diff --git a/codegen-sbt/src/main/scala/caliban/codegen/CalibanSettings.scala b/codegen-sbt/src/main/scala/caliban/codegen/CalibanSettings.scala
index d732adb6c..e37f4f152 100644
--- a/codegen-sbt/src/main/scala/caliban/codegen/CalibanSettings.scala
+++ b/codegen-sbt/src/main/scala/caliban/codegen/CalibanSettings.scala
@@ -6,35 +6,36 @@ import caliban.tools.Codegen.GenType
 import java.io.File
 import java.net.URL
 
-sealed trait CalibanSettings
+sealed trait CalibanSettings {
+  type Self <: CalibanSettings
+  def withSettings(f: CalibanCommonSettings => CalibanCommonSettings): Self
 
-final case class CalibanFileSettings(file: File, settings: CalibanCommonSettings) extends CalibanSettings {
+  def clientName(value: String): Self                       = withSettings(_.clientName(value))
+  def scalafmtPath(path: String): Self                      = withSettings(_.scalafmtPath(path))
+  def packageName(name: String): Self                       = withSettings(_.packageName(name))
+  def genView(value: Boolean): Self                         = withSettings(_.genView(value))
+  def scalarMapping(mapping: (String, String)*): Self       =
+    withSettings(_.scalarMappings(mapping: _*))
+  def imports(values: String*): Self                        = withSettings(_.imports(values: _*))
+  def splitFiles(value: Boolean): Self                      = withSettings(_.splitFiles(value))
+  def enableFmt(value: Boolean): Self                       = withSettings(_.enableFmt(value))
+  def extensibleEnums(value: Boolean): Self                 = withSettings(_.extensibleEnums(value))
+  def genType(genType: GenType): Self                       = withSettings(_.genType(genType))
+  def effect(effect: String): Self                          = withSettings(_.effect(effect))
+  def abstractEffectType(abstractEffectType: Boolean): Self =
+    withSettings(_.abstractEffectType(abstractEffectType))
+}
 
-  def clientName(value: String): CalibanFileSettings                 = this.copy(settings = this.settings.clientName(value))
-  def scalafmtPath(path: String): CalibanFileSettings                = this.copy(settings = this.settings.scalafmtPath(path))
-  def packageName(name: String): CalibanFileSettings                 = this.copy(settings = this.settings.packageName(name))
-  def genView(value: Boolean): CalibanFileSettings                   = this.copy(settings = this.settings.genView(value))
-  def scalarMapping(mapping: (String, String)*): CalibanFileSettings =
-    this.copy(settings = this.settings.scalarMappings(mapping: _*))
-  def imports(values: String*): CalibanFileSettings                  = this.copy(settings = this.settings.imports(values: _*))
-  def splitFiles(value: Boolean): CalibanFileSettings                = this.copy(settings = this.settings.splitFiles(value))
-  def enableFmt(value: Boolean): CalibanFileSettings                 = this.copy(settings = this.settings.enableFmt(value))
-  def extensibleEnums(value: Boolean): CalibanFileSettings           = this.copy(settings = this.settings.extensibleEnums(value))
-  def genType(genType: GenType): CalibanFileSettings                 = this.copy(settings = this.settings.genType(genType))
+final case class CalibanFileSettings(file: File, settings: CalibanCommonSettings) extends CalibanSettings {
+  type Self = CalibanFileSettings
+  def withSettings(f: CalibanCommonSettings => CalibanCommonSettings): Self =
+    this.copy(settings = f(settings))
 }
 
 final case class CalibanUrlSettings(url: URL, settings: CalibanCommonSettings) extends CalibanSettings {
+  type Self = CalibanUrlSettings
+  def withSettings(f: CalibanCommonSettings => CalibanCommonSettings): Self =
+    this.copy(settings = f(settings))
 
-  def clientName(value: String): CalibanUrlSettings                 = this.copy(settings = this.settings.clientName(value))
-  def scalafmtPath(path: String): CalibanUrlSettings                = this.copy(settings = this.settings.scalafmtPath(path))
-  def headers(values: (String, String)*): CalibanUrlSettings        = this.copy(settings = this.settings.headers(values: _*))
-  def packageName(name: String): CalibanUrlSettings                 = this.copy(settings = this.settings.packageName(name))
-  def genView(value: Boolean): CalibanUrlSettings                   = this.copy(settings = this.settings.genView(value))
-  def scalarMapping(mapping: (String, String)*): CalibanUrlSettings =
-    this.copy(settings = this.settings.scalarMappings(mapping: _*))
-  def imports(values: String*): CalibanUrlSettings                  = this.copy(settings = this.settings.imports(values: _*))
-  def splitFiles(value: Boolean): CalibanUrlSettings                = this.copy(settings = this.settings.splitFiles(value))
-  def enableFmt(value: Boolean): CalibanUrlSettings                 = this.copy(settings = this.settings.enableFmt(value))
-  def extensibleEnums(value: Boolean): CalibanUrlSettings           = this.copy(settings = this.settings.extensibleEnums(value))
-  def genType(genType: GenType): CalibanUrlSettings                 = this.copy(settings = this.settings.genType(genType))
+  def headers(values: (String, String)*): CalibanUrlSettings = this.copy(settings = this.settings.headers(values: _*))
 }
diff --git a/tools/src/main/scala/caliban/tools/CalibanCommonSettings.scala b/tools/src/main/scala/caliban/tools/CalibanCommonSettings.scala
index 94d949368..1ee105a0e 100644
--- a/tools/src/main/scala/caliban/tools/CalibanCommonSettings.scala
+++ b/tools/src/main/scala/caliban/tools/CalibanCommonSettings.scala
@@ -13,7 +13,9 @@ final case class CalibanCommonSettings(
   splitFiles: Option[Boolean],
   enableFmt: Option[Boolean],
   extensibleEnums: Option[Boolean],
-  genType: GenType
+  genType: GenType,
+  effect: Option[String],
+  abstractEffectType: Option[Boolean]
 ) {
 
   private[caliban] def toOptions(schemaPath: String, toPath: String): Options =
@@ -25,10 +27,10 @@ final case class CalibanCommonSettings(
       packageName = packageName,
       clientName = clientName,
       genView = genView,
-      effect = Option.empty,
+      effect = effect,
       scalarMappings = Option(scalarMappings.toMap).filter(_.nonEmpty),
       imports = Option(imports.toList).filter(_.nonEmpty),
-      abstractEffectType = Option.empty,
+      abstractEffectType = abstractEffectType,
       splitFiles = splitFiles,
       enableFmt = enableFmt,
       extensibleEnums = extensibleEnums
@@ -46,21 +48,26 @@ final case class CalibanCommonSettings(
       splitFiles = r.splitFiles.orElse(this.splitFiles),
       enableFmt = r.enableFmt.orElse(this.enableFmt),
       extensibleEnums = r.extensibleEnums.orElse(this.extensibleEnums),
-      genType = r.genType
+      genType = r.genType,
+      effect = r.effect.orElse(this.effect),
+      abstractEffectType = r.abstractEffectType.orElse(this.abstractEffectType)
     )
 
-  def clientName(value: String): CalibanCommonSettings                  = this.copy(clientName = Some(value))
-  def scalafmtPath(value: String): CalibanCommonSettings                = this.copy(scalafmtPath = Some(value))
-  def headers(headers: (String, String)*): CalibanCommonSettings        = this.copy(headers = this.headers ++ headers)
-  def packageName(name: String): CalibanCommonSettings                  = this.copy(packageName = Some(name))
-  def genView(value: Boolean): CalibanCommonSettings                    = this.copy(genView = Some(value))
-  def scalarMappings(mapping: (String, String)*): CalibanCommonSettings =
+  def clientName(value: String): CalibanCommonSettings                       = this.copy(clientName = Some(value))
+  def scalafmtPath(value: String): CalibanCommonSettings                     = this.copy(scalafmtPath = Some(value))
+  def headers(headers: (String, String)*): CalibanCommonSettings             = this.copy(headers = this.headers ++ headers)
+  def packageName(name: String): CalibanCommonSettings                       = this.copy(packageName = Some(name))
+  def genView(value: Boolean): CalibanCommonSettings                         = this.copy(genView = Some(value))
+  def scalarMappings(mapping: (String, String)*): CalibanCommonSettings      =
     this.copy(scalarMappings = this.scalarMappings ++ mapping)
-  def imports(imports: String*): CalibanCommonSettings                  = this.copy(imports = this.imports ++ imports)
-  def splitFiles(value: Boolean): CalibanCommonSettings                 = this.copy(splitFiles = Some(value))
-  def enableFmt(value: Boolean): CalibanCommonSettings                  = this.copy(enableFmt = Some(value))
-  def extensibleEnums(value: Boolean): CalibanCommonSettings            = this.copy(extensibleEnums = Some(value))
-  def genType(genType: GenType): CalibanCommonSettings                  = this.copy(genType = genType)
+  def imports(imports: String*): CalibanCommonSettings                       = this.copy(imports = this.imports ++ imports)
+  def splitFiles(value: Boolean): CalibanCommonSettings                      = this.copy(splitFiles = Some(value))
+  def enableFmt(value: Boolean): CalibanCommonSettings                       = this.copy(enableFmt = Some(value))
+  def extensibleEnums(value: Boolean): CalibanCommonSettings                 = this.copy(extensibleEnums = Some(value))
+  def genType(genType: GenType): CalibanCommonSettings                       = this.copy(genType = genType)
+  def effect(effect: String): CalibanCommonSettings                          = this.copy(effect = Some(effect))
+  def abstractEffectType(abstractEffectType: Boolean): CalibanCommonSettings =
+    this.copy(abstractEffectType = Some(abstractEffectType))
 }
 
 object CalibanCommonSettings {
@@ -76,6 +83,8 @@ object CalibanCommonSettings {
       splitFiles = None,
       enableFmt = None,
       extensibleEnums = None,
-      GenType.Client
+      genType = GenType.Client,
+      effect = None,
+      abstractEffectType = None
     )
 }
diff --git a/tools/src/main/scala/caliban/tools/compiletime/Config.scala b/tools/src/main/scala/caliban/tools/compiletime/Config.scala
index ee7c01e62..7437848ea 100644
--- a/tools/src/main/scala/caliban/tools/compiletime/Config.scala
+++ b/tools/src/main/scala/caliban/tools/compiletime/Config.scala
@@ -27,7 +27,9 @@ trait Config {
         splitFiles = Some(splitFiles),
         enableFmt = Some(enableFmt),
         extensibleEnums = Some(extensibleEnums),
-        GenType.Client
+        GenType.Client,
+        effect = None,
+        abstractEffectType = None
       )
 
     private[caliban] def asScalaCode: String = {
diff --git a/tools/src/test/scala/caliban/tools/compiletime/ConfigSpec.scala b/tools/src/test/scala/caliban/tools/compiletime/ConfigSpec.scala
index 6a19e437b..5ffe636bf 100644
--- a/tools/src/test/scala/caliban/tools/compiletime/ConfigSpec.scala
+++ b/tools/src/test/scala/caliban/tools/compiletime/ConfigSpec.scala
@@ -37,7 +37,9 @@ object ConfigSpec extends DefaultRunnableSpec {
               imports = List("zio.test._", "caliban.tools.compiletime._"),
               splitFiles = Some(true),
               enableFmt = Some(false),
-              extensibleEnums = Some(true)
+              extensibleEnums = Some(true),
+              effect = None,
+              abstractEffectType = None
             )
         )
       )