diff --git a/codex-rs/core/src/plugins/startup_sync.rs b/codex-rs/core/src/plugins/startup_sync.rs
index 14608d1313..d60a8bf02c 100644
--- a/codex-rs/core/src/plugins/startup_sync.rs
+++ b/codex-rs/core/src/plugins/startup_sync.rs
@@ -19,7 +19,10 @@ use crate::config::Config;
 use codex_login::AuthManager;
 use codex_login::default_client::build_reqwest_client;
 
+use super::OPENAI_CURATED_MARKETPLACE_NAME;
 use super::PluginsManager;
+use super::marketplace_install_root;
+use super::record_installed_marketplace_root;
 
 const GITHUB_API_BASE_URL: &str = "https://api.github.com";
 const GITHUB_API_ACCEPT_HEADER: &str = "application/vnd.github+json";
@@ -28,7 +31,6 @@ const CURATED_PLUGINS_BACKUP_ARCHIVE_API_URL: &str =
     "https://chatgpt.com/backend-api/plugins/export/curated";
 const OPENAI_PLUGINS_OWNER: &str = "openai";
 const OPENAI_PLUGINS_REPO: &str = "plugins";
-const CURATED_PLUGINS_RELATIVE_DIR: &str = ".tmp/plugins";
 const CURATED_PLUGINS_SHA_FILE: &str = ".tmp/plugins.sha";
 const CURATED_PLUGINS_BACKUP_ARCHIVE_FALLBACK_VERSION: &str = "export-backup";
 const CURATED_PLUGINS_GIT_TIMEOUT: Duration = Duration::from_secs(30);
@@ -60,7 +62,7 @@ struct CuratedPluginsBackupArchiveResponse {
 }
 
 pub(crate) fn curated_plugins_repo_path(codex_home: &Path) -> PathBuf {
-    codex_home.join(CURATED_PLUGINS_RELATIVE_DIR)
+    marketplace_install_root(codex_home).join(OPENAI_CURATED_MARKETPLACE_NAME)
 }
 
 pub(crate) fn read_curated_plugins_sha(codex_home: &Path) -> Option<String> {
@@ -88,6 +90,7 @@ fn sync_openai_plugins_repo_with_transport_overrides(
 ) -> Result<String, String> {
     match sync_openai_plugins_repo_via_git(codex_home, git_binary) {
         Ok(remote_sha) => {
+            record_curated_marketplace_root(codex_home)?;
             emit_curated_plugins_startup_sync_metric("git", "success");
             emit_curated_plugins_startup_sync_final_metric("git", "success");
             Ok(remote_sha)
@@ -101,6 +104,7 @@ fn sync_openai_plugins_repo_with_transport_overrides(
             );
             match sync_openai_plugins_repo_via_http(codex_home, api_base_url) {
                 Ok(remote_sha) => {
+                    record_curated_marketplace_root(codex_home)?;
                     emit_curated_plugins_startup_sync_metric("http", "success");
                     emit_curated_plugins_startup_sync_final_metric("http", "success");
                     Ok(remote_sha)
@@ -131,11 +135,15 @@ fn sync_openai_plugins_repo_with_transport_overrides(
                         let status = if result.is_ok() { "success" } else { "failure" };
                         emit_curated_plugins_startup_sync_metric("export_archive", status);
                         emit_curated_plugins_startup_sync_final_metric("export_archive", status);
-                        result.map_err(|export_err| {
-                            format!(
+                        match result {
+                            Ok(remote_sha) => {
+                                record_curated_marketplace_root(codex_home)?;
+                                Ok(remote_sha)
+                            }
+                            Err(export_err) => Err(format!(
                                 "git sync failed for curated plugin sync: {err}; GitHub HTTP sync failed for curated plugin sync: {http_err}; export archive sync failed for curated plugin sync: {export_err}"
-                            )
-                        })
+                            )),
+                        }
                     }
                 }
             }
@@ -290,6 +298,17 @@ fn startup_remote_plugin_sync_marker_path(codex_home: &Path) -> PathBuf {
     codex_home.join(STARTUP_REMOTE_PLUGIN_SYNC_MARKER_FILE)
 }
 
+fn record_curated_marketplace_root(codex_home: &Path) -> Result<(), String> {
+    let repo_path = curated_plugins_repo_path(codex_home);
+    record_installed_marketplace_root(codex_home, OPENAI_CURATED_MARKETPLACE_NAME, &repo_path)
+        .map_err(|err| {
+            format!(
+                "failed to record curated marketplace root {}: {err}",
+                repo_path.display()
+            )
+        })
+}
+
 fn has_local_curated_plugins_snapshot(codex_home: &Path) -> bool {
     curated_plugins_repo_path(codex_home)
         .join(".agents/plugins/marketplace.json")
diff --git a/codex-rs/core/src/plugins/startup_sync_tests.rs b/codex-rs/core/src/plugins/startup_sync_tests.rs
index cd0b91f4db..e5b299831a 100644
--- a/codex-rs/core/src/plugins/startup_sync_tests.rs
+++ b/codex-rs/core/src/plugins/startup_sync_tests.rs
@@ -144,7 +144,7 @@ fn curated_plugins_repo_path_uses_codex_home_tmp_dir() {
     let tmp = tempdir().expect("tempdir");
     assert_eq!(
         curated_plugins_repo_path(tmp.path()),
-        tmp.path().join(".tmp/plugins")
+        tmp.path().join(".tmp/marketplaces/openai-curated")
     );
 }
 
@@ -254,6 +254,10 @@ exit 1
     assert!(repo_path.join(".git").is_dir());
     assert_curated_gmail_repo(&repo_path);
     assert_eq!(read_curated_plugins_sha(tmp.path()).as_deref(), Some(sha));
+    let registry =
+        std::fs::read_to_string(tmp.path().join(".tmp/known_marketplaces.json")).unwrap();
+    assert!(registry.contains(r#""name": "openai-curated""#));
+    assert!(registry.contains(r#""installLocation""#));
 }
 
 #[cfg(unix)]