diff --git a/autoload/simulation_runtime.gd b/autoload/simulation_runtime.gd
index b2eca36..27bb139 100644
--- a/autoload/simulation_runtime.gd
+++ b/autoload/simulation_runtime.gd
@@ -330,6 +330,7 @@ func initialize(clock: SimulationKernel, state: Variant, seed := DEFAULT_WORLD_S
 	register_command_executor(&"begin_staff_task", Callable(self, "_execute_begin_staff_task"))
 	register_command_executor(&"progress_staff_task", Callable(self, "_execute_progress_staff_task"))
 	register_command_executor(&"create_relationship", Callable(self, "_execute_create_relationship"))
+	register_command_executor(&"register_original_relationship", Callable(self, "_execute_register_original_relationship"))
 	register_command_executor(&"change_relationship", Callable(self, "_execute_change_relationship"))
 	register_command_executor(&"attack_relationship_shield", Callable(self, "_execute_attack_relationship_shield"))
 	register_command_executor(&"request_route_lock", Callable(self, "_execute_request_route_lock"))
@@ -1054,8 +1055,15 @@ func _restore_snapshot_internal(snapshot: Dictionary, recovery_mode: bool) -> bo
 	):
 		return false
 	var restored_relationships := RelationshipService.new()
+	restored_relationships.configure_original_identity_validator(
+		func(payload: Dictionary) -> bool: return _original_relationship_identities_valid(payload, restored_staff)
+	)
 	if not restored_relationships.restore_snapshot(runtime_data[&"relationships"]):
 		return false
+	for relationship: RelationshipState in restored_relationships.get_relationships():
+		for actor_id: StringName in [relationship.actor_a_id, relationship.actor_b_id]:
+			if actor_id != &"player" and not restored_staff.has_staff(actor_id) and not restored_guests.has_guest(actor_id):
+				return false
 	var restored_events := EventService.new()
 	for raw_definition: Variant in runtime_data[&"event_definitions"]:
 		var definition := EventDefinition.from_variant(raw_definition)
@@ -5378,6 +5386,9 @@ func _initialize_s4_relationship_events() -> void:
 func _configure_relationship_event_boundaries() -> void:
 	if relationship_service == null or event_service == null:
 		return
+	relationship_service.configure_original_identity_validator(
+		func(payload: Dictionary) -> bool: return _original_relationship_identities_valid(payload, staff_service)
+	)
 	relationship_service.configure_candidate_callback(
 		Callable(self, "_on_relationship_threshold_candidate")
 	)
@@ -6759,6 +6770,30 @@ func _execute_progress_staff_task(command: SimulationCommand) -> CommandResult:
 	result.command_id = command.command_id
 	return result
 
+func _original_relationship_identities_valid(payload: Dictionary, staff_registry: StaffService) -> bool:
+	if payload.get("protagonist_id") != "player" or staff_registry == null:
+		return false
+	var subject := StringName(payload.get("subject_id", ""))
+	var rival := StringName(payload.get("rival_id", ""))
+	if subject == &"player" or rival == &"player" or subject == rival or not staff_registry.has_staff(subject):
+		return false
+	var heroine_definition := mvp_content_catalog.get_entry(&"unique_characters", subject)
+	var rival_definition := mvp_content_catalog.get_entry(&"unique_characters", rival)
+	var subject_staff := staff_registry.get_staff(subject)
+	return subject_staff.employment_kind == StaffRuntime.EmploymentKind.UNIQUE \
+		and heroine_definition.get(&"role_id") == String(subject_staff.role_id) \
+		and heroine_definition.get(&"character_kind") == "heroine" \
+		and rival_definition.get(&"character_kind") == "rival" \
+		and heroine_definition.get(&"counterpart_id") == String(rival) \
+		and rival_definition.get(&"counterpart_id") == String(subject)
+
+
+func _execute_register_original_relationship(command: SimulationCommand) -> CommandResult:
+	var result := relationship_service.register_original_relationship(command.payload)
+	result.command_id = command.command_id
+	return result
+
+
 func _execute_create_relationship(command: SimulationCommand) -> CommandResult:
 	var actor_a_id := StringName(command.payload.get(&"actor_a_id", command.payload.get("actor_a_id", "")))
 	var actor_b_id := StringName(command.payload.get(&"actor_b_id", command.payload.get("actor_b_id", "")))
@@ -10859,6 +10894,7 @@ func get_staff_management_report() -> Dictionary:
 			&"can_edit": block_reason.is_empty(),
 			&"assignment_block_reason": block_reason,
 			&"unique_contract": _staff_unique_contract_report(staff),
+			&"original_relationship": relationship_service.get_original_relationship(staff.staff_id),
 		})
 	var facilities: Array[Dictionary] = []
 	for facility: FacilityInstance in facility_service.get_instances():
diff --git a/docs/plans/original-completion-2026-10-02/execution/completion_marker_contracts.json b/docs/plans/original-completion-2026-10-02/execution/completion_marker_contracts.json
index 9438e65..5474439 100644
--- a/docs/plans/original-completion-2026-10-02/execution/completion_marker_contracts.json
+++ b/docs/plans/original-completion-2026-10-02/execution/completion_marker_contracts.json
@@ -2,6 +2,28 @@
   "schema_version": 1,
   "scope": "exact per-suite completion label/schema; all check counts from actual raw only",
   "rows": [
+    {
+      "test": "tests/s4/test_original_relationship_model.gd",
+      "template": "Original relationship model: <checks> checks, <failures> failures",
+      "required": true,
+      "fixed_check_count_used": false,
+      "source_sha256_at_schema_audit": "ad509f5fb67ab91e1d1d99a08af51e4695e411b9a2541ea63ee22b1555cb0924",
+      "authority": {
+        "path": "docs/spec/acceptance/P18-01-code-r01.json",
+        "scope": "new backend suite marker; native execution pending"
+      }
+    },
+    {
+      "test": "tests/s4/test_original_relationship_runtime.gd",
+      "template": "Original relationship runtime: <checks> checks, <failures> failures",
+      "required": true,
+      "fixed_check_count_used": false,
+      "source_sha256_at_schema_audit": "374f3d31a65d2f2b62dfef29721c8c838575b856f4fa5a0bca31c6ba4c7e09dd",
+      "authority": {
+        "path": "docs/spec/acceptance/P18-01-code-r01.json",
+        "scope": "new backend suite marker; native execution pending"
+      }
+    },
     {
       "test": "tests/ui/test_selection_departure.gd",
       "template": "Selection departure: <checks> checks, <failures> failures",
diff --git a/docs/plans/original-completion-2026-10-02/execution/p18-01-code/IMPLEMENTATION.md b/docs/plans/original-completion-2026-10-02/execution/p18-01-code/IMPLEMENTATION.md
new file mode 100644
index 0000000..453eeb2
--- /dev/null
+++ b/docs/plans/original-completion-2026-10-02/execution/p18-01-code/IMPLEMENTATION.md
@@ -0,0 +1,79 @@
+# P18-01-CODE implementation handoff
+
+Status: submitted for Runner validation; no acceptance or unit completion claimed.
+
+Scope: dedicated original relationship state, lossless legacy snapshot preservation,
+Runtime registration and read projection, and the contract-listed tests and collector.
+Production initial values and gameplay coefficients are not supplied or inferred.
+
+Validation: worker static inspection only; authoritative native local and affected
+validation, independent review, and integration belong to Runner.
+
+Source inspection: HEAD matches d2a1f80a613e7c77b02b941026bc49c2d85db863.
+The acceptance specification without its final newline matches the contract SHA256
+04e9ae701b6ee1e399542564add695ca7fce54499e52dd2e907b1dbdc23a366d.
+
+## Submitted behavior
+
+- OriginalRelationshipState stores explicit directional subject/protagonist/rival
+  facts with Affection, Lust, Netorare and shield current/max. All fields are
+  required for a configured record. Numeric inputs must be finite numbers;
+  shield current must be nonnegative and at most max, and max equals Affection.
+  No additional emotion ranges, coefficients or production values are imposed.
+- RelationshipService retains its five-axis API. Its v2 snapshot contains the
+  whole v1 payload under `legacy`, plus separate `original_relationships`.
+  Top-level `relationships` is a compatibility projection for existing consumers;
+  disagreement with `legacy.relationships` is rejected. Additional legacy fields,
+  raw aliases, collection order and untouched values survive migration. The
+  existing normalized state remains usable; only actual legacy changes are merged
+  into retained raw facts. Aliases never initialize original fields.
+- Registration uses `register_original_relationship` with the complete payload.
+  Runtime validates the protagonist against `player`, the subject against hired
+  UNIQUE staff and its canonical role, and heroine/rival identities and reciprocal
+  counterpart references against the existing unique-character catalog. Rival
+  catalog membership does not invent recruitment. No new original update policy,
+  contact, route, attack, threshold or duel behavior is defined.
+- Snapshot restore validates candidates before replacing live services, then
+  rebinds the identity validator to live staff. Existing legacy actor references
+  must resolve against player, restored staff or restored guests.
+- Every staff-management row exposes `original_relationship`. Missing records
+  have `configured: false` and null values, distinct from explicit zero. Configured
+  projections are copies, so reads and caller edits cannot change service state.
+
+## Validation and handoff
+
+Two new s4 suites exercise explicit/unset/zero data, malformed and nonfinite values,
+identity invariants, lossless raw aliases/extensions, new and mixed round trips,
+atomic service/Runtime rejection, actual hiring/commands, restore/rebind and reports.
+Existing test bodies and limits are unchanged. New marker and suite-policy rows
+are pinned to the exact new test sources.
+
+`python3 -B tools/run_p18_relationship_tests.py --prepare-only` previews the exact
+seven-suite roster, source bytes, capacity and all-script parse count without
+engines, profiles, stage creation or test execution. The native collector reuses
+run_all_tests.source_refs/execute_phase and the existing Guard, owned_outer,
+diagnostic, artifact, PID, marker and cleanup gates. It stops at the first failure;
+Runner owns repair/validation sequencing and independent review.
+
+Worker checks: Python AST syntax, JSON/source-marker consistency, allowed-path
+inspection, unchanged pre-existing marker/policy records, and git diff whitespace.
+Native import, GDScript parse and all seven suites remain **unexecuted** by worker.
+Worker reinspection on 2026-10-13 confirmed the existing submitted implementation
+and repeated Python AST, specification digest, exact new marker/policy source
+hashes, unchanged existing marker/policy records, and `git diff --check`.
+Prepare-only exited 0: seven suites, 1,311 source files / 67,287,056 bytes,
+308 parse paths, nine future native phases, 381,859,856 conservative required
+bytes and 1,773,187,072 available bytes. Engines and stages were both zero;
+actual checks were null and formal acceptance was false. Capacity is a preview
+at that instant, not a reservation or native result.
+An initial shell here-document temporary-file attempt was denied with
+`operation not permitted`; normal allowed-path patch edits worked. No isolation
+rule or permission was relaxed.
+
+P18-C-1 through P18-C-3 are implementation submissions, not accepted results.
+P18-C-4 awaits Runner native local/affected evidence, separate Opus review,
+integration and final affected validation. The original P18-01 unit remains
+in_progress: ordinary Japanese UI rendering/equality, approved production values,
+all-seven recruitment, final full required roster and applicable Windows final
+acceptance remain outstanding. No git writes, other agents or Runner controls
+were used by worker.
diff --git a/scripts/relationship/original_relationship_state.gd b/scripts/relationship/original_relationship_state.gd
new file mode 100644
index 0000000..8acb3b6
--- /dev/null
+++ b/scripts/relationship/original_relationship_state.gd
@@ -0,0 +1,38 @@
+class_name OriginalRelationshipState
+extends RefCounted
+
+## Explicit facts only. Numeric values are not production initialization approval.
+## No update, attack, reduction, threshold or route policy is defined here.
+const FIELDS := ["subject_id", "protagonist_id", "rival_id", "affection", "lust", "netorare", "shield_current", "shield_max"]
+var _payload: Dictionary = {}
+
+
+static func from_snapshot(value: Variant) -> OriginalRelationshipState:
+	if not value is Dictionary or value.size() != FIELDS.size():
+		return null
+	for field: String in FIELDS:
+		if not value.has(field):
+			return null
+	for field: String in ["subject_id", "protagonist_id", "rival_id"]:
+		if not (value[field] is String or value[field] is StringName) or String(value[field]).is_empty():
+			return null
+	if value["subject_id"] == value["protagonist_id"] or value["subject_id"] == value["rival_id"] or value["protagonist_id"] == value["rival_id"]:
+		return null
+	for field: String in ["affection", "lust", "netorare", "shield_current", "shield_max"]:
+		if not (value[field] is int or value[field] is float):
+			return null
+		if value[field] is float and not is_finite(value[field]):
+			return null
+	if value["shield_max"] != value["affection"] or value["shield_current"] < 0 or value["shield_current"] > value["shield_max"]:
+		return null
+	var state := OriginalRelationshipState.new()
+	state._payload = value.duplicate(true)
+	return state
+
+
+func create_snapshot() -> Dictionary:
+	return _payload.duplicate(true)
+
+
+func subject_id() -> StringName:
+	return StringName(_payload.get("subject_id", ""))
diff --git a/scripts/relationship/original_relationship_state.gd.uid b/scripts/relationship/original_relationship_state.gd.uid
new file mode 100644
index 0000000..fde971a
--- /dev/null
+++ b/scripts/relationship/original_relationship_state.gd.uid
@@ -0,0 +1 @@
+uid://cqxwpbkgjtnsa
diff --git a/scripts/relationship/relationship_service.gd b/scripts/relationship/relationship_service.gd
index 1d1e093..35d4670 100644
--- a/scripts/relationship/relationship_service.gd
+++ b/scripts/relationship/relationship_service.gd
@@ -9,8 +9,9 @@ signal route_lock_changed(relationship_id: StringName, old_lock: int, new_lock:
 
 const RelationshipStateType = preload("res://scripts/relationship/relationship_state.gd")
 const CommandResultType = preload("res://scripts/core/command_result.gd")
+const OriginalStateType = preload("res://scripts/relationship/original_relationship_state.gd")
 
-const SNAPSHOT_VERSION := 1
+const SNAPSHOT_VERSION := 2
 const DAILY_AUTOMATIC_DELTA_LIMIT := 10
 const GATED_THRESHOLDS: Array[int] = [50, 80]
 const STAGE_THRESHOLDS: Array[int] = [20, 50, 80, 100]
@@ -22,6 +23,46 @@ var _pair_index: Dictionary = {}
 var _threshold_candidates: Array[Dictionary] = []
 var _next_candidate_sequence := 1
 var _candidate_callback := Callable()
+var _original_records: Dictionary = {}
+var _original_identity_validator := Callable()
+var _legacy_raw: Dictionary = {}
+var _legacy_baselines: Dictionary = {}
+var _container_raw: Dictionary = {}
+
+
+func configure_original_identity_validator(callback: Callable) -> RelationshipService:
+	_original_identity_validator = callback
+	return self
+
+
+func register_original_relationship(payload: Variant) -> CommandResult:
+	var state := OriginalStateType.from_snapshot(payload)
+	if state == null:
+		return _invalid("Original relationship requires complete explicit facts.")
+	if not _original_identity_validator.is_valid() or not bool(_original_identity_validator.call(state.create_snapshot())):
+		return _invalid("Original relationship identities are not registered.")
+	if _original_records.has(state.subject_id()):
+		return _duplicate("Original relationship subject", state.subject_id())
+	_original_records[state.subject_id()] = state.create_snapshot()
+	last_error = ""
+	return _success({&"subject_id": state.subject_id()})
+
+
+func get_original_relationship(subject_id: StringName) -> Dictionary:
+	if _original_records.has(subject_id):
+		var result: Dictionary = _original_records[subject_id].duplicate(true)
+		result[&"configured"] = true
+		return result
+	return {&"configured": false, &"subject_id": subject_id,
+		&"protagonist_id": null, &"rival_id": null, &"affection": null,
+		&"lust": null, &"netorare": null, &"shield_current": null, &"shield_max": null}
+
+
+func validate_original_identities() -> bool:
+	for payload: Dictionary in _original_records.values():
+		if not _original_identity_validator.is_valid() or not bool(_original_identity_validator.call(payload.duplicate(true))):
+			return false
+	return true
 
 
 func configure_candidate_callback(callback: Callable = Callable()) -> RelationshipService:
@@ -329,6 +370,8 @@ func consume_threshold_candidate(candidate_id: StringName) -> Dictionary:
 
 func validate_invariants() -> Dictionary:
 	var errors: Array[String] = []
+	if not validate_original_identities():
+		errors.append("Original relationship identity reference is invalid.")
 	var seen_pairs: Dictionary = {}
 	for relationship_id: StringName in _sorted_name_keys(_relationships):
 		var state := get_relationship(relationship_id)
@@ -347,22 +390,92 @@ func validate_invariants() -> Dictionary:
 func create_snapshot() -> Dictionary:
 	var relationships: Array[Dictionary] = []
 	for state: RelationshipState in get_relationships():
-		relationships.append(state.create_snapshot())
+		var current := state.create_snapshot()
+		var original: Dictionary = _legacy_baselines.get(state.relationship_id, {})
+		var raw: Dictionary = {}
+		for entry: Dictionary in _legacy_raw.get(&"relationships", []):
+			if StringName(_value(entry, &"relationship_id", "")) == state.relationship_id:
+				raw = entry
+				break
+		relationships.append(_merge_legacy_changes(raw, original, current) if not original.is_empty() else current)
 	var candidates := _threshold_candidates.duplicate(true)
 	candidates.sort_custom(
 		func(a: Dictionary, b: Dictionary) -> bool:
 			return String(a.get(&"candidate_id", "")) < String(b.get(&"candidate_id", ""))
 	)
-	return {
-		&"version": SNAPSHOT_VERSION,
-		&"relationships": relationships,
-		&"threshold_candidates": candidates,
-		&"next_candidate_sequence": _next_candidate_sequence,
-	}
+	var legacy := _legacy_raw.duplicate(true)
+	legacy[&"version"] = 1
+	# Preserve input collection order as well as every untouched raw field.
+	if _legacy_raw.has(&"relationships"):
+		var ordered: Array[Dictionary] = []
+		for raw: Dictionary in _legacy_raw[&"relationships"]:
+			for entry: Dictionary in relationships:
+				if _value(entry, &"relationship_id", "") == _value(raw, &"relationship_id", ""):
+					ordered.append(entry)
+		for entry: Dictionary in relationships:
+			if not ordered.has(entry):
+				ordered.append(entry)
+		relationships = ordered
+	if legacy.get(&"relationships") != relationships:
+		legacy[&"relationships"] = relationships
+	var current_candidates := _threshold_candidates.duplicate(true) if not _legacy_raw.is_empty() else candidates
+	if legacy.get(&"threshold_candidates") != current_candidates:
+		legacy[&"threshold_candidates"] = current_candidates
+	legacy[&"next_candidate_sequence"] = _next_candidate_sequence
+	var result := _container_raw.duplicate(true)
+	result[&"version"] = SNAPSHOT_VERSION
+	result[&"legacy"] = legacy
+	# Compatibility projection for existing snapshot consumers; the nested v1
+	# record remains lossless, including extension names reserved by v2.
+	if result.get(&"relationships") != relationships:
+		result[&"relationships"] = relationships.duplicate(true)
+	var originals: Array[Dictionary] = []
+	for payload: Dictionary in _original_records.values():
+		originals.append(payload.duplicate(true))
+	if result.get(&"original_relationships") != originals:
+		result[&"original_relationships"] = originals
+	return result
+
+
+static func _merge_legacy_changes(raw: Dictionary, baseline: Dictionary, current: Dictionary) -> Dictionary:
+	var result := raw.duplicate(true)
+	for key: Variant in baseline:
+		if not current.has(key):
+			result.erase(key)
+	for key: Variant in current:
+		if baseline.has(key) and current[key] == baseline[key]:
+			continue
+		if current[key] is Dictionary and baseline.get(key) is Dictionary and result.get(key) is Dictionary:
+			result[key] = _merge_legacy_changes(result[key], baseline[key], current[key])
+		else:
+			result[key] = current[key]
+	return result
 
 
 func restore_snapshot(snapshot: Dictionary) -> bool:
-	var parsed := _parse_snapshot(snapshot)
+	var version: Variant = _value(snapshot, &"version", null)
+	if not version is int or version not in [1, SNAPSHOT_VERSION]:
+		last_error = "Unsupported Relationship snapshot version."
+		return false
+	var legacy: Variant = snapshot if version == 1 else _value(snapshot, &"legacy", null)
+	var originals: Variant = [] if version == 1 else _value(snapshot, &"original_relationships", null)
+	if not legacy is Dictionary or not originals is Array:
+		last_error = "Malformed Relationship snapshot container."
+		return false
+	if version == SNAPSHOT_VERSION and _value(snapshot, &"relationships", null) != _value(legacy, &"relationships", null):
+		last_error = "Legacy compatibility projection disagrees with its source."
+		return false
+	var original_records: Dictionary = {}
+	for raw: Variant in originals:
+		var state := OriginalStateType.from_snapshot(raw)
+		if state == null or original_records.has(state.subject_id()):
+			last_error = "Invalid or duplicate original relationship."
+			return false
+		if not _original_identity_validator.is_valid() or not bool(_original_identity_validator.call(state.create_snapshot())):
+			last_error = "Invalid original relationship identity reference."
+			return false
+		original_records[state.subject_id()] = state.create_snapshot()
+	var parsed := _parse_snapshot(legacy)
 	if not bool(parsed.get(&"ok", false)):
 		last_error = String(parsed.get(&"error", "Invalid Relationship snapshot."))
 		return false
@@ -370,12 +483,18 @@ func restore_snapshot(snapshot: Dictionary) -> bool:
 	_pair_index = parsed[&"pair_index"]
 	_threshold_candidates = parsed[&"threshold_candidates"]
 	_next_candidate_sequence = int(parsed[&"next_candidate_sequence"])
+	_original_records = original_records
+	_legacy_raw = legacy.duplicate(true)
+	_container_raw = snapshot.duplicate(true) if version == SNAPSHOT_VERSION else {}
+	_legacy_baselines = {}
+	for state: RelationshipState in get_relationships():
+		_legacy_baselines[state.relationship_id] = state.create_snapshot()
 	last_error = ""
 	return true
 
 
 func _parse_snapshot(snapshot: Dictionary) -> Dictionary:
-	if int(_value(snapshot, &"version", 0)) != SNAPSHOT_VERSION:
+	if not _value(snapshot, &"version", null) is int or _value(snapshot, &"version", null) != 1:
 		return {&"ok": false, &"error": "Unsupported Relationship snapshot version."}
 	var raw_relationships: Variant = _value(snapshot, &"relationships", null)
 	var raw_candidates: Variant = _value(snapshot, &"threshold_candidates", null)
@@ -384,7 +503,7 @@ func _parse_snapshot(snapshot: Dictionary) -> Dictionary:
 	var relationships: Dictionary = {}
 	var pair_index: Dictionary = {}
 	for raw_state: Variant in raw_relationships:
-		if not raw_state is Dictionary:
+		if not raw_state is Dictionary or not _legacy_types_valid(raw_state):
 			return {&"ok": false, &"error": "Relationship snapshot entry is malformed."}
 		var state := RelationshipStateType.from_snapshot(raw_state)
 		if not state.is_valid() or relationships.has(state.relationship_id):
@@ -398,6 +517,9 @@ func _parse_snapshot(snapshot: Dictionary) -> Dictionary:
 	for raw_candidate: Variant in raw_candidates:
 		if not raw_candidate is Dictionary:
 			return {&"ok": false, &"error": "Threshold candidate is malformed."}
+		for key: String in ["candidate_id", "relationship_id"]:
+			if not (raw_candidate.get(key) is String or raw_candidate.get(key) is StringName):
+				return {&"ok": false, &"error": "Threshold candidate identity type is invalid."}
 		var candidate: Dictionary = raw_candidate.duplicate(true)
 		var candidate_id := StringName(candidate.get(&"candidate_id", candidate.get("candidate_id", "")))
 		var relationship_id := StringName(candidate.get(&"relationship_id", candidate.get("relationship_id", "")))
@@ -405,6 +527,8 @@ func _parse_snapshot(snapshot: Dictionary) -> Dictionary:
 			return {&"ok": false, &"error": "Threshold candidate reference is invalid."}
 		candidate_ids[candidate_id] = true
 		candidates.append(candidate)
+	if not _value(snapshot, &"next_candidate_sequence", null) is int:
+		return {&"ok": false, &"error": "Relationship candidate sequence type is invalid."}
 	var next_sequence := int(_value(snapshot, &"next_candidate_sequence", 0))
 	if next_sequence < 1:
 		return {&"ok": false, &"error": "Relationship candidate sequence is invalid."}
@@ -417,6 +541,44 @@ func _parse_snapshot(snapshot: Dictionary) -> Dictionary:
 	}
 
 
+static func _legacy_types_valid(raw: Dictionary) -> bool:
+	for key: String in ["relationship_id", "actor_a_id", "actor_b_id"]:
+		if not (raw.get(key) is String or raw.get(key) is StringName):
+			return false
+	for key: String in ["shield_max", "shield_current", "last_event_at", "daily_attack_count", "attack_day", "metric_delta_day"]:
+		if raw.has(key) and not raw[key] is int:
+			return false
+	for key: String in ["metrics", "action_counts", "daily_metric_deltas", "flags", "crossed_thresholds"]:
+		if raw.has(key) and not raw[key] is Dictionary:
+			return false
+	for key: String in ["trust", "respect", "affection", "fear", "dependence", "affinity", "obligation"]:
+		var metrics: Dictionary = raw.get("metrics", raw)
+		if metrics.has(key) and not metrics[key] is int:
+			return false
+	for key: String in ["action_counts", "daily_metric_deltas"]:
+		for value: Variant in raw.get(key, {}).values():
+			if not value is int:
+				return false
+	for key: String in ["action_counts", "flags"]:
+		for identity: Variant in raw.get(key, {}):
+			if not (identity is String or identity is StringName):
+				return false
+	for value: Variant in raw.get("flags", {}).values():
+		if not value is bool:
+			return false
+	for value: Variant in raw.get("crossed_thresholds", {}).values():
+		if not value is Array:
+			return false
+		for threshold: Variant in value:
+			if not threshold is int:
+				return false
+	if raw.has("route_id") and not (raw["route_id"] is String or raw["route_id"] is StringName):
+		return false
+	if raw.has("route_lock") and not (raw["route_lock"] is int or raw["route_lock"] is String or raw["route_lock"] is StringName):
+		return false
+	return true
+
+
 func _register_threshold_candidate(
 	state: RelationshipState,
 	metric_id: StringName,
diff --git a/tests/s4/test_original_relationship_model.gd b/tests/s4/test_original_relationship_model.gd
new file mode 100644
index 0000000..d2a2c81
--- /dev/null
+++ b/tests/s4/test_original_relationship_model.gd
@@ -0,0 +1,110 @@
+extends SceneTree
+
+const Model = preload("res://scripts/relationship/original_relationship_state.gd")
+const Service = preload("res://scripts/relationship/relationship_service.gd")
+var _checks := 0
+var _failures := 0
+
+
+func _initialize() -> void:
+	call_deferred("_run")
+
+
+func _expect(value: bool, message: String) -> void:
+	_checks += 1
+	if not value:
+		_failures += 1
+		push_error(message)
+
+
+static func fixture() -> Dictionary:
+	# Validation fixtures, never approved initialization or range limits.
+	return {"subject_id": "heroine_anri", "protagonist_id": "player", "rival_id": "rival_rai",
+		"affection": 142.5, "lust": 23.25, "netorare": 11, "shield_current": 90.5, "shield_max": 142.5}
+
+
+func _service() -> RelationshipService:
+	return Service.new().configure_original_identity_validator(
+		func(p: Dictionary) -> bool:
+			return p["subject_id"] == "heroine_anri" and p["protagonist_id"] == "player" and p["rival_id"] == "rival_rai"
+	)
+
+
+func _run() -> void:
+	var service := _service()
+	var before := var_to_bytes(service.create_snapshot())
+	var unset := service.get_original_relationship(&"heroine_anri")
+	_expect(not unset[&"configured"] and unset[&"affection"] == null, "missing record is unset")
+	unset[&"affection"] = 999
+	_expect(var_to_bytes(service.create_snapshot()) == before, "reads own their dictionaries")
+	var payload := fixture()
+	var payload_bytes := var_to_bytes(payload)
+	_expect(service.register_original_relationship(payload).is_success(), "complete directional fixture registers")
+	payload["affection"] = 0
+	_expect(service.get_original_relationship(&"heroine_anri")["affection"] == 142.5, "caller cannot mutate stored facts")
+	_expect(not service.register_original_relationship(fixture()).is_success(), "duplicate subject rejected")
+	var saved := service.create_snapshot()
+	var restored := _service()
+	_expect(restored.restore_snapshot(saved), "new-only v2 restores")
+	_expect(var_to_bytes(restored.create_snapshot()) == var_to_bytes(saved), "new-only exact bytes")
+	_expect(var_to_bytes(fixture()) == payload_bytes, "fixture is explicit and stable")
+	for field: String in Model.FIELDS:
+		var missing := fixture()
+		missing.erase(field)
+		_expect(Model.from_snapshot(missing) == null, "missing required field " + field)
+	for value: Variant in [null, true, "12", INF, NAN, {}, []]:
+		var wrong := fixture()
+		wrong["lust"] = value
+		_expect(Model.from_snapshot(wrong) == null, "wrong/nonfinite numeric value rejected")
+	for patch: Dictionary in [{"shield_max": 1}, {"shield_current": -1}, {"shield_current": 143}, {"rival_id": "player"}, {"subject_id": "player"}]:
+		var wrong := fixture()
+		wrong.merge(patch, true)
+		_expect(Model.from_snapshot(wrong) == null, "value/identity invariant rejected")
+	var zero := fixture()
+	for field: String in ["affection", "lust", "netorare", "shield_current", "shield_max"]:
+		zero[field] = 0
+	_expect(Model.from_snapshot(zero) != null, "explicit zero is configured")
+	var legacy := {"version": 1, "relationships": [{"relationship_id": "old", "actor_a_id": "player", "actor_b_id": "heroine_anri",
+		"metrics": {"affinity": 117, "dependence": 29, "extension": {"opaque": [3, "keep"]}}, "extra": ["raw", 2.5]}],
+		"threshold_candidates": [], "next_candidate_sequence": 1, "extension": {"version": 70}}
+	var legacy_bytes := var_to_bytes(legacy)
+	var migrated := _service()
+	_expect(migrated.restore_snapshot(legacy), "legacy aliases still usable")
+	_expect(migrated.get_relationship(&"old").get_metric(&"affection") == 100, "legacy normalization behavior retained")
+	_expect(not migrated.get_original_relationship(&"heroine_anri")[&"configured"], "legacy never configures original facts")
+	_expect(var_to_bytes(migrated.create_snapshot()[&"legacy"]) == legacy_bytes, "all raw legacy values and extensions preserved")
+	_expect(var_to_bytes(legacy) == legacy_bytes, "legacy input bytes untouched")
+	_expect(migrated.register_original_relationship(fixture()).is_success(), "mixed state registers independently")
+	var mixed := migrated.create_snapshot()
+	_expect(restored.restore_snapshot(mixed), "mixed snapshot restores")
+	_expect(var_to_bytes(restored.create_snapshot()) == var_to_bytes(mixed), "mixed exact bytes")
+	_expect(migrated.apply_value_change(&"old", &"trust", 3, 0).is_success(), "legacy changes still apply")
+	var changed: Dictionary = migrated.create_snapshot()[&"legacy"]
+	_expect(changed["relationships"][0]["metrics"]["affinity"] == 117 and changed["relationships"][0]["metrics"]["trust"] == 3, "changed metric preserves raw alias")
+	for version: Variant in [0, 3, "2", 2.0, true]:
+		var bad := mixed.duplicate(true)
+		bad[&"version"] = version
+		_rejected(restored, bad)
+	var duplicate := mixed.duplicate(true)
+	duplicate[&"original_relationships"].append(fixture())
+	_rejected(restored, duplicate)
+	for patch: Dictionary in [{"rival_id": "unknown"}, {"protagonist_id": "unknown"}, {"lust": false}, {"shield_max": 10}]:
+		var bad := mixed.duplicate(true)
+		bad[&"original_relationships"][0].merge(patch, true)
+		_rejected(restored, bad)
+	var bad_legacy := legacy.duplicate(true)
+	bad_legacy["relationships"][0]["metrics"]["affinity"] = "117"
+	_rejected(restored, bad_legacy)
+	bad_legacy = legacy.duplicate(true)
+	bad_legacy["relationships"].append(bad_legacy["relationships"][0].duplicate(true))
+	_rejected(restored, bad_legacy)
+	print("Original relationship model: %d checks, %d failures" % [_checks, _failures])
+	quit(_failures)
+
+
+func _rejected(service: RelationshipService, payload: Dictionary) -> void:
+	var before := var_to_bytes(service.create_snapshot())
+	var input := var_to_bytes(payload)
+	_expect(not service.restore_snapshot(payload), "corrupt snapshot rejected")
+	_expect(var_to_bytes(service.create_snapshot()) == before, "rejection preserves prior state")
+	_expect(var_to_bytes(payload) == input, "rejection preserves input bytes")
diff --git a/tests/s4/test_original_relationship_model.gd.uid b/tests/s4/test_original_relationship_model.gd.uid
new file mode 100644
index 0000000..0b2111c
--- /dev/null
+++ b/tests/s4/test_original_relationship_model.gd.uid
@@ -0,0 +1 @@
+uid://cqxwpbkgjtnsb
diff --git a/tests/s4/test_original_relationship_runtime.gd b/tests/s4/test_original_relationship_runtime.gd
new file mode 100644
index 0000000..f2aa656
--- /dev/null
+++ b/tests/s4/test_original_relationship_runtime.gd
@@ -0,0 +1,78 @@
+extends SceneTree
+
+const Fixtures = preload("res://tests/s4/test_original_relationship_model.gd")
+var _checks := 0
+var _failures := 0
+
+
+func _initialize() -> void:
+	call_deferred("_run")
+
+
+func _expect(value: bool, message: String) -> void:
+	_checks += 1
+	if not value:
+		_failures += 1
+		push_error(message)
+
+
+func _run() -> void:
+	var clock = load("res://autoload/game_clock.gd").new()
+	var state = load("res://autoload/game_state.gd").new()
+	var runtime = load("res://autoload/simulation_runtime.gd").new()
+	clock.reset(1, 6, 0)
+	state.reset()
+	_expect(runtime.initialize(clock, state, 18001)[&"valid"], "Runtime initialized")
+	clock.set_paused(true)
+	var fixture := Fixtures.fixture()
+	_expect(not runtime.relationship_service.register_original_relationship(fixture).is_success(), "unhired subject rejected by service boundary")
+	_expect(runtime.submit_command(&"hire_staff_candidate", {&"candidate_id": &"heroine_anri"}).is_success(), "actual approved Anri hire")
+	var read_before := var_to_bytes(runtime.create_snapshot())
+	var report: Dictionary = runtime.get_staff_management_report()
+	var found := false
+	for row: Dictionary in report[&"staff"]:
+		if row[&"staff_id"] == &"heroine_anri":
+			found = true
+			_expect(not row[&"original_relationship"][&"configured"] and row[&"original_relationship"][&"affection"] == null, "actual report exposes unset")
+	_expect(found, "hired staff appears in actual report")
+	_expect(var_to_bytes(runtime.create_snapshot()) == read_before, "unset report read has no mutation")
+	var old_events: Array = runtime.domain_events.create_snapshot()["recent_events"]
+	_expect(runtime.submit_command(&"register_original_relationship", fixture).is_success(), "registered Runtime command stores explicit fixture")
+	var new_events: Array = runtime.domain_events.create_snapshot()["recent_events"]
+	_expect(new_events.size() == old_events.size() + 1 and new_events[-1][&"event_type"] == "COMMAND_COMPLETED", "only existing command completion event is emitted")
+	_expect(runtime.relationship_service.create_relationship(&"legacy", &"heroine_anri", &"player", {&"affinity": 44}).is_success(), "legacy service remains usable")
+	var saved: Dictionary = runtime.create_snapshot()
+	var input := var_to_bytes(saved)
+	_expect(runtime.restore_snapshot(saved), "mixed Runtime snapshot restores")
+	_expect(var_to_bytes(runtime.create_snapshot()) == input, "Runtime snapshot exact round trip")
+	_expect(var_to_bytes(saved) == input, "restore preserves caller bytes")
+	read_before = var_to_bytes(runtime.create_snapshot())
+	report = runtime.get_staff_management_report()
+	for row: Dictionary in report[&"staff"]:
+		if row[&"staff_id"] == &"heroine_anri":
+			var original: Dictionary = row[&"original_relationship"]
+			_expect(original[&"configured"] and original["affection"] == 142.5 and original["shield_max"] == 142.5, "restored report equals stored original values")
+			original["affection"] = -99
+	_expect(var_to_bytes(runtime.create_snapshot()) == read_before, "configured report owns projection containers")
+	for patch: Dictionary in [{"subject_id": "missing"}, {"protagonist_id": "rival_rai"}, {"rival_id": "missing"}, {"shield_current": 999}, {"lust": "bad"}]:
+		var corrupt := saved.duplicate(true)
+		corrupt[&"systems"][&"runtime"][&"relationships"][&"original_relationships"][0].merge(patch, true)
+		var bad_bytes := var_to_bytes(corrupt)
+		var service_before: Variant = runtime.relationship_service
+		_expect(not runtime.restore_snapshot(corrupt), "bad original Runtime restore rejected")
+		_expect(runtime.relationship_service == service_before, "failed restore preserves service identity")
+		_expect(var_to_bytes(runtime.create_snapshot()) == read_before, "failed restore preserves whole Runtime")
+		_expect(var_to_bytes(corrupt) == bad_bytes, "failed restore preserves input")
+	var v1 := saved.duplicate(true)
+	v1[&"systems"][&"runtime"][&"relationships"] = saved[&"systems"][&"runtime"][&"relationships"][&"legacy"].duplicate(true)
+	_expect(runtime.restore_snapshot(v1), "Runtime accepts genuine v1 relationship payload")
+	_expect(not runtime.relationship_service.get_original_relationship(&"heroine_anri")[&"configured"], "v1 restore does not map legacy affection")
+	var invalid := fixture.duplicate(true)
+	invalid["rival_id"] = "missing"
+	_expect(not runtime.relationship_service.register_original_relationship(invalid).is_success(), "restore rebind keeps identity validator")
+	_expect(runtime.relationship_service.register_original_relationship(fixture).is_success(), "restored service accepts correct identities")
+	runtime.free()
+	clock.free()
+	state.free()
+	print("Original relationship runtime: %d checks, %d failures" % [_checks, _failures])
+	quit(_failures)
diff --git a/tests/s4/test_original_relationship_runtime.gd.uid b/tests/s4/test_original_relationship_runtime.gd.uid
new file mode 100644
index 0000000..039532f
--- /dev/null
+++ b/tests/s4/test_original_relationship_runtime.gd.uid
@@ -0,0 +1 @@
+uid://cqxwpbkgjtnsc
diff --git a/tools/regression/suite-policy.json b/tools/regression/suite-policy.json
index dd284ae..63d34d8 100644
--- a/tools/regression/suite-policy.json
+++ b/tools/regression/suite-policy.json
@@ -1,6 +1,20 @@
 {
   "schema_version": 1,
   "suite_policies": {
+    "tests/s4/test_original_relationship_model.gd": {
+      "source_sha256": "ad509f5fb67ab91e1d1d99a08af51e4695e411b9a2541ea63ee22b1555cb0924",
+      "ordinary_cleanup_prepared": false,
+      "ordinary_control_labels": [],
+      "old_bounded_teardown": false,
+      "new_audio_QA": false
+    },
+    "tests/s4/test_original_relationship_runtime.gd": {
+      "source_sha256": "374f3d31a65d2f2b62dfef29721c8c838575b856f4fa5a0bca31c6ba4c7e09dd",
+      "ordinary_cleanup_prepared": false,
+      "ordinary_control_labels": [],
+      "old_bounded_teardown": false,
+      "new_audio_QA": false
+    },
     "tests/ui/test_selection_departure.gd": {
       "source_sha256": "3137f36f547514f25ce6ac775fa7a5141d12f83ca4b95da0be45fecfafe9d9b4",
       "ordinary_cleanup_prepared": true,
diff --git a/tools/run_p18_relationship_tests.py b/tools/run_p18_relationship_tests.py
new file mode 100644
index 0000000..93c5d2d
--- /dev/null
+++ b/tools/run_p18_relationship_tests.py
@@ -0,0 +1,149 @@
+#!/usr/bin/env python3
+"""Runner-owned narrow P18 collection using the unchanged guarded phase protocol."""
+import argparse
+import hashlib
+import json
+import os
+from pathlib import Path
+import shutil
+import sys
+import uuid
+
+sys.dont_write_bytecode = True
+import run_all_tests as shared
+
+ROSTER = [
+    'tests/s4/test_original_relationship_model.gd',
+    'tests/s4/test_original_relationship_runtime.gd',
+    'tests/s4/test_relationship_event_service.gd',
+    'tests/s4/test_runtime_relationship_events.gd',
+    'tests/s6/test_runtime_snapshot_serialization.gd',
+    'tests/s6/test_runtime_save_lifecycle.gd',
+    'tests/ui/test_staff_management.gd',
+]
+
+
+def main(argv=None):
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('--project-root', type=Path, default=Path(__file__).resolve().parent.parent)
+    parser.add_argument('--output', type=Path)
+    parser.add_argument('--godot', default='godot')
+    parser.add_argument('--timeout', type=int, default=1200)
+    parser.add_argument('--prepare-only', action='store_true')
+    args = parser.parse_args(argv)
+    root = args.project_root.resolve()
+    out = (args.output or root / 'artifacts' / ('p18-relationship-' + uuid.uuid4().hex)).resolve()
+    shared.require(args.timeout > 0, 'positive timeout')
+    refs = shared.source_refs(root)
+    # Refuse mixed collector/support checkouts; all actual Python source is pinned.
+    for name in ['tools/run_all_tests.py', 'tools/run_p18_relationship_tests.py', 'tools/strict_test_markers.py']:
+        shared.require(refs[name]['sha256'] == shared.sha(shared.HERE / Path(name).name), 'actual collector source ' + name)
+    for file in shared.SUPPORT.iterdir():
+        if file.is_file():
+            shared.require(refs['tools/regression/' + file.name]['sha256'] == shared.sha(file), 'actual support source ' + file.name)
+    shared.require(all(name in refs for name in ROSTER), 'complete narrow roster')
+    shared.require(set(ROSTER).issubset(shared.roster(root)), 'normal discovery includes narrow roster')
+    markers = shared.module('p18_exact_markers', shared.HERE / 'strict_test_markers.py')
+    contract_path = root / 'docs/plans/original-completion-2026-10-02/execution/completion_marker_contracts.json'
+    contract_sha = shared.sha(contract_path)
+    contracts = markers.load_contracts(contract_path)
+    shared.require(all(name in contracts for name in ROSTER), 'complete marker roster')
+    policy = shared.read(shared.SUPPORT / 'suite-policy.json')
+    shared.policy_coverage(ROSTER, refs, policy)
+    for test in ROSTER:
+        shared.phase_policy(test, Path(refs[test]['path']), policy['suite_policies'])
+    for test in ROSTER[:2]:
+        shared.require(contracts[test]['source_sha256_at_schema_audit'] == refs[test]['sha256'], 'new strict source-hashed marker')
+    parse_paths = ['res://' + name for name in sorted(refs) if name.endswith('.gd')]
+    source_bytes = sum(pin['bytes'] for pin in refs.values())
+    ancestor = out.parent
+    while not ancestor.exists():
+        ancestor = ancestor.parent
+    free = shutil.disk_usage(ancestor).free
+    needed = source_bytes + shared.MIN_SPACE
+    preview = dict(roster=ROSTER, source_files=len(refs), source_bytes=source_bytes,
+                   free_bytes=free, conservative_required_bytes=needed, capacity_available=free >= needed,
+                   parse_paths=len(parse_paths), future_native_phases=len(ROSTER) + 2,
+                   actual_checks=None, engines=0, stages=0, formal_acceptance=False)
+    if args.prepare_only:
+        print(json.dumps(preview, ensure_ascii=False))
+        return 0
+    shared.require(free >= needed, 'fresh source and phase disk admission')
+    outer = shared.module('p18_owned_outer', shared.SUPPORT / 'owned_outer.py')
+    shared.require(not outer.native.helper['live_engines'](), 'another Godot owns CPU')
+    engine = shutil.which(args.godot) if not Path(args.godot).is_absolute() else args.godot
+    shared.require(engine and Path(engine).is_file(), 'native launcher exists')
+    engine = str(Path(engine).resolve())
+    out.mkdir(parents=True, exist_ok=False)
+    stage = out / 'stage'
+    stage.mkdir()
+    (out / 'starters').mkdir()
+    (out / 'bootstrap').mkdir()
+    for name, pin in shared.read(shared.SUPPORT / 'bootstrap-scripts.json').items():
+        data = pin['text'].encode('utf-8')
+        shared.require(hashlib.sha256(data).hexdigest() == pin['sha256'], 'unchanged external bootstrap bytes')
+        (out / 'bootstrap' / name).write_bytes(data)
+    protected = shared.default_player(root)
+    expected = {name: {'bytes': pin['bytes'], 'sha256': pin['sha256']} for name, pin in refs.items()}
+    selected = {'root_before': refs, 'map': {name: pin['sha256'] for name, pin in refs.items()}, 'timeout': args.timeout}
+    for name, pin in refs.items():
+        target = stage / name
+        target.parent.mkdir(parents=True, exist_ok=True)
+        shared.copy_source(Path(pin['path']), target)
+    shared.require(shared.inventory(stage, stage=True) == expected, 'complete private source copy')
+    public = (stage / 'project.godot').read_bytes()
+    shared.write(out / 'parse-paths.json', parse_paths)
+    run_id = uuid.uuid4().hex
+    shared.write(out / 'runner-input.json', dict(protocol='guarded-p18-v1', run_id=run_id,
+        owner_runner_pid=os.getpid(), project_root=str(root), stage=str(stage), roster=ROSTER,
+        selected_source_map=selected['map'], marker_contract_sha256=contract_sha,
+        runner_sha256=shared.sha(Path(__file__)), shared_runner_sha256=shared.sha(shared.HERE / 'run_all_tests.py'),
+        marker_module_sha256=shared.sha(shared.HERE / 'strict_test_markers.py'),
+        engine=engine, engine_sha256=shared.sha(engine), default_player_before=protected,
+        formal_acceptance=False, original_unit_complete=False))
+    shared.write(out / 'source-start.json', refs)
+    diagnostics = shared.module('p18_diagnostics', shared.SUPPORT / 'diagnostic_gate.py')
+    owners = shared.module('p18_owners', shared.SUPPORT / 'ordinary_proof_gate.py')
+    audio = shared.module('p18_audio', shared.SUPPORT / 'audio_evidence_gate.py')
+    phases, rows, previous = [], [], {}
+    error = None
+    try:
+        for phase, test in [('import', None), ('parse', None)] + [(str(i).zfill(3), name) for i, name in enumerate(ROSTER)]:
+            shared.require(shared.sha(contract_path) == contract_sha, 'marker contract unchanged')
+            row = shared.execute_phase(engine, stage, out, phase, test, selected, expected, previous,
+                policy, contracts, parse_paths, public, protected, root, outer, markers, diagnostics, owners, audio)
+            phases.append(row)
+            if test:
+                row.update(sequence=len(rows), godot=engine)
+                rows.append(row)
+                (out / 'all-tests.json').write_text(json.dumps(rows, ensure_ascii=False, indent=2) + '\n')
+                print(('PASS ' if row['passed'] else 'FAIL ') + test, flush=True)
+            shared.require(row['passed'], 'first failed phase stops without retry: ' + phase)
+    except BaseException as caught:
+        error = type(caught).__name__ + ': ' + str(caught)
+    finally:
+        cleanup, cleanup_errors = outer.finish_captured(outer.OWNED)
+    guard_errors = []
+    try:
+        shared.require(shared.source_refs(root) == refs, 'whole source unchanged')
+        shared.require(shared.sha(contract_path) == contract_sha, 'marker contract unchanged at end')
+        shared.require(shared.default_player(root) == protected, 'default profile untouched')
+        shared.require(shared.inventory(stage, stage=True) == dict(expected, **previous), 'whole stage exact')
+    except BaseException as caught:
+        guard_errors.append(type(caught).__name__ + ': ' + str(caught))
+    ended = bool(outer.OWNED) and all(row['engine_ended'] is True for row in cleanup)
+    passed = error is None and not cleanup_errors and not guard_errors and ended and len(phases) == len(ROSTER) + 2 and all(row['passed'] for row in phases)
+    context = shared.totals(rows, ROSTER)
+    shared.write(out / 'runner-ended.json', dict(context, protocol='guarded-p18-v1', run_id=run_id,
+        owner_runner_pid=os.getpid(), passed=passed, engine_ended=ended,
+        actual_captured_PIDs=[process.pid for process in outer.OWNED], final_owned_cleanup=cleanup,
+        cleanup_errors=cleanup_errors, guard_errors=guard_errors, error=error, phases=phases,
+        all_tests_sha256=shared.sha(out / 'all-tests.json') if (out / 'all-tests.json').exists() else None,
+        default_player_after=shared.default_player(root), formal_acceptance=False,
+        original_unit_complete=False, independent_review='pending', native_Windows='pending'))
+    print(json.dumps(dict(context, passed=passed, error=error, cleanup_errors=cleanup_errors, guard_errors=guard_errors)), flush=True)
+    return 0 if passed else 1
+
+
+if __name__ == '__main__':
+    raise SystemExit(main())