mcdev.platform.mcp.aw.quickfix
+
+import com.demonwav.mcdev.platform.mcp.aw.config.IgnoredClassNamesConfig
+import com.demonwav.mcdev.platform.mcp.aw.gen.psi.AwClassName
+import com.intellij.codeInsight.daemon.DaemonCodeAnalyzer
+import com.intellij.codeInsight.intention.IntentionAction
+import com.intellij.codeInspection.LocalQuickFix
+import com.intellij.codeInspection.LocalQuickFixOnPsiElement
+import com.intellij.codeInspection.ProblemDescriptor
+import com.intellij.codeInspection.util.IntentionFamilyName
+import com.intellij.codeInspection.util.IntentionName
+import com.intellij.openapi.editor.Editor
+import com.intellij.openapi.project.Project
+import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiFile
+import org.jetbrains.annotations.Nls
+
+class IgnoreClassWarningFix(private val className: String, private val element: PsiElement) : IntentionAction {
+
+    override fun getText() = "Ignore warnings for '$className'"
+
+    override fun getFamilyName() = "Ignore warnings"
+
+    override fun isAvailable(project: Project, editor: Editor?, file: PsiFile?): Boolean = element.isValid
+
+    override fun invoke(project: Project, editor: Editor?, file: PsiFile?) {
+        val config = IgnoredClassNamesConfig.getInstance(project)
+        val ignored = config.ignoredClassNames.toMutableSet()
+        ignored.add(className)
+        config.ignoredClassNames = ignored
+
+        file?.let {
+            DaemonCodeAnalyzer.getInstance(project).restart(it)
+        }
+    }
+
+    override fun startInWriteAction(): Boolean = false
+}
\ No newline at end of file
diff --git a/src/main/resources/messages/MinecraftDevelopment.properties b/src/main/resources/messages/MinecraftDevelopment.properties
index 15925cea1..b4b2cb04c 100644
--- a/src/main/resources/messages/MinecraftDevelopment.properties
+++ b/src/main/resources/messages/MinecraftDevelopment.properties
@@ -199,6 +199,8 @@ inspection.entity_data_param.description=Reports when the class passed to an ent
 inspection.entity_data_param.message=Entity class does not match this entity class
 inspection.entity_data_param.fix=Replace other entity class with this entity class
 
+inspection.aw.class_not_found=Class "{0}" not found in the project or libraries. Please make sure the class name is correct and the relevant module dependencies are set.
+
 nbt.compression.gzip=GZipped
 nbt.compression.uncompressed=Uncompressed
 nbt.compression.file_type.label=Compression: