diff --git a/crates/traverse-runtime/tests/executor_tests.rs b/crates/traverse-runtime/tests/executor_tests.rs
index 108411ff..bfec3d04 100644
--- a/crates/traverse-runtime/tests/executor_tests.rs
+++ b/crates/traverse-runtime/tests/executor_tests.rs
@@ -1127,6 +1127,126 @@ fn wasm_executor_emit_event_handles_module_without_memory_export() -> Result<(),
     Ok(())
 }
 
+#[test]
+fn core_transition_action_status_emits_status_transitioned_on_accepted_transition()
+-> Result<(), String> {
+    let wasm_path = std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR")).join(
+        "../../examples/core-transition-action-status/artifacts/core-transition-action-status.wasm",
+    );
+    let wasm_bytes = std::fs::read(&wasm_path).map_err(|e| {
+        format!(
+            "failed to read {}: {e} (run examples/core-transition-action-status/build-fixture.sh first)",
+            wasm_path.display()
+        )
+    })?;
+
+    let executor = WasmExecutor::new().map_err(|e| format!("{e:?}"))?;
+    let input = json!({
+        "action_item_id": "item-emit-001",
+        "current_status": "open",
+        "requested_status": "in_progress",
+        "actor_id": "user-ada",
+        "owner_id": "user-ada",
+        "transition_config": {
+            "version": "1.0",
+            "allowed_transitions": {
+                "open": ["in_progress", "cancelled", "snoozed"],
+                "in_progress": ["blocked", "done", "cancelled", "snoozed"],
+                "blocked": ["in_progress", "cancelled"],
+                "snoozed": ["open", "in_progress", "cancelled"],
+                "done": [],
+                "cancelled": []
+            },
+            "owner_only": true
+        }
+    });
+
+    let output = executor
+        .run_bytes_with_capability(
+            &wasm_bytes,
+            &input,
+            "core.transition-action-status",
+            &[EventReference {
+                event_id: "core.action-item.status-transitioned".to_string(),
+                version: "1.0.0".to_string(),
+            }],
+            ServiceType::Subscribable,
+        )
+        .map_err(|e| format!("{e:?}"))?;
+
+    assert_eq!(output.value["allowed"], json!(true));
+    assert_eq!(output.value["reason_code"], json!("ok"));
+    assert_eq!(output.value["new_status"], json!("in_progress"));
+    assert_eq!(
+        output.emitted_events.len(),
+        1,
+        "accepted transition must emit exactly one governed event"
+    );
+    let event = &output.emitted_events[0];
+    assert_eq!(event.event_type, "core.action-item.status-transitioned");
+    assert_eq!(event.version, "1.0.0");
+    assert_eq!(event.data["action_item_id"], json!("item-emit-001"));
+    assert_eq!(event.data["from_status"], json!("open"));
+    assert_eq!(event.data["to_status"], json!("in_progress"));
+    assert_eq!(event.data["actor_id"], json!("user-ada"));
+    Ok(())
+}
+
+#[test]
+fn core_transition_action_status_does_not_emit_on_rejected_transition() -> Result<(), String> {
+    let wasm_path = std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR")).join(
+        "../../examples/core-transition-action-status/artifacts/core-transition-action-status.wasm",
+    );
+    let wasm_bytes = std::fs::read(&wasm_path).map_err(|e| {
+        format!(
+            "failed to read {}: {e} (run examples/core-transition-action-status/build-fixture.sh first)",
+            wasm_path.display()
+        )
+    })?;
+
+    let executor = WasmExecutor::new().map_err(|e| format!("{e:?}"))?;
+    let input = json!({
+        "action_item_id": "item-emit-002",
+        "current_status": "done",
+        "requested_status": "open",
+        "actor_id": "user-ada",
+        "owner_id": "user-ada",
+        "transition_config": {
+            "version": "1.0",
+            "allowed_transitions": {
+                "open": ["in_progress", "cancelled", "snoozed"],
+                "in_progress": ["blocked", "done", "cancelled", "snoozed"],
+                "blocked": ["in_progress", "cancelled"],
+                "snoozed": ["open", "in_progress", "cancelled"],
+                "done": [],
+                "cancelled": []
+            },
+            "owner_only": true
+        }
+    });
+
+    let output = executor
+        .run_bytes_with_capability(
+            &wasm_bytes,
+            &input,
+            "core.transition-action-status",
+            &[EventReference {
+                event_id: "core.action-item.status-transitioned".to_string(),
+                version: "1.0.0".to_string(),
+            }],
+            ServiceType::Subscribable,
+        )
+        .map_err(|e| format!("{e:?}"))?;
+
+    assert_eq!(output.value["allowed"], json!(false));
+    assert_eq!(output.value["reason_code"], json!("illegal_transition"));
+    assert!(
+        output.emitted_events.is_empty(),
+        "rejected transition must not emit"
+    );
+    Ok(())
+}
+
 // --- helpers ---
 
 fn native_capability(id: &str) -> ExecutorCapability {
diff --git a/examples/core-transition-action-status/artifacts/core-transition-action-status.wasm b/examples/core-transition-action-status/artifacts/core-transition-action-status.wasm
index aa17d384..d96d51b7 100755
Binary files a/examples/core-transition-action-status/artifacts/core-transition-action-status.wasm and b/examples/core-transition-action-status/artifacts/core-transition-action-status.wasm differ
diff --git a/examples/core-transition-action-status/contract.json b/examples/core-transition-action-status/contract.json
index b733bc6a..b4da37bb 100644
--- a/examples/core-transition-action-status/contract.json
+++ b/examples/core-transition-action-status/contract.json
@@ -4,18 +4,19 @@
   "id": "core.transition-action-status",
   "namespace": "core",
   "name": "transition-action-status",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "lifecycle": "active",
   "owner": {
     "team": "loop",
     "contact": "founders@loop.dev"
   },
-  "summary": "Deterministic state machine for action item status transitions (open \u2192 in_progress \u2192 blocked \u2192 snoozed \u2192 done / cancelled).",
-  "description": "Pure state-machine for action-item status transitions under a caller-supplied transition_config (allowed_transitions + owner_only).\n\nImplemented and smoke-tested matrix (use_cases):\n- open \u2192 in_progress (ok)\n- done \u2192 open illegal (illegal_transition)\n- open \u2192 snoozed (ok)\n- non-owner denied (not_owner)\n- in_progress \u2192 blocked (ok)\n- in_progress \u2192 done (ok)\n- blocked \u2192 in_progress (ok)\n- snoozed \u2192 open (ok)\n- open \u2192 cancelled (ok)\n- cancelled \u2192 open illegal (covers current_status=cancelled)\n- missing current_status \u2192 invalid_status\n\nKnown limitations (intentional in 1.2.0):\n- Transition graph is entirely caller-supplied; no built-in default policy\n- Does not persist status changes\n- Declares governed event core.action-item.status-transitioned@1.0.0 on accepted transitions; the WASM guest does not call the host emit ABI (declaration-only honesty with the published event product)",
+  "summary": "Deterministic state machine for action item status transitions (open → in_progress → blocked → snoozed → done / cancelled).",
+  "description": "Action-item status transitions under a caller-supplied transition_config (allowed_transitions + owner_only).\n\nImplemented and smoke-tested matrix (use_cases):\n- open → in_progress (ok)\n- done → open illegal (illegal_transition)\n- open → snoozed (ok)\n- non-owner denied (not_owner)\n- in_progress → blocked (ok)\n- in_progress → done (ok)\n- blocked → in_progress (ok)\n- snoozed → open (ok)\n- open → cancelled (ok)\n- cancelled → open illegal (covers current_status=cancelled)\n- missing current_status → invalid_status\n\nOn accepted transitions (reason_code=ok), the WASM guest calls traverse_host::emit_event for core.action-item.status-transitioned@1.0.0 with payload {action_item_id, from_status, to_status, actor_id}.\n\nKnown limitations (intentional in 1.3.0):\n- Transition graph is entirely caller-supplied; no built-in default policy\n- Does not persist status changes",
   "use_cases": [
     {
       "scenario": "As an owner, I want to move an item from open to in_progress, so that active work is reflected accurately.",
       "input_example": {
+        "action_item_id": "item-001",
         "current_status": "open",
         "requested_status": "in_progress",
         "actor_id": "user-ada",
@@ -54,7 +55,7 @@
         "new_status": "in_progress",
         "reason_code": "ok",
         "evaluation_trace": [
-          "open \u2192 in_progress is allowed",
+          "open → in_progress is allowed",
           "actor is owner"
         ]
       },
@@ -62,8 +63,9 @@
       "persona_ref": "meeting-organizer"
     },
     {
-      "scenario": "As a system, I want an illegal transition (done \u2192 open) rejected, so that completed work cannot silently reopen.",
+      "scenario": "As a system, I want an illegal transition (done → open) rejected, so that completed work cannot silently reopen.",
       "input_example": {
+        "action_item_id": "item-002",
         "current_status": "done",
         "requested_status": "open",
         "actor_id": "user-ada",
@@ -111,6 +113,7 @@
     {
       "scenario": "As an owner, I want to snooze an open item, so that I can pause follow-up without losing the item.",
       "input_example": {
+        "action_item_id": "item-003",
         "current_status": "open",
         "requested_status": "snoozed",
         "actor_id": "user-ada",
@@ -149,7 +152,7 @@
         "new_status": "snoozed",
         "reason_code": "ok",
         "evaluation_trace": [
-          "open \u2192 snoozed is allowed",
+          "open → snoozed is allowed",
           "actor is owner"
         ]
       },
@@ -159,6 +162,7 @@
     {
       "scenario": "As a system, I want a non-owner blocked when owner_only is true, so that only the owner can change status.",
       "input_example": {
+        "action_item_id": "item-004",
         "current_status": "open",
         "requested_status": "in_progress",
         "actor_id": "user-bob",
@@ -204,8 +208,9 @@
       "persona_ref": "runtime-engineer"
     },
     {
-      "scenario": "As an owner, I want in_progress \u2192 blocked, so that blockers are an explicit status, not tribal knowledge.",
+      "scenario": "As an owner, I want in_progress → blocked, so that blockers are an explicit status, not tribal knowledge.",
       "input_example": {
+        "action_item_id": "item-005",
         "current_status": "in_progress",
         "requested_status": "blocked",
         "actor_id": "user-ada",
@@ -244,15 +249,16 @@
         "new_status": "blocked",
         "reason_code": "ok",
         "evaluation_trace": [
-          "in_progress \u2192 blocked is allowed"
+          "in_progress → blocked is allowed"
         ]
       },
       "happy": true,
       "persona_ref": "meeting-organizer"
     },
     {
-      "scenario": "As an owner, I want in_progress \u2192 done, so that finished work can leave the active queue.",
+      "scenario": "As an owner, I want in_progress → done, so that finished work can leave the active queue.",
       "input_example": {
+        "action_item_id": "item-006",
         "current_status": "in_progress",
         "requested_status": "done",
         "actor_id": "user-ada",
@@ -291,15 +297,16 @@
         "new_status": "done",
         "reason_code": "ok",
         "evaluation_trace": [
-          "in_progress \u2192 done is allowed"
+          "in_progress → done is allowed"
         ]
       },
       "happy": true,
       "persona_ref": "meeting-organizer"
     },
     {
-      "scenario": "As an owner, I want blocked \u2192 in_progress, so that cleared blockers resume cleanly.",
+      "scenario": "As an owner, I want blocked → in_progress, so that cleared blockers resume cleanly.",
       "input_example": {
+        "action_item_id": "item-007",
         "current_status": "blocked",
         "requested_status": "in_progress",
         "actor_id": "user-ada",
@@ -338,15 +345,16 @@
         "new_status": "in_progress",
         "reason_code": "ok",
         "evaluation_trace": [
-          "blocked \u2192 in_progress is allowed"
+          "blocked → in_progress is allowed"
         ]
       },
       "happy": true,
       "persona_ref": "meeting-organizer"
     },
     {
-      "scenario": "As an owner, I want snoozed \u2192 open, so that snoozed items re-enter the follow-up pool.",
+      "scenario": "As an owner, I want snoozed → open, so that snoozed items re-enter the follow-up pool.",
       "input_example": {
+        "action_item_id": "item-008",
         "current_status": "snoozed",
         "requested_status": "open",
         "actor_id": "user-ada",
@@ -385,15 +393,16 @@
         "new_status": "open",
         "reason_code": "ok",
         "evaluation_trace": [
-          "snoozed \u2192 open is allowed"
+          "snoozed → open is allowed"
         ]
       },
       "happy": true,
       "persona_ref": "meeting-organizer"
     },
     {
-      "scenario": "As an owner, I want open \u2192 cancelled, so that abandoned work can exit without fake completion.",
+      "scenario": "As an owner, I want open → cancelled, so that abandoned work can exit without fake completion.",
       "input_example": {
+        "action_item_id": "item-009",
         "current_status": "open",
         "requested_status": "cancelled",
         "actor_id": "user-ada",
@@ -432,7 +441,7 @@
         "new_status": "cancelled",
         "reason_code": "ok",
         "evaluation_trace": [
-          "open \u2192 cancelled is allowed"
+          "open → cancelled is allowed"
         ]
       },
       "happy": true,
@@ -441,6 +450,7 @@
     {
       "scenario": "As a system, I want cancelled items to reject further transitions, so that cancelled work stays terminal.",
       "input_example": {
+        "action_item_id": "item-010",
         "current_status": "cancelled",
         "requested_status": "open",
         "actor_id": "user-ada",
@@ -488,6 +498,7 @@
     {
       "scenario": "As a system, I want missing current_status rejected with invalid_status, so that incomplete transition requests fail closed.",
       "input_example": {
+        "action_item_id": "item-011",
         "current_status": "",
         "requested_status": "open",
         "actor_id": "user-ada",
@@ -537,12 +548,16 @@
     "schema": {
       "type": "object",
       "required": [
+        "action_item_id",
         "current_status",
         "requested_status",
         "actor_id",
         "transition_config"
       ],
       "properties": {
+        "action_item_id": {
+          "type": "string"
+        },
         "current_status": {
           "type": "string",
           "enum": [
@@ -647,7 +662,7 @@
     },
     {
       "kind": "event_emission",
-      "description": "Declares domain fact core.action-item.status-transitioned when a transition is accepted (ok)"
+      "description": "Emits core.action-item.status-transitioned@1.0.0 via traverse_host::emit_event when a transition is accepted (ok)"
     }
   ],
   "emits": [
@@ -689,7 +704,7 @@
     "source": "ai-assisted",
     "author": "loop-founders + traverse-capability-author",
     "created_at": "2026-08-08T06:00:00Z",
-    "spec_ref": "core.transition-action-status@1.2.0",
+    "spec_ref": "core.transition-action-status@1.3.0",
     "adr_refs": [
       "persona-council-review-2026-08-08"
     ],
@@ -697,17 +712,18 @@
   },
   "evidence": [
     {
-      "evidence_id": "core-transition-action-status-1.2.0-contract-validation",
+      "evidence_id": "core-transition-action-status-1.3.0-contract-validation",
       "type": "contract_validation",
       "status": "passed"
     }
   ],
-  "service_type": "stateless",
+  "service_type": "subscribable",
   "permitted_targets": [
     "local",
     "edge",
     "browser",
     "cloud"
   ],
-  "artifact_type": "native"
+  "artifact_type": "native",
+  "event_trigger": "core.transition-action-status.triggered"
 }
diff --git a/examples/core-transition-action-status/manifest.json b/examples/core-transition-action-status/manifest.json
index 5d9ad058..72518023 100644
--- a/examples/core-transition-action-status/manifest.json
+++ b/examples/core-transition-action-status/manifest.json
@@ -2,17 +2,17 @@
   "kind": "capability_package",
   "schema_version": "1.0.0",
   "package_id": "core.transition-action-status-agent",
-  "version": "1.2.0",
-  "summary": "Capability package for core.transition-action-status@1.2.0.",
+  "version": "1.3.0",
+  "summary": "Capability package for core.transition-action-status@1.3.0.",
   "capability_ref": {
     "id": "core.transition-action-status",
-    "version": "1.2.0",
+    "version": "1.3.0",
     "contract_path": "./contract.json"
   },
   "workflow_refs": [
     {
       "workflow_id": "core.transition-action-status",
-      "workflow_version": "1.2.0"
+      "workflow_version": "1.3.0"
     }
   ],
   "source": {
@@ -23,7 +23,7 @@
   "binary": {
     "path": "./artifacts/core-transition-action-status.wasm",
     "format": "wasm",
-    "expected_digest": "fnv1a64:f392f46763fdd2af",
+    "expected_digest": "fnv1a64:3ac908d226fb7954",
     "abi_version": "1.0.0"
   },
   "constraints": {
diff --git a/examples/core-transition-action-status/runtime-requests/uc01-open-to-in-progress.json b/examples/core-transition-action-status/runtime-requests/uc01-open-to-in-progress.json
index ef6812fc..0ff3a148 100644
--- a/examples/core-transition-action-status/runtime-requests/uc01-open-to-in-progress.json
+++ b/examples/core-transition-action-status/runtime-requests/uc01-open-to-in-progress.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-01",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-01",
     "current_status": "open",
     "requested_status": "in_progress",
     "actor_id": "user-ada",
diff --git a/examples/core-transition-action-status/runtime-requests/uc02-done-to-open-illegal.json b/examples/core-transition-action-status/runtime-requests/uc02-done-to-open-illegal.json
index d703b7e7..9a40fdeb 100644
--- a/examples/core-transition-action-status/runtime-requests/uc02-done-to-open-illegal.json
+++ b/examples/core-transition-action-status/runtime-requests/uc02-done-to-open-illegal.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-02",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-02",
     "current_status": "done",
     "requested_status": "open",
     "actor_id": "user-ada",
diff --git a/examples/core-transition-action-status/runtime-requests/uc03-open-to-snoozed.json b/examples/core-transition-action-status/runtime-requests/uc03-open-to-snoozed.json
index d3f8e9d2..75f0b4d1 100644
--- a/examples/core-transition-action-status/runtime-requests/uc03-open-to-snoozed.json
+++ b/examples/core-transition-action-status/runtime-requests/uc03-open-to-snoozed.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-03",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-03",
     "current_status": "open",
     "requested_status": "snoozed",
     "actor_id": "user-ada",
diff --git a/examples/core-transition-action-status/runtime-requests/uc04-non-owner-denied.json b/examples/core-transition-action-status/runtime-requests/uc04-non-owner-denied.json
index ffeb6ff6..8885f545 100644
--- a/examples/core-transition-action-status/runtime-requests/uc04-non-owner-denied.json
+++ b/examples/core-transition-action-status/runtime-requests/uc04-non-owner-denied.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-04",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-04",
     "current_status": "open",
     "requested_status": "in_progress",
     "actor_id": "user-bob",
diff --git a/examples/core-transition-action-status/runtime-requests/uc05-in-progress-to-blocked.json b/examples/core-transition-action-status/runtime-requests/uc05-in-progress-to-blocked.json
index ba0b816f..262bd628 100644
--- a/examples/core-transition-action-status/runtime-requests/uc05-in-progress-to-blocked.json
+++ b/examples/core-transition-action-status/runtime-requests/uc05-in-progress-to-blocked.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-05",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-05",
     "current_status": "in_progress",
     "requested_status": "blocked",
     "actor_id": "user-ada",
diff --git a/examples/core-transition-action-status/runtime-requests/uc06-in-progress-to-done.json b/examples/core-transition-action-status/runtime-requests/uc06-in-progress-to-done.json
index 817c69c7..9d9dfdb0 100644
--- a/examples/core-transition-action-status/runtime-requests/uc06-in-progress-to-done.json
+++ b/examples/core-transition-action-status/runtime-requests/uc06-in-progress-to-done.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-06",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-06",
     "current_status": "in_progress",
     "requested_status": "done",
     "actor_id": "user-ada",
diff --git a/examples/core-transition-action-status/runtime-requests/uc07-blocked-to-in-progress.json b/examples/core-transition-action-status/runtime-requests/uc07-blocked-to-in-progress.json
index e7c5c5b0..3aca8105 100644
--- a/examples/core-transition-action-status/runtime-requests/uc07-blocked-to-in-progress.json
+++ b/examples/core-transition-action-status/runtime-requests/uc07-blocked-to-in-progress.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-07",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-07",
     "current_status": "blocked",
     "requested_status": "in_progress",
     "actor_id": "user-ada",
diff --git a/examples/core-transition-action-status/runtime-requests/uc08-snoozed-to-open.json b/examples/core-transition-action-status/runtime-requests/uc08-snoozed-to-open.json
index bf4493de..e64435e5 100644
--- a/examples/core-transition-action-status/runtime-requests/uc08-snoozed-to-open.json
+++ b/examples/core-transition-action-status/runtime-requests/uc08-snoozed-to-open.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-08",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-08",
     "current_status": "snoozed",
     "requested_status": "open",
     "actor_id": "user-ada",
diff --git a/examples/core-transition-action-status/runtime-requests/uc09-open-to-cancelled.json b/examples/core-transition-action-status/runtime-requests/uc09-open-to-cancelled.json
index cea9a8ae..efd8fbb7 100644
--- a/examples/core-transition-action-status/runtime-requests/uc09-open-to-cancelled.json
+++ b/examples/core-transition-action-status/runtime-requests/uc09-open-to-cancelled.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-09",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-09",
     "current_status": "open",
     "requested_status": "cancelled",
     "actor_id": "user-ada",
diff --git a/examples/core-transition-action-status/runtime-requests/uc10-cancelled-to-open-illegal.json b/examples/core-transition-action-status/runtime-requests/uc10-cancelled-to-open-illegal.json
index 07bbcc90..03893420 100644
--- a/examples/core-transition-action-status/runtime-requests/uc10-cancelled-to-open-illegal.json
+++ b/examples/core-transition-action-status/runtime-requests/uc10-cancelled-to-open-illegal.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-10",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-10",
     "current_status": "cancelled",
     "requested_status": "open",
     "actor_id": "user-ada",
diff --git a/examples/core-transition-action-status/runtime-requests/uc11-invalid-status.json b/examples/core-transition-action-status/runtime-requests/uc11-invalid-status.json
index 16755745..e84604ee 100644
--- a/examples/core-transition-action-status/runtime-requests/uc11-invalid-status.json
+++ b/examples/core-transition-action-status/runtime-requests/uc11-invalid-status.json
@@ -4,9 +4,10 @@
   "request_id": "core-transition-action-status-11",
   "intent": {
     "capability_id": "core.transition-action-status",
-    "capability_version": "1.2.0"
+    "capability_version": "1.3.0"
   },
   "input": {
+    "action_item_id": "item-11",
     "current_status": "",
     "requested_status": "open",
     "actor_id": "user-ada",
diff --git a/examples/core-transition-action-status/src/agent.rs b/examples/core-transition-action-status/src/agent.rs
index ff51d5ca..b05a1e51 100644
--- a/examples/core-transition-action-status/src/agent.rs
+++ b/examples/core-transition-action-status/src/agent.rs
@@ -1,8 +1,9 @@
-//! core.transition-action-status — pure action-item status state machine.
+//! core.transition-action-status — action-item status state machine with governed emit.
 //!
 //! Evaluates whether `current_status → requested_status` is allowed under a
 //! caller-supplied `transition_config`, optionally requiring the actor to be
-//! the owner. Covers open/in_progress/blocked/snoozed/done/cancelled.
+//! the owner. On accepted transitions, emits
+//! `core.action-item.status-transitioned@1.0.0` via `traverse_host::emit_event`.
 #![no_std]
 #![no_main]
 
@@ -23,8 +24,14 @@ unsafe extern "C" {
     fn fd_write(fd: u32, vectors: *const IoVec, count: usize, written: *mut usize) -> u32;
 }
 
+#[link(wasm_import_module = "traverse_host")]
+unsafe extern "C" {
+    fn emit_event(ptr: i32, len: i32) -> i32;
+}
+
 static mut INPUT_BUF: [u8; 8192] = [0; 8192];
 static mut OUTPUT_BUF: [u8; 4096] = [0; 4096];
+static mut EVENT_BUF: [u8; 1024] = [0; 1024];
 
 #[unsafe(no_mangle)]
 pub extern "C" fn _start() {
@@ -55,13 +62,19 @@ pub extern "C" fn _start() {
 }
 
 unsafe fn evaluate(input: &[u8], out: &mut [u8]) -> usize {
+    let action_item_id = extract_string_at_depth(input, b"\"action_item_id\"", 1);
     let current = extract_string_at_depth(input, b"\"current_status\"", 1);
     let requested = extract_string_at_depth(input, b"\"requested_status\"", 1);
     let actor = extract_string_at_depth(input, b"\"actor_id\"", 1);
     let owner = extract_string_at_depth(input, b"\"owner_id\"", 1);
     let config = object_after_key(input, b"\"transition_config\"").unwrap_or(b"");
 
-    if current.is_empty() || requested.is_empty() || actor.is_empty() || config.is_empty() {
+    if action_item_id.is_empty()
+        || current.is_empty()
+        || requested.is_empty()
+        || actor.is_empty()
+        || config.is_empty()
+    {
         return write_result(
             out,
             false,
@@ -143,9 +156,37 @@ unsafe fn evaluate(input: &[u8], out: &mut [u8]) -> usize {
         t = copy(&mut trace, t, b", \"actor is owner\"");
     }
     t = copy(&mut trace, t, b"]");
+
+    emit_status_transitioned(action_item_id, current, requested, actor);
+
     write_result(out, true, requested, b"ok", &trace[..t])
 }
 
+/// Build and emit the governed status-transitioned event. Best-effort: a
+/// non-zero host status does not change the capability's own evaluation result.
+unsafe fn emit_status_transitioned(
+    action_item_id: &[u8],
+    from_status: &[u8],
+    to_status: &[u8],
+    actor_id: &[u8],
+) {
+    let buf = &mut EVENT_BUF;
+    let mut i = 0usize;
+    i = copy(buf, i, br#"{"event_id":"core.action-item.status-transitioned","version":"1.0.0","payload":{"action_item_id":""#);
+    i = copy(buf, i, action_item_id);
+    i = copy(buf, i, br#"","from_status":""#);
+    i = copy(buf, i, from_status);
+    i = copy(buf, i, br#"","to_status":""#);
+    i = copy(buf, i, to_status);
+    i = copy(buf, i, br#"","actor_id":""#);
+    i = copy(buf, i, actor_id);
+    i = copy(buf, i, br#""}}"#);
+    if i == 0 || i > buf.len() {
+        return;
+    }
+    let _ = emit_event(buf.as_ptr() as i32, i as i32);
+}
+
 fn is_known_status(s: &[u8]) -> bool {
     matches!(
         s,
diff --git a/examples/core-transition-action-status/workflows/transition-action-status/workflow.json b/examples/core-transition-action-status/workflows/transition-action-status/workflow.json
index d42b14d2..ea901226 100644
--- a/examples/core-transition-action-status/workflows/transition-action-status/workflow.json
+++ b/examples/core-transition-action-status/workflows/transition-action-status/workflow.json
@@ -3,7 +3,7 @@
   "schema_version": "1.0.0",
   "id": "core.transition-action-status",
   "name": "transition-action-status",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "lifecycle": "active",
   "owner": {
     "team": "loop",
@@ -14,6 +14,7 @@
     "schema": {
       "type": "object",
       "required": [
+        "action_item_id",
         "current_status",
         "requested_status",
         "actor_id",
@@ -37,9 +38,10 @@
     {
       "node_id": "transition",
       "capability_id": "core.transition-action-status",
-      "capability_version": "1.2.0",
+      "capability_version": "1.3.0",
       "input": {
         "from_workflow_input": [
+          "action_item_id",
           "current_status",
           "requested_status",
           "actor_id",
diff --git a/scripts/ci/core_transition_action_status_example_smoke.sh b/scripts/ci/core_transition_action_status_example_smoke.sh
index 01b807fb..9e97b98a 100755
--- a/scripts/ci/core_transition_action_status_example_smoke.sh
+++ b/scripts/ci/core_transition_action_status_example_smoke.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# End-to-end smoke for examples/core-transition-action-status (core.transition-action-status@1.2.0).
+# End-to-end smoke for examples/core-transition-action-status (core.transition-action-status@1.3.0).
 
 set -euo pipefail
 
@@ -28,7 +28,8 @@ echo "==> capability inspect"
 contract_out="$("${cli[@]}" capability inspect "$pkg/contract.json")"
 printf '%s\n' "$contract_out"
 require_match "$contract_out" "id: core.transition-action-status" "contract inspect id"
-require_match "$contract_out" "version: 1.2.0" "contract inspect version"
+require_match "$contract_out" "version: 1.3.0" "contract inspect version"
+require_match "$contract_out" "service_type: subscribable" "contract inspect service_type"
 
 echo "==> wasm abi verify"
 abi_out="$("${cli[@]}" wasm abi verify "$pkg/artifacts/core-transition-action-status.wasm")"
@@ -39,7 +40,7 @@ echo "==> capability-package inspect"
 pkg_out="$("${cli[@]}" capability-package inspect "$pkg/manifest.json")"
 printf '%s\n' "$pkg_out"
 require_match "$pkg_out" "package_id: core.transition-action-status-agent" "package_id"
-require_match "$pkg_out" "capability_version: 1.2.0" "capability_version"
+require_match "$pkg_out" "capability_version: 1.3.0" "capability_version"
 
 assert_execute() {
   local request="$1"
@@ -53,7 +54,7 @@ assert_execute() {
   out="$("${cli[@]}" capability-package execute "$pkg/manifest.json" "$request")"
   printf '%s\n' "$out"
   require_match "$out" "status: completed" "$label status"
-  require_match "$out" "capability_version: 1.2.0" "$label capability_version"
+  require_match "$out" "capability_version: 1.3.0" "$label capability_version"
   require_match "$out" "\"allowed\": $allowed" "$label allowed"
   require_match "$out" "\"reason_code\": \"$code\"" "$label reason_code"
   if [[ -n "$extra" ]]; then
@@ -73,4 +74,7 @@ assert_execute "$pkg/runtime-requests/uc09-open-to-cancelled.json" "true" "ok" "
 assert_execute "$pkg/runtime-requests/uc10-cancelled-to-open-illegal.json" "false" "illegal_transition" "UC-10" '"new_status": "cancelled"'
 assert_execute "$pkg/runtime-requests/uc11-invalid-status.json" "false" "invalid_status" "UC-11"
 
-echo "OK: core.transition-action-status 1.2.0 E2E smoke passed"
+echo "==> real emit_event via WasmExecutor"
+cargo test -q -p traverse-runtime --test executor_tests core_transition_action_status_
+
+echo "OK: core.transition-action-status 1.3.0 E2E smoke passed"