diff --git a/modules/core/src/main/scala/dev/guardrail/terms/Responses.scala b/modules/core/src/main/scala/dev/guardrail/terms/Responses.scala
index 61030fd414..c9e9059e5d 100644
--- a/modules/core/src/main/scala/dev/guardrail/terms/Responses.scala
+++ b/modules/core/src/main/scala/dev/guardrail/terms/Responses.scala
@@ -47,7 +47,7 @@ object Responses {
       instances <- responses
         .traverse { case (key, resp) =>
           for {
-            httpCode <- lookupStatusCode(key)
+            httpCode <- lookupStatusCode(Tracker.cloneHistory(resp, key))
             (statusCode, statusCodeName) = httpCode
             valueTypes <- (for {
               (rawContentType, content) <- resp.downField("content", _.getContent()).indexedDistribute.value
diff --git a/modules/core/src/main/scala/dev/guardrail/terms/framework/FrameworkTerms.scala b/modules/core/src/main/scala/dev/guardrail/terms/framework/FrameworkTerms.scala
index 04ea315279..d1efb87751 100644
--- a/modules/core/src/main/scala/dev/guardrail/terms/framework/FrameworkTerms.scala
+++ b/modules/core/src/main/scala/dev/guardrail/terms/framework/FrameworkTerms.scala
@@ -1,12 +1,13 @@
 package dev.guardrail.terms.framework
 
 import dev.guardrail.languages.LA
+import dev.guardrail.core.Tracker
 
 abstract class FrameworkTerms[L <: LA, F[_]] { self =>
   def getFrameworkImports(tracing: Boolean): F[List[L#Import]]
   def getFrameworkImplicits(): F[Option[(L#TermName, L#ObjectDefinition)]]
   def getFrameworkDefinitions(tracing: Boolean): F[List[(L#TermName, List[L#Definition])]]
-  def lookupStatusCode(key: String): F[(Int, L#TermName)]
+  def lookupStatusCode(key: Tracker[String]): F[(Int, L#TermName)]
   def fileType(format: Option[String]): F[L#Type]
   def objectType(format: Option[String]): F[L#Type]
 
@@ -14,7 +15,7 @@ abstract class FrameworkTerms[L <: LA, F[_]] { self =>
       getFrameworkImports: Boolean => F[List[L#Import]] = self.getFrameworkImports _,
       getFrameworkImplicits: () => F[Option[(L#TermName, L#ObjectDefinition)]] = self.getFrameworkImplicits _,
       getFrameworkDefinitions: Boolean => F[List[(L#TermName, List[L#Definition])]] = self.getFrameworkDefinitions _,
-      lookupStatusCode: String => F[(Int, L#TermName)] = self.lookupStatusCode _,
+      lookupStatusCode: Tracker[String] => F[(Int, L#TermName)] = self.lookupStatusCode _,
       fileType: Option[String] => F[L#Type] = self.fileType _,
       objectType: Option[String] => F[L#Type] = self.objectType _
   ) = {
@@ -29,7 +30,7 @@ abstract class FrameworkTerms[L <: LA, F[_]] { self =>
       def getFrameworkImports(tracing: Boolean)     = newGetFrameworkImports(tracing)
       def getFrameworkImplicits()                   = newGetFrameworkImplicits()
       def getFrameworkDefinitions(tracing: Boolean) = newGetFrameworkDefinitions(tracing)
-      def lookupStatusCode(key: String)             = newLookupStatusCode(key)
+      def lookupStatusCode(key: Tracker[String])    = newLookupStatusCode(key)
       def fileType(format: Option[String])          = newFileType(format)
       def objectType(format: Option[String])        = newObjectType(format)
     }
diff --git a/modules/java-dropwizard/src/main/scala/dev/guardrail/generators/java/dropwizard/DropwizardGenerator.scala b/modules/java-dropwizard/src/main/scala/dev/guardrail/generators/java/dropwizard/DropwizardGenerator.scala
index 563ce684c2..ae958d4360 100644
--- a/modules/java-dropwizard/src/main/scala/dev/guardrail/generators/java/dropwizard/DropwizardGenerator.scala
+++ b/modules/java-dropwizard/src/main/scala/dev/guardrail/generators/java/dropwizard/DropwizardGenerator.scala
@@ -7,7 +7,7 @@ import com.github.javaparser.ast.expr._
 import scala.reflect.runtime.universe.typeTag
 
 import dev.guardrail.Target
-import dev.guardrail.core.SupportDefinition
+import dev.guardrail.core.{ SupportDefinition, Tracker }
 import dev.guardrail.generators.java.JavaCollectionsGenerator
 import dev.guardrail.generators.java.JavaLanguage
 import dev.guardrail.generators.java.JavaVavrCollectionsGenerator
@@ -58,10 +58,10 @@ class DropwizardGenerator private extends FrameworkTerms[JavaLanguage, Target] {
       )
     )
 
-  def lookupStatusCode(key: String) = {
+  def lookupStatusCode(key: Tracker[String]) = {
     def parseStatusCode(code: Int, termName: String): Target[(Int, Name)] =
       safeParseName(termName).map(name => (code, name))
-    key match {
+    key.unwrapTracker match {
       case "100" => parseStatusCode(100, "Continue")
       case "101" => parseStatusCode(101, "SwitchingProtocols")
       case "102" => parseStatusCode(102, "Processing")
@@ -128,7 +128,7 @@ class DropwizardGenerator private extends FrameworkTerms[JavaLanguage, Target] {
       case "511" => parseStatusCode(511, "NetworkAuthenticationRequired")
       case "598" => parseStatusCode(598, "NetworkReadTimeout")
       case "599" => parseStatusCode(599, "NetworkConnectTimeout")
-      case _     => Target.raiseUserError(s"Unknown HTTP status code: ${key}")
+      case code  => Target.raiseUserError(s"Unknown HTTP status code: ${code} (${key.showHistory})")
     }
   }
 }
diff --git a/modules/java-spring-mvc/src/main/scala/dev/guardrail/generators/java/springMvc/SpringMvcGenerator.scala b/modules/java-spring-mvc/src/main/scala/dev/guardrail/generators/java/springMvc/SpringMvcGenerator.scala
index 2be9632d40..7e2e597c06 100644
--- a/modules/java-spring-mvc/src/main/scala/dev/guardrail/generators/java/springMvc/SpringMvcGenerator.scala
+++ b/modules/java-spring-mvc/src/main/scala/dev/guardrail/generators/java/springMvc/SpringMvcGenerator.scala
@@ -4,6 +4,7 @@ import com.github.javaparser.ast.expr.Name
 import scala.reflect.runtime.universe.typeTag
 
 import dev.guardrail.Target
+import dev.guardrail.core.Tracker
 import dev.guardrail.generators.java.JavaCollectionsGenerator
 import dev.guardrail.generators.java.JavaLanguage
 import dev.guardrail.generators.java.JavaVavrCollectionsGenerator
@@ -40,11 +41,11 @@ class SpringMvcGenerator private (implicit Cl: CollectionsLibTerms[JavaLanguage,
   def getFrameworkDefinitions(tracing: Boolean) =
     Target.pure(List.empty)
 
-  def lookupStatusCode(key: String) = {
+  def lookupStatusCode(key: Tracker[String]) = {
     def parseStatusCode(code: Int, termName: String): Target[(Int, Name)] =
       safeParseName(termName).map(name => (code, name))
 
-    key match {
+    key.unwrapTracker match {
       case "100" => parseStatusCode(100, "Continue")
       case "101" => parseStatusCode(101, "SwitchingProtocols")
       case "102" => parseStatusCode(102, "Processing")
@@ -111,7 +112,7 @@ class SpringMvcGenerator private (implicit Cl: CollectionsLibTerms[JavaLanguage,
       case "511" => parseStatusCode(511, "NetworkAuthenticationRequired")
       case "598" => parseStatusCode(598, "NetworkReadTimeout")
       case "599" => parseStatusCode(599, "NetworkConnectTimeout")
-      case _     => Target.raiseUserError(s"Unknown HTTP status code: ${key}")
+      case code  => Target.raiseUserError(s"Unknown HTTP status code: ${code} (${key.showHistory})")
     }
   }
 }
diff --git a/modules/scala-akka-http/src/main/scala/dev/guardrail/generators/scala/akkaHttp/AkkaHttpGenerator.scala b/modules/scala-akka-http/src/main/scala/dev/guardrail/generators/scala/akkaHttp/AkkaHttpGenerator.scala
index 5005dc2e59..98d9b2adf4 100644
--- a/modules/scala-akka-http/src/main/scala/dev/guardrail/generators/scala/akkaHttp/AkkaHttpGenerator.scala
+++ b/modules/scala-akka-http/src/main/scala/dev/guardrail/generators/scala/akkaHttp/AkkaHttpGenerator.scala
@@ -4,6 +4,7 @@ import scala.meta._
 import scala.reflect.runtime.universe.typeTag
 
 import dev.guardrail.{ RuntimeFailure, Target }
+import dev.guardrail.core.Tracker
 import dev.guardrail.generators.scala.{ CirceModelGenerator, CirceRefinedModelGenerator, JacksonModelGenerator, ModelGeneratorType, ScalaLanguage }
 import dev.guardrail.generators.spi.{ FrameworkGeneratorLoader, ModuleLoadResult, ProtocolGeneratorLoader }
 import dev.guardrail.terms.framework._
@@ -383,8 +384,8 @@ class AkkaHttpGenerator private (akkaHttpVersion: AkkaHttpVersion, modelGenerato
   override def getFrameworkDefinitions(tracing: Boolean) =
     Target.pure(List.empty)
 
-  override def lookupStatusCode(key: String) =
-    key match {
+  override def lookupStatusCode(key: Tracker[String]) =
+    key.unwrapTracker match {
       case "100" => Target.pure((100, q"Continue"))
       case "101" => Target.pure((101, q"SwitchingProtocols"))
       case "102" => Target.pure((102, q"Processing"))
@@ -464,6 +465,6 @@ class AkkaHttpGenerator private (akkaHttpVersion: AkkaHttpVersion, modelGenerato
       case "511" => Target.pure((511, q"NetworkAuthenticationRequired"))
       case "598" => Target.pure((598, q"NetworkReadTimeout"))
       case "599" => Target.pure((599, q"NetworkConnectTimeout"))
-      case _     => Target.raiseUserError(s"Unknown HTTP status code: ${key}")
+      case code  => Target.raiseUserError(s"Unknown HTTP status code: ${code} (${key.showHistory})")
     }
 }
diff --git a/modules/scala-dropwizard/src/main/scala/dev/guardrail/generators/scala/dropwizard/DropwizardGenerator.scala b/modules/scala-dropwizard/src/main/scala/dev/guardrail/generators/scala/dropwizard/DropwizardGenerator.scala
index ea89a08b7b..eb21269910 100644
--- a/modules/scala-dropwizard/src/main/scala/dev/guardrail/generators/scala/dropwizard/DropwizardGenerator.scala
+++ b/modules/scala-dropwizard/src/main/scala/dev/guardrail/generators/scala/dropwizard/DropwizardGenerator.scala
@@ -1,6 +1,7 @@
 package dev.guardrail.generators.scala.dropwizard
 
 import dev.guardrail.{ Target, UserError }
+import dev.guardrail.core.Tracker
 import dev.guardrail.generators.scala.ScalaLanguage
 import dev.guardrail.terms.framework.FrameworkTerms
 import dev.guardrail.generators.spi.{ FrameworkGeneratorLoader, ModuleLoadResult }
@@ -30,8 +31,8 @@ class DropwizardGenerator private extends FrameworkTerms[ScalaLanguage, Target]
 
   // jaxrs has a Status enum, but it is missing a _lot_ of codes,
   // so we'll make our own here and use ints in the generated code
-  override def lookupStatusCode(key: String): Target[(Int, Term.Name)] =
-    key match {
+  override def lookupStatusCode(key: Tracker[String]): Target[(Int, Term.Name)] =
+    key.unwrapTracker match {
       case "100" => Target.pure((100, q"Continue"))
       case "101" => Target.pure((101, q"SwitchingProtocols"))
       case "102" => Target.pure((102, q"Processing"))
@@ -108,6 +109,6 @@ class DropwizardGenerator private extends FrameworkTerms[ScalaLanguage, Target]
           .filter(code => code >= 100 && code <= 599)
           .map((_, Term.Name(s"StatusCode$custom")))
           .toOption
-        Target.fromOption(customCode, UserError(s"'$custom' is not a valid HTTP status code"))
+        Target.fromOption(customCode, UserError(s"'$custom' is not a valid HTTP status code (${key.showHistory})"))
     }
 }
diff --git a/modules/scala-http4s/src/main/scala/dev/guardrail/generators/scala/http4s/Http4sGenerator.scala b/modules/scala-http4s/src/main/scala/dev/guardrail/generators/scala/http4s/Http4sGenerator.scala
index 4470cf6c5e..80b2cbd617 100644
--- a/modules/scala-http4s/src/main/scala/dev/guardrail/generators/scala/http4s/Http4sGenerator.scala
+++ b/modules/scala-http4s/src/main/scala/dev/guardrail/generators/scala/http4s/Http4sGenerator.scala
@@ -4,6 +4,7 @@ import scala.meta._
 import scala.reflect.runtime.universe.typeTag
 
 import dev.guardrail.Target
+import dev.guardrail.core.Tracker
 import dev.guardrail.generators.scala._
 import dev.guardrail.generators.spi.{ FrameworkGeneratorLoader, ModuleLoadResult }
 import dev.guardrail.terms.framework._
@@ -89,8 +90,8 @@ class Http4sGenerator private extends FrameworkTerms[ScalaLanguage, Target] {
   def getFrameworkDefinitions(tracing: Boolean) =
     Target.pure(List.empty)
 
-  def lookupStatusCode(key: String): Target[(Int, scala.meta.Term.Name)] =
-    key match {
+  def lookupStatusCode(key: Tracker[String]): Target[(Int, scala.meta.Term.Name)] =
+    key.unwrapTracker match {
       case "100" => Target.pure((100, q"Continue"))
       case "101" => Target.pure((101, q"SwitchingProtocols"))
       case "102" => Target.pure((102, q"Processing"))
@@ -149,6 +150,6 @@ class Http4sGenerator private extends FrameworkTerms[ScalaLanguage, Target] {
       case "508" => Target.pure((508, q"LoopDetected"))
       case "510" => Target.pure((510, q"NotExtended"))
       case "511" => Target.pure((511, q"NetworkAuthenticationRequired"))
-      case _     => Target.raiseUserError(s"Unknown HTTP status code: ${key}")
+      case code  => Target.raiseUserError(s"Unknown HTTP status code: ${code} (${key.showHistory})")
     }
 }
diff --git a/modules/scala-support/src/test/scala/tests/circe/ArrayValidationTest.scala b/modules/scala-support/src/test/scala/tests/circe/ArrayValidationTest.scala
index 915a6f8fa5..5670b4fd88 100644
--- a/modules/scala-support/src/test/scala/tests/circe/ArrayValidationTest.scala
+++ b/modules/scala-support/src/test/scala/tests/circe/ArrayValidationTest.scala
@@ -56,9 +56,9 @@ class ArrayValidationTest extends AnyFreeSpec with Matchers with SwaggerSpecRunn
       def getFrameworkImplicits(): dev.guardrail.Target[Option[
         (dev.guardrail.generators.scala.ScalaLanguage#TermName, dev.guardrail.generators.scala.ScalaLanguage#ObjectDefinition)
       ]] = ???
-      def getFrameworkImports(tracing: Boolean): dev.guardrail.Target[List[dev.guardrail.generators.scala.ScalaLanguage#Import]] = ???
-      def lookupStatusCode(key: String): dev.guardrail.Target[(Int, dev.guardrail.generators.scala.ScalaLanguage#TermName)]      = ???
-      def objectType(format: Option[String]): dev.guardrail.Target[dev.guardrail.generators.scala.ScalaLanguage#Type]            = Target.pure(t"io.circe.Json")
+      def getFrameworkImports(tracing: Boolean): dev.guardrail.Target[List[dev.guardrail.generators.scala.ScalaLanguage#Import]]     = ???
+      def lookupStatusCode(key: Tracker[String]): dev.guardrail.Target[(Int, dev.guardrail.generators.scala.ScalaLanguage#TermName)] = ???
+      def objectType(format: Option[String]): dev.guardrail.Target[dev.guardrail.generators.scala.ScalaLanguage#Type] = Target.pure(t"io.circe.Json")
     }
     implicit val circeProtocolGenerator: ProtocolTerms[ScalaLanguage, Target] = CirceRefinedProtocolGenerator(CirceRefinedModelGenerator.V012)
     implicit val scalaGenerator                                               = ScalaGenerator()
diff --git a/modules/scala-support/src/test/scala/tests/circe/BigObjectSpec.scala b/modules/scala-support/src/test/scala/tests/circe/BigObjectSpec.scala
index 3e027bb757..e15793244f 100644
--- a/modules/scala-support/src/test/scala/tests/circe/BigObjectSpec.scala
+++ b/modules/scala-support/src/test/scala/tests/circe/BigObjectSpec.scala
@@ -139,9 +139,9 @@ class BigObjectSpec extends AnyFunSuite with Matchers with SwaggerSpecRunner wit
       def getFrameworkImplicits(): dev.guardrail.Target[Option[
         (dev.guardrail.generators.scala.ScalaLanguage#TermName, dev.guardrail.generators.scala.ScalaLanguage#ObjectDefinition)
       ]] = ???
-      def getFrameworkImports(tracing: Boolean): dev.guardrail.Target[List[dev.guardrail.generators.scala.ScalaLanguage#Import]] = ???
-      def lookupStatusCode(key: String): dev.guardrail.Target[(Int, dev.guardrail.generators.scala.ScalaLanguage#TermName)]      = ???
-      def objectType(format: Option[String]): dev.guardrail.Target[dev.guardrail.generators.scala.ScalaLanguage#Type]            = Target.pure(t"io.circe.Json")
+      def getFrameworkImports(tracing: Boolean): dev.guardrail.Target[List[dev.guardrail.generators.scala.ScalaLanguage#Import]]     = ???
+      def lookupStatusCode(key: Tracker[String]): dev.guardrail.Target[(Int, dev.guardrail.generators.scala.ScalaLanguage#TermName)] = ???
+      def objectType(format: Option[String]): dev.guardrail.Target[dev.guardrail.generators.scala.ScalaLanguage#Type] = Target.pure(t"io.circe.Json")
     }
     implicit val circeProtocolGenerator = CirceProtocolGenerator(CirceModelGenerator.V012)
     implicit val scalaGenerator         = ScalaGenerator()
diff --git a/modules/scala-support/src/test/scala/tests/circe/ValidationTest.scala b/modules/scala-support/src/test/scala/tests/circe/ValidationTest.scala
index c734988a92..aa1fc34807 100644
--- a/modules/scala-support/src/test/scala/tests/circe/ValidationTest.scala
+++ b/modules/scala-support/src/test/scala/tests/circe/ValidationTest.scala
@@ -59,8 +59,8 @@ class ValidationTest extends AnyFreeSpec with Matchers with SwaggerSpecRunner wi
         def getFrameworkImplicits(): dev.guardrail.Target[Option[
           (dev.guardrail.generators.scala.ScalaLanguage#TermName, dev.guardrail.generators.scala.ScalaLanguage#ObjectDefinition)
         ]] = ???
-        def getFrameworkImports(tracing: Boolean): dev.guardrail.Target[List[dev.guardrail.generators.scala.ScalaLanguage#Import]] = ???
-        def lookupStatusCode(key: String): dev.guardrail.Target[(Int, dev.guardrail.generators.scala.ScalaLanguage#TermName)]      = ???
+        def getFrameworkImports(tracing: Boolean): dev.guardrail.Target[List[dev.guardrail.generators.scala.ScalaLanguage#Import]]     = ???
+        def lookupStatusCode(key: Tracker[String]): dev.guardrail.Target[(Int, dev.guardrail.generators.scala.ScalaLanguage#TermName)] = ???
         def objectType(format: Option[String]): dev.guardrail.Target[dev.guardrail.generators.scala.ScalaLanguage#Type] = Target.pure(t"io.circe.Json")
       }
       implicit val circeProtocolGenerator: ProtocolTerms[ScalaLanguage, Target] = CirceRefinedProtocolGenerator(CirceRefinedModelGenerator.V012)