2 files changed, 10 insertions, 0 deletions
diff --git a/src/api/schema/server.rs b/src/api/schema/server.rs
index 7ceda633..96e51564 100644
--- a/src/api/schema/server.rs
+++ b/src/api/schema/server.rs
@@ -18,4 +18,7 @@ pub struct ServerCapabilities {
     pub live_handoff: bool,
     #[serde(default)]
     pub detached_server_daemon: bool,
+    /// Stable client-owned endpoint generation supported by this server.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub endpoint_protocol_generation: Option<u32>,
 }
diff --git a/src/api/schema/tests.rs b/src/api/schema/tests.rs
index e4a7f2a3..06529f5e 100644
--- a/src/api/schema/tests.rs
+++ b/src/api/schema/tests.rs
@@ -708,6 +708,12 @@ fn scroll_changed_subscription_event_round_trips() {
 }
 
 #[test]
+fn agent_status_request_values_remain_strict() {
+    assert!(serde_json::from_str::<AgentStatus>(r#""working""#).is_ok());
+    assert!(serde_json::from_str::<AgentStatus>(r#""future_status""#).is_err());
+}
+
+#[test]
 fn success_response_round_trips() {
     let response = SuccessResponse {
         id: "req_1".into(),
@@ -717,6 +723,7 @@ fn success_response_round_trips() {
             capabilities: Some(ServerCapabilities {
                 live_handoff: true,
                 detached_server_daemon: true,
+                endpoint_protocol_generation: Some(1),
             }),
         },
     };