diff --git a/lib/crates/fabro-types/src/test_support.rs b/lib/crates/fabro-types/src/test_support.rs
index 2f2a2e147..9db7eff91 100644
--- a/lib/crates/fabro-types/src/test_support.rs
+++ b/lib/crates/fabro-types/src/test_support.rs
@@ -1,6 +1,4 @@
-use crate::{
-    AuthMethod, IdpIdentity, Principal, RunProvenance, RunServerProvenance, SystemActorKind,
-};
+use crate::{AuthMethod, IdpIdentity, Principal, RunProvenance, RunServerProvenance};
 
 #[must_use]
 pub fn test_principal() -> Principal {
@@ -21,16 +19,3 @@ pub fn test_run_provenance() -> RunProvenance {
         subject: test_principal(),
     }
 }
-
-/// Provenance attributed to the engine itself, with no server/client metadata.
-/// Used in tests that exercise system-initiated runs and serde round-trips.
-#[must_use]
-pub fn engine_run_provenance() -> RunProvenance {
-    RunProvenance {
-        server:  None,
-        client:  None,
-        subject: Principal::System {
-            system_kind: SystemActorKind::Engine,
-        },
-    }
-}
diff --git a/lib/crates/fabro-types/tests/run_event_serde.rs b/lib/crates/fabro-types/tests/run_event_serde.rs
index be824fa8c..1639089d2 100644
--- a/lib/crates/fabro-types/tests/run_event_serde.rs
+++ b/lib/crates/fabro-types/tests/run_event_serde.rs
@@ -6,7 +6,7 @@ use fabro_types::run_event::run::{RunCreatedProps, RunParentLinkedProps, RunPare
 use fabro_types::run_event::{RunSessionTurnFailedCode, RunSessionTurnFailedProps};
 use fabro_types::settings::InterpString;
 use fabro_types::settings::run::RunGoal;
-use fabro_types::test_support::engine_run_provenance;
+use fabro_types::test_support::test_run_provenance;
 use fabro_types::{EventBody, TurnId, WorkflowSettings, fixtures};
 
 fn templated_settings() -> WorkflowSettings {
@@ -28,7 +28,7 @@ fn run_created_props_round_trip_templated_settings() {
         source_directory: Some("/Users/client/project".to_string()),
         workflow_slug:    Some("demo".to_string()),
         db_prefix:        Some("run_".to_string()),
-        provenance:       engine_run_provenance(),
+        provenance:       test_run_provenance(),
         manifest_blob:    None,
         git:              Some(GitContext {
             origin_url:   "https://github.com/fabro-sh/fabro.git".to_string(),
@@ -90,7 +90,7 @@ fn run_created_props_omits_web_url_when_absent() {
         source_directory: None,
         workflow_slug:    None,
         db_prefix:        None,
-        provenance:       engine_run_provenance(),
+        provenance:       test_run_provenance(),
         manifest_blob:    None,
         git:              None,
         fork_source_ref:  None,
@@ -128,7 +128,7 @@ fn run_created_props_defaults_retried_from_when_absent() {
         "graph": Graph::new("ship"),
         "labels": {},
         "run_dir": "/tmp/run",
-        "provenance": engine_run_provenance()
+        "provenance": test_run_provenance()
     });
 
     let props: RunCreatedProps = serde_json::from_value(json).expect("props should deserialize");
diff --git a/lib/crates/fabro-types/tests/run_spec_methods.rs b/lib/crates/fabro-types/tests/run_spec_methods.rs
index 5004d87d7..76a853561 100644
--- a/lib/crates/fabro-types/tests/run_spec_methods.rs
+++ b/lib/crates/fabro-types/tests/run_spec_methods.rs
@@ -3,7 +3,7 @@ use std::collections::HashMap;
 use fabro_types::graph::Graph;
 use fabro_types::run::{DirtyStatus, GitContext, PreRunPushOutcome, RunSpec};
 use fabro_types::settings::{ProjectNamespace, WorkflowNamespace};
-use fabro_types::test_support::engine_run_provenance;
+use fabro_types::test_support::test_run_provenance;
 use fabro_types::{WorkflowSettings, fixtures};
 
 fn sample_run_spec() -> RunSpec {
@@ -27,7 +27,7 @@ fn sample_run_spec() -> RunSpec {
         workflow_slug: Some("demo".to_string()),
         source_directory: Some("/Users/client/project".to_string()),
         labels: HashMap::from([("team".to_string(), "platform".to_string())]),
-        provenance: engine_run_provenance(),
+        provenance: test_run_provenance(),
         manifest_blob: None,
         definition_blob: None,
         git: Some(GitContext {
diff --git a/lib/crates/fabro-types/tests/run_spec_serde.rs b/lib/crates/fabro-types/tests/run_spec_serde.rs
index ebe556f3d..8cd76c3df 100644
--- a/lib/crates/fabro-types/tests/run_spec_serde.rs
+++ b/lib/crates/fabro-types/tests/run_spec_serde.rs
@@ -4,7 +4,7 @@ use fabro_types::graph::Graph;
 use fabro_types::run::{DirtyStatus, ForkSourceRef, GitContext, PreRunPushOutcome, RunSpec};
 use fabro_types::settings::InterpString;
 use fabro_types::settings::run::RunGoal;
-use fabro_types::test_support::engine_run_provenance;
+use fabro_types::test_support::test_run_provenance;
 use fabro_types::{WorkflowSettings, fixtures};
 
 fn templated_settings() -> WorkflowSettings {
@@ -23,7 +23,7 @@ fn run_spec_round_trips_templated_settings() {
         workflow_slug:    Some("demo".to_string()),
         source_directory: Some("/Users/client/project".to_string()),
         labels:           HashMap::from([("team".to_string(), "platform".to_string())]),
-        provenance:       engine_run_provenance(),
+        provenance:       test_run_provenance(),
         manifest_blob:    None,
         definition_blob:  None,
         git:              Some(GitContext {