diff --git a/codex-rs/Cargo.lock b/codex-rs/Cargo.lock
index 61ffd3a01..2c50f268f 100644
--- a/codex-rs/Cargo.lock
+++ b/codex-rs/Cargo.lock
@@ -2596,6 +2596,18 @@ dependencies = [
  "urlencoding",
 ]
 
+[[package]]
+name = "codex-connectors-extension"
+version = "0.0.0"
+dependencies = [
+ "codex-connectors",
+ "codex-core-plugins",
+ "codex-plugin",
+ "codex-utils-path-uri",
+ "serde_json",
+ "thiserror 2.0.18",
+]
+
 [[package]]
 name = "codex-context-fragments"
 version = "0.0.0"
diff --git a/codex-rs/Cargo.toml b/codex-rs/Cargo.toml
index abf5e0411..ef17cb9ce 100644
--- a/codex-rs/Cargo.toml
+++ b/codex-rs/Cargo.toml
@@ -48,6 +48,7 @@ members = [
     "exec-server",
     "execpolicy",
     "execpolicy-legacy",
+    "ext/connectors",
     "ext/extension-api",
     "ext/goal",
     "ext/guardian",
diff --git a/codex-rs/ext/connectors/BUILD.bazel b/codex-rs/ext/connectors/BUILD.bazel
new file mode 100644
index 000000000..304349b8a
--- /dev/null
+++ b/codex-rs/ext/connectors/BUILD.bazel
@@ -0,0 +1,6 @@
+load("//:defs.bzl", "codex_rust_crate")
+
+codex_rust_crate(
+    name = "connectors",
+    crate_name = "codex_connectors_extension",
+)
diff --git a/codex-rs/ext/connectors/Cargo.toml b/codex-rs/ext/connectors/Cargo.toml
new file mode 100644
index 000000000..1103ae4e2
--- /dev/null
+++ b/codex-rs/ext/connectors/Cargo.toml
@@ -0,0 +1,22 @@
+[package]
+edition.workspace = true
+license.workspace = true
+name = "codex-connectors-extension"
+version.workspace = true
+
+[lib]
+name = "codex_connectors_extension"
+path = "src/lib.rs"
+doctest = false
+test = false
+
+[lints]
+workspace = true
+
+[dependencies]
+codex-connectors = { workspace = true }
+codex-core-plugins = { workspace = true }
+codex-plugin = { workspace = true }
+codex-utils-path-uri = { workspace = true }
+serde_json = { workspace = true }
+thiserror = { workspace = true }
diff --git a/codex-rs/ext/connectors/src/executor_plugin.rs b/codex-rs/ext/connectors/src/executor_plugin.rs
new file mode 100644
index 000000000..c27ae3ac6
--- /dev/null
+++ b/codex-rs/ext/connectors/src/executor_plugin.rs
@@ -0,0 +1,64 @@
+use codex_connectors::parse_plugin_app_config;
+use codex_core_plugins::ResolvedExecutorPlugin;
+use codex_plugin::AppDeclaration;
+use codex_plugin::PluginResourceLocator;
+use codex_utils_path_uri::PathUri;
+use std::io;
+use thiserror::Error;
+
+/// Loads connector declarations from a resolved plugin through its owning executor.
+#[derive(Clone, Copy, Debug, Default)]
+pub struct ExecutorPluginConnectorProvider;
+
+/// Failure to load connector declarations from an executor plugin.
+#[derive(Debug, Error)]
+pub enum ExecutorPluginConnectorProviderError {
+    #[error("failed to read app config for selected plugin `{plugin_id}` at `{path}`: {source}")]
+    ReadConfig {
+        plugin_id: String,
+        path: PathUri,
+        #[source]
+        source: io::Error,
+    },
+    #[error("failed to parse app config for selected plugin `{plugin_id}` at `{path}`: {source}")]
+    ParseConfig {
+        plugin_id: String,
+        path: PathUri,
+        #[source]
+        source: serde_json::Error,
+    },
+}
+
+impl ExecutorPluginConnectorProvider {
+    /// Returns the connector declarations contributed by `plugin`.
+    pub async fn load(
+        &self,
+        plugin: &ResolvedExecutorPlugin,
+    ) -> Result<Vec<AppDeclaration>, ExecutorPluginConnectorProviderError> {
+        let resolved_plugin = plugin.plugin();
+        let plugin_id = resolved_plugin.selected_root_id();
+        let Some(PluginResourceLocator::Environment {
+            path: config_path, ..
+        }) = resolved_plugin.manifest().paths.apps.as_ref()
+        else {
+            return Ok(Vec::new());
+        };
+        let contents = plugin
+            .file_system()
+            .read_file_text(config_path, /*sandbox*/ None)
+            .await
+            .map_err(|source| ExecutorPluginConnectorProviderError::ReadConfig {
+                plugin_id: plugin_id.to_string(),
+                path: config_path.clone(),
+                source,
+            })?;
+
+        parse_plugin_app_config(&contents).map_err(|source| {
+            ExecutorPluginConnectorProviderError::ParseConfig {
+                plugin_id: plugin_id.to_string(),
+                path: config_path.clone(),
+                source,
+            }
+        })
+    }
+}
diff --git a/codex-rs/ext/connectors/src/lib.rs b/codex-rs/ext/connectors/src/lib.rs
new file mode 100644
index 000000000..f60e5f916
--- /dev/null
+++ b/codex-rs/ext/connectors/src/lib.rs
@@ -0,0 +1,6 @@
+//! Executor-backed connector declaration loading.
+
+mod executor_plugin;
+
+pub use executor_plugin::ExecutorPluginConnectorProvider;
+pub use executor_plugin::ExecutorPluginConnectorProviderError;