diff --git a/build.rs b/build.rs
index 005eb7a515..94a9e44885 100644
--- a/build.rs
+++ b/build.rs
@@ -18,11 +18,17 @@
 // we need for XDS GRPC communication.
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let proto_files = vec![
+        "proto/data-plane-api/envoy/config/accesslog/v3/accesslog.proto",
         "proto/data-plane-api/envoy/config/cluster/v3/cluster.proto",
+        "proto/data-plane-api/envoy/config/listener/v3/listener.proto",
+        "proto/data-plane-api/envoy/config/route/v3/route.proto",
         "proto/data-plane-api/envoy/service/cluster/v3/cds.proto",
         "proto/data-plane-api/envoy/service/discovery/v3/ads.proto",
         "proto/data-plane-api/envoy/service/discovery/v3/discovery.proto",
+        "proto/data-plane-api/envoy/type/metadata/v3/metadata.proto",
+        "proto/data-plane-api/envoy/type/tracing/v3/custom_tag.proto",
         "proto/udpa/udpa/core/v1/resource_name.proto",
+        "proto/quilkin/extensions/filters/debug/v1alpha1/debug.proto",
     ]
     .iter()
     .map(|name| std::env::current_dir().unwrap().join(name))
@@ -33,6 +39,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         "proto/udpa",
         "proto/googleapis",
         "proto/protoc-gen-validate",
+        "proto/quilkin",
     ]
     .iter()
     .map(|i| std::env::current_dir().unwrap().join(i))
diff --git a/proto/quilkin/extensions/filters/debug/v1alpha1/debug.proto b/proto/quilkin/extensions/filters/debug/v1alpha1/debug.proto
new file mode 100644
index 0000000000..7f5b1d9ffa
--- /dev/null
+++ b/proto/quilkin/extensions/filters/debug/v1alpha1/debug.proto
@@ -0,0 +1,10 @@
+syntax = "proto3";
+
+package quilkin.extensions.filters.debug.v1alpha1;
+
+import "google/protobuf/wrappers.proto";
+
+message Debug {
+  google.protobuf.StringValue id = 1;
+}
+
diff --git a/src/extensions/filters/debug.rs b/src/extensions/filters/debug.rs
index 01cb0bdb8c..ba1bb1f382 100644
--- a/src/extensions/filters/debug.rs
+++ b/src/extensions/filters/debug.rs
@@ -22,6 +22,21 @@ use crate::extensions::filter_registry::{
 };
 use crate::extensions::Filter;
 
+/// Protobuf config for this filter.
+mod quilkin {
+    pub(crate) mod extensions {
+        pub(crate) mod filters {
+            pub(crate) mod debug {
+                pub(crate) mod v1alpha1 {
+                    #![cfg(not(doctest))]
+                    #![doc(hidden)]
+                    tonic::include_proto!("quilkin.extensions.filters.debug.v1alpha1");
+                }
+            }
+        }
+    }
+}
+
 /// Debug logs all incoming and outgoing packets
 ///
 /// # Configuration
diff --git a/src/xds/mod.rs b/src/xds/mod.rs
index 3e1bc45398..7820dec8cc 100644
--- a/src/xds/mod.rs
+++ b/src/xds/mod.rs
@@ -33,6 +33,20 @@ mod envoy {
                 tonic::include_proto!("envoy.r#type.matcher.v3");
             }
         }
+        pub mod metadata {
+            pub mod v3 {
+                #![cfg(not(doctest))]
+                #![doc(hidden)]
+                tonic::include_proto!("envoy.r#type.metadata.v3");
+            }
+        }
+        pub mod tracing {
+            pub mod v3 {
+                #![cfg(not(doctest))]
+                #![doc(hidden)]
+                tonic::include_proto!("envoy.r#type.tracing.v3");
+            }
+        }
         pub mod v3 {
             #![cfg(not(doctest))]
             #![doc(hidden)]
@@ -40,6 +54,13 @@ mod envoy {
         }
     }
     pub mod config {
+        pub mod accesslog {
+            pub mod v3 {
+                #![cfg(not(doctest))]
+                #![doc(hidden)]
+                tonic::include_proto!("envoy.config.accesslog.v3");
+            }
+        }
         pub mod cluster {
             pub mod v3 {
                 #![cfg(not(doctest))]
@@ -62,6 +83,20 @@ mod envoy {
                 tonic::include_proto!("envoy.config.endpoint.v3");
             }
         }
+        pub mod listener {
+            pub mod v3 {
+                #![cfg(not(doctest))]
+                #![doc(hidden)]
+                tonic::include_proto!("envoy.config.listener.v3");
+            }
+        }
+        pub mod route {
+            pub mod v3 {
+                #![cfg(not(doctest))]
+                #![doc(hidden)]
+                tonic::include_proto!("envoy.config.route.v3");
+            }
+        }
     }
     pub mod service {
         pub mod discovery {