diff --git a/plugins/cmd/hostgen/internal/generator.go b/plugins/cmd/hostgen/internal/generator.go
index 5810f6349..e10c30ef8 100644
--- a/plugins/cmd/hostgen/internal/generator.go
+++ b/plugins/cmd/hostgen/internal/generator.go
@@ -84,12 +84,6 @@ func GenerateHost(svc Service, pkgName string) ([]byte, error) {
 	return buf.Bytes(), nil
 }
 
-// GenerateService generates the host function wrapper code for a service.
-// Deprecated: Use GenerateHost instead.
-func GenerateService(svc Service, pkgName string) ([]byte, error) {
-	return GenerateHost(svc, pkgName)
-}
-
 // GenerateClientGo generates client wrapper code for plugins to call host functions.
 func GenerateClientGo(svc Service) ([]byte, error) {
 	tmplContent, err := templatesFS.ReadFile("templates/client_go.go.tmpl")
diff --git a/plugins/cmd/hostgen/internal/generator_test.go b/plugins/cmd/hostgen/internal/generator_test.go
index d3934fec9..8ec9c0902 100644
--- a/plugins/cmd/hostgen/internal/generator_test.go
+++ b/plugins/cmd/hostgen/internal/generator_test.go
@@ -9,7 +9,7 @@ import (
 )
 
 var _ = Describe("Generator", func() {
-	Describe("GenerateService", func() {
+	Describe("GenerateHost", func() {
 		It("should generate valid Go code for a simple service with strings", func() {
 			// String params/returns don't need JSON - they use direct memory read/write
 			svc := Service{
@@ -26,7 +26,7 @@ var _ = Describe("Generator", func() {
 				},
 			}
 
-			code, err := GenerateService(svc, "host")
+			code, err := GenerateHost(svc, "host")
 			Expect(err).NotTo(HaveOccurred())
 
 			// Verify the code is valid Go
@@ -73,7 +73,7 @@ var _ = Describe("Generator", func() {
 				},
 			}
 
-			code, err := GenerateService(svc, "host")
+			code, err := GenerateHost(svc, "host")
 			Expect(err).NotTo(HaveOccurred())
 
 			_, err = format.Source(code)
@@ -98,7 +98,7 @@ var _ = Describe("Generator", func() {
 				},
 			}
 
-			code, err := GenerateService(svc, "host")
+			code, err := GenerateHost(svc, "host")
 			Expect(err).NotTo(HaveOccurred())
 
 			_, err = format.Source(code)
@@ -132,7 +132,7 @@ var _ = Describe("Generator", func() {
 				},
 			}
 
-			code, err := GenerateService(svc, "host")
+			code, err := GenerateHost(svc, "host")
 			Expect(err).NotTo(HaveOccurred())
 
 			_, err = format.Source(code)
@@ -164,7 +164,7 @@ var _ = Describe("Generator", func() {
 				},
 			}
 
-			code, err := GenerateService(svc, "host")
+			code, err := GenerateHost(svc, "host")
 			Expect(err).NotTo(HaveOccurred())
 
 			_, err = format.Source(code)
@@ -200,7 +200,7 @@ var _ = Describe("Generator", func() {
 				},
 			}
 
-			code, err := GenerateService(svc, "host")
+			code, err := GenerateHost(svc, "host")
 			Expect(err).NotTo(HaveOccurred())
 
 			_, err = format.Source(code)
@@ -229,7 +229,7 @@ var _ = Describe("Generator", func() {
 				},
 			}
 
-			code, err := GenerateService(svc, "host")
+			code, err := GenerateHost(svc, "host")
 			Expect(err).NotTo(HaveOccurred())
 
 			codeStr := string(code)
@@ -254,7 +254,7 @@ var _ = Describe("Generator", func() {
 				},
 			}
 
-			code, err := GenerateService(svc, "host")
+			code, err := GenerateHost(svc, "host")
 			Expect(err).NotTo(HaveOccurred())
 
 			codeStr := string(code)
@@ -278,7 +278,7 @@ var _ = Describe("Generator", func() {
 				},
 			}
 
-			code, err := GenerateService(svc, "host")
+			code, err := GenerateHost(svc, "host")
 			Expect(err).NotTo(HaveOccurred())
 
 			codeStr := string(code)
@@ -336,7 +336,7 @@ type TestService interface {
 			Expect(services).To(HaveLen(1))
 
 			// Generate
-			code, err := GenerateService(services[0], "host")
+			code, err := GenerateHost(services[0], "host")
 			Expect(err).NotTo(HaveOccurred())
 
 			// Format (validates syntax)
diff --git a/plugins/cmd/hostgen/internal/templates/client_go.go.tmpl b/plugins/cmd/hostgen/internal/templates/client_go.go.tmpl
index 520113fd5..dcf7767f0 100644
--- a/plugins/cmd/hostgen/internal/templates/client_go.go.tmpl
+++ b/plugins/cmd/hostgen/internal/templates/client_go.go.tmpl
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the {{.Service.Name}} host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/cmd/hostgen/testdata/codec_client_expected.go b/plugins/cmd/hostgen/testdata/codec_client_expected.go
index b050070df..da2779d7c 100644
--- a/plugins/cmd/hostgen/testdata/codec_client_expected.go
+++ b/plugins/cmd/hostgen/testdata/codec_client_expected.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the Codec host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/cmd/hostgen/testdata/counter_client_expected.go b/plugins/cmd/hostgen/testdata/counter_client_expected.go
index 8aa15f560..d931cfe10 100644
--- a/plugins/cmd/hostgen/testdata/counter_client_expected.go
+++ b/plugins/cmd/hostgen/testdata/counter_client_expected.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the Counter host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/cmd/hostgen/testdata/echo_client_expected.go b/plugins/cmd/hostgen/testdata/echo_client_expected.go
index 876d00ac7..b7adb2d8d 100644
--- a/plugins/cmd/hostgen/testdata/echo_client_expected.go
+++ b/plugins/cmd/hostgen/testdata/echo_client_expected.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the Echo host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/cmd/hostgen/testdata/list_client_expected.go b/plugins/cmd/hostgen/testdata/list_client_expected.go
index 7f22abf59..d5e301244 100644
--- a/plugins/cmd/hostgen/testdata/list_client_expected.go
+++ b/plugins/cmd/hostgen/testdata/list_client_expected.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the List host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/cmd/hostgen/testdata/math_client_expected.go b/plugins/cmd/hostgen/testdata/math_client_expected.go
index f26e6f567..6710d1f10 100644
--- a/plugins/cmd/hostgen/testdata/math_client_expected.go
+++ b/plugins/cmd/hostgen/testdata/math_client_expected.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the Math host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/cmd/hostgen/testdata/meta_client_expected.go b/plugins/cmd/hostgen/testdata/meta_client_expected.go
index 9d97fa92e..fa14bf7ec 100644
--- a/plugins/cmd/hostgen/testdata/meta_client_expected.go
+++ b/plugins/cmd/hostgen/testdata/meta_client_expected.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the Meta host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/cmd/hostgen/testdata/ping_client_expected.go b/plugins/cmd/hostgen/testdata/ping_client_expected.go
index 1215827e8..e352dff73 100644
--- a/plugins/cmd/hostgen/testdata/ping_client_expected.go
+++ b/plugins/cmd/hostgen/testdata/ping_client_expected.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the Ping host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/cmd/hostgen/testdata/search_client_expected.go b/plugins/cmd/hostgen/testdata/search_client_expected.go
index 20a00b941..877665567 100644
--- a/plugins/cmd/hostgen/testdata/search_client_expected.go
+++ b/plugins/cmd/hostgen/testdata/search_client_expected.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the Search host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/cmd/hostgen/testdata/store_client_expected.go b/plugins/cmd/hostgen/testdata/store_client_expected.go
index 773de3f77..de873919a 100644
--- a/plugins/cmd/hostgen/testdata/store_client_expected.go
+++ b/plugins/cmd/hostgen/testdata/store_client_expected.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the Store host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/cmd/hostgen/testdata/users_client_expected.go b/plugins/cmd/hostgen/testdata/users_client_expected.go
index cfa688ff0..730f460ba 100644
--- a/plugins/cmd/hostgen/testdata/users_client_expected.go
+++ b/plugins/cmd/hostgen/testdata/users_client_expected.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the Users host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/host/go/nd_host_scheduler.go b/plugins/host/go/nd_host_scheduler.go
index 580874b32..4083160b9 100644
--- a/plugins/host/go/nd_host_scheduler.go
+++ b/plugins/host/go/nd_host_scheduler.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the Scheduler host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main
 
diff --git a/plugins/host/go/nd_host_subsonicapi.go b/plugins/host/go/nd_host_subsonicapi.go
index 30846a496..ea1de838d 100644
--- a/plugins/host/go/nd_host_subsonicapi.go
+++ b/plugins/host/go/nd_host_subsonicapi.go
@@ -2,6 +2,8 @@
 //
 // This file contains client wrappers for the SubsonicAPI host service.
 // It is intended for use in Navidrome plugins built with TinyGo.
+//
+//go:build wasip1
 
 package main