diff --git a/cfgsync/adapter/src/lib.rs b/cfgsync/adapter/src/lib.rs
index 467630d..0e0c7fa 100644
--- a/cfgsync/adapter/src/lib.rs
+++ b/cfgsync/adapter/src/lib.rs
@@ -1,4 +1,4 @@
-use std::error::Error;
+use std::{collections::HashMap, error::Error};
 
 use thiserror::Error;
 
@@ -14,6 +14,44 @@ pub struct CfgsyncNodeConfig {
     pub config_yaml: String,
 }
 
+/// Precomputed node configs indexed by stable identifier.
+#[derive(Debug, Clone, Default)]
+pub struct CfgsyncNodeCatalog {
+    nodes: HashMap<String, CfgsyncNodeConfig>,
+}
+
+impl CfgsyncNodeCatalog {
+    #[must_use]
+    pub fn new(nodes: Vec<CfgsyncNodeConfig>) -> Self {
+        let nodes = nodes
+            .into_iter()
+            .map(|node| (node.identifier.clone(), node))
+            .collect();
+
+        Self { nodes }
+    }
+
+    #[must_use]
+    pub fn resolve(&self, identifier: &str) -> Option<&CfgsyncNodeConfig> {
+        self.nodes.get(identifier)
+    }
+
+    #[must_use]
+    pub fn len(&self) -> usize {
+        self.nodes.len()
+    }
+
+    #[must_use]
+    pub fn is_empty(&self) -> bool {
+        self.nodes.is_empty()
+    }
+
+    #[must_use]
+    pub fn into_configs(self) -> Vec<CfgsyncNodeConfig> {
+        self.nodes.into_values().collect()
+    }
+}
+
 /// Adapter contract for converting an application deployment model into
 /// node-specific serialized config payloads.
 pub trait CfgsyncEnv {
@@ -71,6 +109,14 @@ pub fn build_cfgsync_node_configs<E: CfgsyncEnv>(
     deployment: &E::Deployment,
     hostnames: &[String],
 ) -> Result<Vec<CfgsyncNodeConfig>, BuildCfgsyncNodesError> {
+    Ok(build_cfgsync_node_catalog::<E>(deployment, hostnames)?.into_configs())
+}
+
+/// Builds cfgsync node configs and indexes them by stable identifier.
+pub fn build_cfgsync_node_catalog<E: CfgsyncEnv>(
+    deployment: &E::Deployment,
+    hostnames: &[String],
+) -> Result<CfgsyncNodeCatalog, BuildCfgsyncNodesError> {
     let nodes = E::nodes(deployment);
     ensure_hostname_count(nodes.len(), hostnames.len())?;
 
@@ -79,7 +125,7 @@ pub fn build_cfgsync_node_configs<E: CfgsyncEnv>(
         output.push(build_node_entry::<E>(deployment, node, index, hostnames)?);
     }
 
-    Ok(output)
+    Ok(CfgsyncNodeCatalog::new(output))
 }
 
 fn ensure_hostname_count(nodes: usize, hostnames: usize) -> Result<(), BuildCfgsyncNodesError> {
@@ -117,3 +163,20 @@ fn build_rewritten_node_config<E: CfgsyncEnv>(
 
     Ok(node_config)
 }
+
+#[cfg(test)]
+mod tests {
+    use super::{CfgsyncNodeCatalog, CfgsyncNodeConfig};
+
+    #[test]
+    fn catalog_resolves_identifier() {
+        let catalog = CfgsyncNodeCatalog::new(vec![CfgsyncNodeConfig {
+            identifier: "node-1".to_owned(),
+            config_yaml: "key: value".to_owned(),
+        }]);
+
+        let node = catalog.resolve("node-1").expect("resolve node config");
+
+        assert_eq!(node.config_yaml, "key: value");
+    }
+}
diff --git a/cfgsync/core/src/client.rs b/cfgsync/core/src/client.rs
index 28e59b5..bfc07ec 100644
--- a/cfgsync/core/src/client.rs
+++ b/cfgsync/core/src/client.rs
@@ -1,10 +1,7 @@
 use serde::Serialize;
 use thiserror::Error;
 
-use crate::{
-    repo::{CfgSyncErrorResponse, CfgSyncPayload},
-    server::ClientIp,
-};
+use crate::repo::{CfgSyncErrorResponse, CfgSyncPayload, NodeRegistration};
 
 /// cfgsync client-side request/response failures.
 #[derive(Debug, Error)]
@@ -21,6 +18,12 @@ pub enum ClientError {
     Decode(serde_json::Error),
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum ConfigFetchStatus {
+    Ready,
+    NotReady,
+}
+
 /// Reusable HTTP client for cfgsync server endpoints.
 #[derive(Clone, Debug)]
 pub struct CfgSyncClient {
@@ -46,10 +49,15 @@ impl CfgSyncClient {
         &self.base_url
     }
 
+    /// Registers a node before requesting config.
+    pub async fn register_node(&self, payload: &NodeRegistration) -> Result<(), ClientError> {
+        self.post_status_only("/register", payload).await
+    }
+
     /// Fetches `/node` payload for a node identifier.
     pub async fn fetch_node_config(
         &self,
-        payload: &ClientIp,
+        payload: &NodeRegistration,
     ) -> Result<CfgSyncPayload, ClientError> {
         self.post_json("/node", payload).await
     }
@@ -57,11 +65,29 @@ impl CfgSyncClient {
     /// Fetches `/init-with-node` payload for a node identifier.
     pub async fn fetch_init_with_node_config(
         &self,
-        payload: &ClientIp,
+        payload: &NodeRegistration,
     ) -> Result<CfgSyncPayload, ClientError> {
         self.post_json("/init-with-node", payload).await
     }
 
+    pub async fn fetch_node_config_status(
+        &self,
+        payload: &NodeRegistration,
+    ) -> Result<ConfigFetchStatus, ClientError> {
+        match self.fetch_node_config(payload).await {
+            Ok(_) => Ok(ConfigFetchStatus::Ready),
+            Err(ClientError::Status {
+                status,
+                error: Some(error),
+                ..
+            }) if status == reqwest::StatusCode::TOO_EARLY => {
+                let _ = error;
+                Ok(ConfigFetchStatus::NotReady)
+            }
+            Err(error) => Err(error),
+        }
+    }
+
     /// Posts JSON payload to a cfgsync endpoint and decodes cfgsync payload.
     pub async fn post_json<P: Serialize>(
         &self,
@@ -89,6 +115,32 @@ impl CfgSyncClient {
         serde_json::from_str(&body).map_err(ClientError::Decode)
     }
 
+    async fn post_status_only<P: Serialize>(
+        &self,
+        path: &str,
+        payload: &P,
+    ) -> Result<(), ClientError> {
+        let url = self.endpoint_url(path);
+        let response = self.http.post(url).json(payload).send().await?;
+
+        let status = response.status();
+        let body = response.text().await?;
+        if !status.is_success() {
+            let error = serde_json::from_str::<CfgSyncErrorResponse>(&body).ok();
+            let message = error
+                .as_ref()
+                .map(|err| err.message.clone())
+                .unwrap_or_else(|| body.clone());
+            return Err(ClientError::Status {
+                status,
+                message,
+                error,
+            });
+        }
+
+        Ok(())
+    }
+
     fn endpoint_url(&self, path: &str) -> String {
         if path.starts_with('/') {
             format!("{}{}", self.base_url, path)
diff --git a/cfgsync/core/src/lib.rs b/cfgsync/core/src/lib.rs
index b6851e3..2807346 100644
--- a/cfgsync/core/src/lib.rs
+++ b/cfgsync/core/src/lib.rs
@@ -5,7 +5,7 @@ pub mod repo;
 pub mod server;
 
 pub use bundle::{CfgSyncBundle, CfgSyncBundleNode};
-pub use client::{CfgSyncClient, ClientError};
+pub use client::{CfgSyncClient, ClientError, ConfigFetchStatus};
 pub use render::{
     CfgsyncConfigOverrides, CfgsyncOutputPaths, RenderedCfgsync, apply_cfgsync_overrides,
     apply_timeout_floor, ensure_bundle_path, load_cfgsync_template_yaml,
@@ -13,6 +13,7 @@ pub use render::{
 };
 pub use repo::{
     CFGSYNC_SCHEMA_VERSION, CfgSyncErrorCode, CfgSyncErrorResponse, CfgSyncFile, CfgSyncPayload,
-    ConfigProvider, ConfigRepo, FileConfigProvider, FileConfigProviderError, RepoResponse,
+    ConfigProvider, ConfigRepo, FileConfigProvider, FileConfigProviderError, NodeRegistration,
+    RegistrationResponse, RepoResponse,
 };
-pub use server::{CfgSyncState, ClientIp, RunCfgsyncError, cfgsync_app, run_cfgsync};
+pub use server::{CfgSyncState, RunCfgsyncError, cfgsync_app, run_cfgsync};
diff --git a/cfgsync/core/src/repo.rs b/cfgsync/core/src/repo.rs
index 560e265..dbce99f 100644
--- a/cfgsync/core/src/repo.rs
+++ b/cfgsync/core/src/repo.rs
@@ -1,4 +1,10 @@
-use std::{collections::HashMap, fs, path::Path, sync::Arc};
+use std::{
+    collections::{HashMap, HashSet},
+    fs,
+    net::Ipv4Addr,
+    path::Path,
+    sync::{Arc, Mutex},
+};
 
 use cfgsync_artifacts::ArtifactFile;
 use serde::{Deserialize, Serialize};
@@ -22,6 +28,13 @@ pub struct CfgSyncPayload {
     pub files: Vec<CfgSyncFile>,
 }
 
+/// Node metadata recorded before config materialization.
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
+pub struct NodeRegistration {
+    pub identifier: String,
+    pub ip: Ipv4Addr,
+}
+
 impl CfgSyncPayload {
     #[must_use]
     pub fn from_files(files: Vec<CfgSyncFile>) -> Self {
@@ -46,6 +59,7 @@ impl CfgSyncPayload {
 #[serde(rename_all = "snake_case")]
 pub enum CfgSyncErrorCode {
     MissingConfig,
+    NotReady,
     Internal,
 }
 
@@ -66,6 +80,14 @@ impl CfgSyncErrorResponse {
         }
     }
 
+    #[must_use]
+    pub fn not_ready(identifier: &str) -> Self {
+        Self {
+            code: CfgSyncErrorCode::NotReady,
+            message: format!("config for host {identifier} is not ready"),
+        }
+    }
+
     #[must_use]
     pub fn internal(message: impl Into<String>) -> Self {
         Self {
@@ -81,25 +103,72 @@ pub enum RepoResponse {
     Error(CfgSyncErrorResponse),
 }
 
+/// Repository outcome for a node registration request.
+pub enum RegistrationResponse {
+    Registered,
+    Error(CfgSyncErrorResponse),
+}
+
 /// Read-only source for cfgsync node payloads.
 pub trait ConfigProvider: Send + Sync {
+    fn register(&self, registration: NodeRegistration) -> RegistrationResponse;
+
     fn resolve(&self, identifier: &str) -> RepoResponse;
 }
 
 /// In-memory map-backed provider used by cfgsync server state.
 pub struct ConfigRepo {
     configs: HashMap<String, CfgSyncPayload>,
+    registrations: Mutex<HashSet<String>>,
 }
 
 impl ConfigRepo {
     #[must_use]
     pub fn from_bundle(configs: HashMap<String, CfgSyncPayload>) -> Arc<Self> {
-        Arc::new(Self { configs })
+        Arc::new(Self {
+            configs,
+            registrations: Mutex::new(HashSet::new()),
+        })
+    }
+
+    fn register_identifier(&self, identifier: &str) -> RegistrationResponse {
+        if !self.configs.contains_key(identifier) {
+            return RegistrationResponse::Error(CfgSyncErrorResponse::missing_config(identifier));
+        }
+
+        let mut registrations = self
+            .registrations
+            .lock()
+            .expect("cfgsync registration store should not be poisoned");
+        registrations.insert(identifier.to_owned());
+
+        RegistrationResponse::Registered
+    }
+
+    fn is_registered(&self, identifier: &str) -> bool {
+        let registrations = self
+            .registrations
+            .lock()
+            .expect("cfgsync registration store should not be poisoned");
+
+        registrations.contains(identifier)
     }
 }
 
 impl ConfigProvider for ConfigRepo {
+    fn register(&self, registration: NodeRegistration) -> RegistrationResponse {
+        self.register_identifier(&registration.identifier)
+    }
+
     fn resolve(&self, identifier: &str) -> RepoResponse {
+        if !self.configs.contains_key(identifier) {
+            return RepoResponse::Error(CfgSyncErrorResponse::missing_config(identifier));
+        }
+
+        if !self.is_registered(identifier) {
+            return RepoResponse::Error(CfgSyncErrorResponse::not_ready(identifier));
+        }
+
         self.configs.get(identifier).cloned().map_or_else(
             || RepoResponse::Error(CfgSyncErrorResponse::missing_config(identifier)),
             RepoResponse::Config,
@@ -150,12 +219,19 @@ impl FileConfigProvider {
             .collect();
 
         Ok(Self {
-            inner: ConfigRepo { configs },
+            inner: ConfigRepo {
+                configs,
+                registrations: Mutex::new(HashSet::new()),
+            },
         })
     }
 }
 
 impl ConfigProvider for FileConfigProvider {
+    fn register(&self, registration: NodeRegistration) -> RegistrationResponse {
+        self.inner.register(registration)
+    }
+
     fn resolve(&self, identifier: &str) -> RepoResponse {
         self.inner.resolve(identifier)
     }
@@ -181,7 +257,10 @@ mod tests {
     fn resolves_existing_identifier() {
         let mut configs = HashMap::new();
         configs.insert("node-1".to_owned(), sample_payload());
-        let repo = ConfigRepo { configs };
+        let repo = ConfigRepo {
+            configs,
+            registrations: Mutex::new(HashSet::from(["node-1".to_owned()])),
+        };
 
         match repo.resolve("node-1") {
             RepoResponse::Config(payload) => {
@@ -197,6 +276,7 @@ mod tests {
     fn reports_missing_identifier() {
         let repo = ConfigRepo {
             configs: HashMap::new(),
+            registrations: Mutex::new(HashSet::new()),
         };
 
         match repo.resolve("unknown-node") {
@@ -225,9 +305,31 @@ nodes:
         let provider =
             FileConfigProvider::from_yaml_file(bundle_file.path()).expect("load file provider");
 
+        let _ = provider.register(NodeRegistration {
+            identifier: "node-1".to_owned(),
+            ip: "127.0.0.1".parse().expect("parse ip"),
+        });
+
         match provider.resolve("node-1") {
             RepoResponse::Config(payload) => assert_eq!(payload.files.len(), 1),
             RepoResponse::Error(error) => panic!("expected config, got {error}"),
         }
     }
+
+    #[test]
+    fn resolve_requires_registration_first() {
+        let mut configs = HashMap::new();
+        configs.insert("node-1".to_owned(), sample_payload());
+        let repo = ConfigRepo {
+            configs,
+            registrations: Mutex::new(HashSet::new()),
+        };
+
+        match repo.resolve("node-1") {
+            RepoResponse::Config(_) => panic!("expected not-ready error"),
+            RepoResponse::Error(error) => {
+                assert!(matches!(error.code, CfgSyncErrorCode::NotReady));
+            }
+        }
+    }
 }
diff --git a/cfgsync/core/src/server.rs b/cfgsync/core/src/server.rs
index e841610..330c80d 100644
--- a/cfgsync/core/src/server.rs
+++ b/cfgsync/core/src/server.rs
@@ -1,19 +1,11 @@
-use std::{io, net::Ipv4Addr, sync::Arc};
+use std::{io, sync::Arc};
 
 use axum::{Json, Router, extract::State, http::StatusCode, response::IntoResponse, routing::post};
-use serde::{Deserialize, Serialize};
 use thiserror::Error;
 
-use crate::repo::{CfgSyncErrorCode, ConfigProvider, RepoResponse};
-
-/// Request payload used by cfgsync client for node config resolution.
-#[derive(Serialize, Deserialize)]
-pub struct ClientIp {
-    /// Node IP that can be used by clients for observability/logging.
-    pub ip: Ipv4Addr,
-    /// Stable node identifier used as key in cfgsync bundle lookup.
-    pub identifier: String,
-}
+use crate::repo::{
+    CfgSyncErrorCode, ConfigProvider, NodeRegistration, RegistrationResponse, RepoResponse,
+};
 
 /// Runtime state shared across cfgsync HTTP handlers.
 pub struct CfgSyncState {
@@ -45,7 +37,7 @@ pub enum RunCfgsyncError {
 
 async fn node_config(
     State(state): State<Arc<CfgSyncState>>,
-    Json(payload): Json<ClientIp>,
+    Json(payload): Json<NodeRegistration>,
 ) -> impl IntoResponse {
     let response = resolve_node_config_response(&state, &payload.identifier);
 
@@ -59,6 +51,20 @@ async fn node_config(
     }
 }
 
+async fn register_node(
+    State(state): State<Arc<CfgSyncState>>,
+    Json(payload): Json<NodeRegistration>,
+) -> impl IntoResponse {
+    match state.repo.register(payload) {
+        RegistrationResponse::Registered => StatusCode::ACCEPTED.into_response(),
+        RegistrationResponse::Error(error) => {
+            let status = error_status(&error.code);
+
+            (status, Json(error)).into_response()
+        }
+    }
+}
+
 fn resolve_node_config_response(state: &CfgSyncState, identifier: &str) -> RepoResponse {
     state.repo.resolve(identifier)
 }
@@ -66,12 +72,14 @@ fn resolve_node_config_response(state: &CfgSyncState, identifier: &str) -> RepoR
 fn error_status(code: &CfgSyncErrorCode) -> StatusCode {
     match code {
         CfgSyncErrorCode::MissingConfig => StatusCode::NOT_FOUND,
+        CfgSyncErrorCode::NotReady => StatusCode::TOO_EARLY,
         CfgSyncErrorCode::Internal => StatusCode::INTERNAL_SERVER_ERROR,
     }
 }
 
 pub fn cfgsync_app(state: CfgSyncState) -> Router {
     Router::new()
+        .route("/register", post(register_node))
         .route("/node", post(node_config))
         .route("/init-with-node", post(node_config))
         .with_state(Arc::new(state))
@@ -100,10 +108,10 @@ mod tests {
 
     use axum::{Json, extract::State, http::StatusCode, response::IntoResponse};
 
-    use super::{CfgSyncState, ClientIp, node_config};
+    use super::{CfgSyncState, NodeRegistration, node_config, register_node};
     use crate::repo::{
         CFGSYNC_SCHEMA_VERSION, CfgSyncErrorCode, CfgSyncErrorResponse, CfgSyncFile,
-        CfgSyncPayload, ConfigProvider, RepoResponse,
+        CfgSyncPayload, ConfigProvider, RegistrationResponse, RepoResponse,
     };
 
     struct StaticProvider {
@@ -111,6 +119,16 @@ mod tests {
     }
 
     impl ConfigProvider for StaticProvider {
+        fn register(&self, registration: NodeRegistration) -> RegistrationResponse {
+            if self.data.contains_key(&registration.identifier) {
+                RegistrationResponse::Registered
+            } else {
+                RegistrationResponse::Error(CfgSyncErrorResponse::missing_config(
+                    &registration.identifier,
+                ))
+            }
+        }
+
         fn resolve(&self, identifier: &str) -> RepoResponse {
             self.data.get(identifier).cloned().map_or_else(
                 || RepoResponse::Error(CfgSyncErrorResponse::missing_config(identifier)),
@@ -131,13 +149,17 @@ mod tests {
         let mut data = HashMap::new();
         data.insert("node-a".to_owned(), sample_payload());
 
-        let provider = Arc::new(StaticProvider { data });
+        let provider = crate::repo::ConfigRepo::from_bundle(data);
         let state = Arc::new(CfgSyncState::new(provider));
-        let payload = ClientIp {
+        let payload = NodeRegistration {
             ip: "127.0.0.1".parse().expect("valid ip"),
             identifier: "node-a".to_owned(),
         };
 
+        let _ = register_node(State(state.clone()), Json(payload.clone()))
+            .await
+            .into_response();
+
         let response = node_config(State(state), Json(payload))
             .await
             .into_response();
@@ -151,7 +173,7 @@ mod tests {
             data: HashMap::new(),
         });
         let state = Arc::new(CfgSyncState::new(provider));
-        let payload = ClientIp {
+        let payload = NodeRegistration {
             ip: "127.0.0.1".parse().expect("valid ip"),
             identifier: "missing-node".to_owned(),
         };
@@ -169,4 +191,23 @@ mod tests {
 
         assert!(matches!(error.code, CfgSyncErrorCode::MissingConfig));
     }
+
+    #[tokio::test]
+    async fn node_config_returns_not_ready_before_registration() {
+        let mut data = HashMap::new();
+        data.insert("node-a".to_owned(), sample_payload());
+
+        let provider = crate::repo::ConfigRepo::from_bundle(data);
+        let state = Arc::new(CfgSyncState::new(provider));
+        let payload = NodeRegistration {
+            ip: "127.0.0.1".parse().expect("valid ip"),
+            identifier: "node-a".to_owned(),
+        };
+
+        let response = node_config(State(state), Json(payload))
+            .await
+            .into_response();
+
+        assert_eq!(response.status(), StatusCode::TOO_EARLY);
+    }
 }
diff --git a/cfgsync/runtime/src/client.rs b/cfgsync/runtime/src/client.rs
index aab3d1c..82dbe65 100644
--- a/cfgsync/runtime/src/client.rs
+++ b/cfgsync/runtime/src/client.rs
@@ -5,7 +5,9 @@ use std::{
 };
 
 use anyhow::{Context as _, Result, bail};
-use cfgsync_core::{CFGSYNC_SCHEMA_VERSION, CfgSyncClient, CfgSyncFile, CfgSyncPayload, ClientIp};
+use cfgsync_core::{
+    CFGSYNC_SCHEMA_VERSION, CfgSyncClient, CfgSyncFile, CfgSyncPayload, NodeRegistration,
+};
 use thiserror::Error;
 use tokio::time::{Duration, sleep};
 use tracing::info;
@@ -19,7 +21,7 @@ enum ClientEnvError {
     InvalidIp { value: String },
 }
 
-async fn fetch_with_retry(payload: &ClientIp, server_addr: &str) -> Result<CfgSyncPayload> {
+async fn fetch_with_retry(payload: &NodeRegistration, server_addr: &str) -> Result<CfgSyncPayload> {
     let client = CfgSyncClient::new(server_addr);
 
     for attempt in 1..=FETCH_ATTEMPTS {
@@ -40,13 +42,15 @@ async fn fetch_with_retry(payload: &ClientIp, server_addr: &str) -> Result<CfgSy
     unreachable!("cfgsync fetch loop always returns before exhausting attempts");
 }
 
-async fn fetch_once(client: &CfgSyncClient, payload: &ClientIp) -> Result<CfgSyncPayload> {
+async fn fetch_once(client: &CfgSyncClient, payload: &NodeRegistration) -> Result<CfgSyncPayload> {
     let response = client.fetch_node_config(payload).await?;
 
     Ok(response)
 }
 
-async fn pull_config_files(payload: ClientIp, server_addr: &str) -> Result<()> {
+async fn pull_config_files(payload: NodeRegistration, server_addr: &str) -> Result<()> {
+    register_node(&payload, server_addr).await?;
+
     let config = fetch_with_retry(&payload, server_addr)
         .await
         .context("fetching cfgsync node config")?;
@@ -63,6 +67,30 @@ async fn pull_config_files(payload: ClientIp, server_addr: &str) -> Result<()> {
     Ok(())
 }
 
+async fn register_node(payload: &NodeRegistration, server_addr: &str) -> Result<()> {
+    let client = CfgSyncClient::new(server_addr);
+
+    for attempt in 1..=FETCH_ATTEMPTS {
+        match client.register_node(payload).await {
+            Ok(()) => {
+                info!(identifier = %payload.identifier, "cfgsync node registered");
+                return Ok(());
+            }
+            Err(error) => {
+                if attempt == FETCH_ATTEMPTS {
+                    return Err(error).with_context(|| {
+                        format!("registering node with cfgsync after {attempt} attempts")
+                    });
+                }
+
+                sleep(FETCH_RETRY_DELAY).await;
+            }
+        }
+    }
+
+    unreachable!("cfgsync register loop always returns before exhausting attempts");
+}
+
 fn ensure_schema_version(config: &CfgSyncPayload) -> Result<()> {
     if config.schema_version != CFGSYNC_SCHEMA_VERSION {
         bail!(
@@ -118,7 +146,7 @@ pub async fn run_cfgsync_client_from_env(default_port: u16) -> Result<()> {
     let identifier =
         env::var("CFG_HOST_IDENTIFIER").unwrap_or_else(|_| "unidentified-node".to_owned());
 
-    pull_config_files(ClientIp { ip, identifier }, &server_addr).await
+    pull_config_files(NodeRegistration { ip, identifier }, &server_addr).await
 }
 
 fn parse_ip_env(ip_str: &str) -> Result<Ipv4Addr> {
@@ -164,7 +192,7 @@ mod tests {
         });
 
         pull_config_files(
-            ClientIp {
+            NodeRegistration {
                 ip: "127.0.0.1".parse().expect("parse ip"),
                 identifier: "node-1".to_owned(),
             },
diff --git a/logos/runtime/ext/src/cfgsync/mod.rs b/logos/runtime/ext/src/cfgsync/mod.rs
index 7fe4e44..074223d 100644
--- a/logos/runtime/ext/src/cfgsync/mod.rs
+++ b/logos/runtime/ext/src/cfgsync/mod.rs
@@ -1,5 +1,5 @@
 use anyhow::Result;
-use cfgsync_adapter::{CfgsyncEnv, build_cfgsync_node_configs};
+use cfgsync_adapter::{CfgsyncEnv, build_cfgsync_node_catalog};
 pub(crate) use cfgsync_core::render::CfgsyncOutputPaths;
 use cfgsync_core::{
     CfgSyncBundle, CfgSyncBundleNode,
@@ -49,7 +49,7 @@ fn build_cfgsync_bundle<E: CfgsyncEnv>(
     topology: &E::Deployment,
     hostnames: &[String],
 ) -> Result<CfgSyncBundle> {
-    let nodes = build_cfgsync_node_configs::<E>(topology, hostnames)?;
+    let nodes = build_cfgsync_node_catalog::<E>(topology, hostnames)?.into_configs();
     let nodes = nodes
         .into_iter()
         .map(|node| CfgSyncBundleNode {