Add ACP agent backend and terminal controls

crates/galaxy_features/src/features_tests.rs

@@ -19,6 +19,13 @@ fn local_child_harnesses_are_local_only_by_default() {
     assert!(!DOGFOOD_FLAGS.contains(&FeatureFlag::LocalClaudeCodexChildHarnesses));
 }
 
+#[test]
+fn acp_backend_is_enabled_for_dogfood() {
+    assert!(DOGFOOD_FLAGS.contains(&FeatureFlag::AgentClientProtocol));
+    assert!(!PREVIEW_FLAGS.contains(&FeatureFlag::AgentClientProtocol));
+    assert!(!RELEASE_FLAGS.contains(&FeatureFlag::AgentClientProtocol));
+}
+
 #[test]
 fn dogfood_flags_do_not_enable_upstream_hosted_services() {
     for flag in [

crates/galaxy_features/src/lib.rs

@@ -79,6 +79,9 @@ pub enum FeatureFlag {
     /// Warp Agent Mode.
     AgentMode,
 
+    /// Enables local Agent Client Protocol (ACP) conversation backends.
+    AgentClientProtocol,
+
     /// Whether the user is part of the Warp Alpha Program (AI Trusted Testers).
     /// This is enabled automatically for local and dev builds.
     /// Collect conversation and input autodetection data for agent mode.
@@ -937,6 +940,7 @@ pub const LOCAL_FLAGS: &[FeatureFlag] = &[FeatureFlag::LocalClaudeCodexChildHarn
 /// Features enabled for the development team.  The expectation is that, over
 /// time, these will move on to PREVIEW_FLAGS before being launched.
 pub const DOGFOOD_FLAGS: &[FeatureFlag] = &[
+    FeatureFlag::AgentClientProtocol,
     FeatureFlag::ToggleBootstrapBlock,
     FeatureFlag::RemoveAutosuggestionDuringTabCompletions,
     FeatureFlag::ResizeFix,