Fix scoped repaired promotion source root

scripts/platform.py

@@ -12956,13 +12956,29 @@ def product_candidate_promotion_materialized_source_dir(
         return None
     commit_paths = string_list(promotion_request.get("commit_paths"))
     if commit_paths and all(
-        path.startswith("runs/repaired_materialized_candidate_specs/")
+        product_candidate_promotion_is_repaired_materialized_path(path)
         for path in commit_paths
     ):
+        # Promotion paths remain repository-relative even when a durable
+        # workspace binding scopes artifacts below runs/<workspace-id>.
+        # Git Service joins this source root with each approved path.
+        for ancestor in (runs_dir, *runs_dir.parents):
+            if ancestor.name == "runs":
+                return ancestor.parent
         return runs_dir.parent
     return runs_dir / "materialized_candidate_specs"
 
 
+def product_candidate_promotion_is_repaired_materialized_path(path: str) -> bool:
+    parts = Path(path).parts
+    return (
+        len(parts) >= 3
+        and parts[0] == "runs"
+        and ".." not in parts
+        and "repaired_materialized_candidate_specs" in parts
+    )
+
+
 def product_candidate_promotion_operation(
     *,
     name: str,

tests/test_platform_cli.py

@@ -9,6 +9,7 @@
 import unittest
 
 from scripts import hosted_managed_operation_queue as queue_module
+from scripts import platform as platform_module
 from tests.platform_fixtures import workspace_creation_request
 from tests.test_hosted_managed_operation_queue import request_for
 
@@ -10780,6 +10781,87 @@ def test_product_candidate_promotion_execute_copies_repaired_paths(
                 ).is_file()
             )
 
+    def test_product_candidate_promotion_execute_copies_workspace_scoped_repaired_paths(
+        self,
+    ) -> None:
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            tmp_root = Path(tmp_dir)
+            plan_path = self.build_graph_repository_execution_plan(tmp_root)
+            approved_path = (
+                "runs/hosted-operation-canary/"
+                "repaired_materialized_candidate_specs/IDEA-ALPHA.yaml"
+            )
+            approval_decision = self.write_candidate_approval_decision(
+                tmp_root,
+                paths=[approved_path],
+            )
+            promotion_request = tmp_root / "graph_repository_promotion_request.json"
+            request_result = self.run_cli(
+                "product-candidate-promotion",
+                "request",
+                "--plan",
+                str(plan_path),
+                "--approval-decision",
+                str(approval_decision),
+                "--output",
+                str(promotion_request),
+                "--format",
+                "json",
+            )
+            self.assertEqual(request_result.returncode, 0, request_result.stderr)
+            repaired_spec_path = tmp_root / approved_path
+            repaired_spec_path.parent.mkdir(parents=True, exist_ok=True)
+            repaired_spec_path.write_text(
+                "id: IDEA-ALPHA\nsummary: Scoped repaired candidate spec\n",
+                encoding="utf-8",
+            )
+            repository_dir = self.create_graph_repository_checkout(tmp_root)
+            workspace_dir = tmp_root / "candidate-worktree"
+
+            result = self.run_cli(
+                "product-candidate-promotion",
+                "execute",
+                "--promotion-request",
+                str(promotion_request),
+                "--approval-decision",
+                str(approval_decision),
+                "--repository-dir",
+                str(repository_dir),
+                "--workspace-dir",
+                str(workspace_dir),
+                "--open-review-dry-run",
+                "--format",
+                "json",
+            )
+
+            self.assertEqual(result.returncode, 0, result.stderr)
+            payload = json.loads(result.stdout)
+            self.assertTrue(payload["ok"], payload["diagnostics"])
+            self.assertEqual(payload["materialized_source_dir"], str(tmp_root.resolve()))
+            self.assertEqual(payload["git_review"]["copied_file_count"], 1)
+            self.assertTrue((workspace_dir / approved_path).is_file())
+
+    def test_product_candidate_promotion_resolves_scoped_repaired_paths_from_repository_root(
+        self,
+    ) -> None:
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            tmp_root = Path(tmp_dir)
+            runs_dir = tmp_root / "runs" / "hosted-operation-canary"
+            plan_path = runs_dir / "graph_repository_execution_plan.json"
+            source_dir = platform_module.product_candidate_promotion_materialized_source_dir(
+                explicit=None,
+                plan_path=plan_path,
+                plan={"runs_dir": str(runs_dir)},
+                promotion_request={
+                    "commit_paths": [
+                        "runs/hosted-operation-canary/"
+                        "repaired_materialized_candidate_specs/IDEA-ALPHA.yaml"
+                    ]
+                },
+            )
+
+            self.assertEqual(source_dir, tmp_root.resolve())
+
     def test_product_candidate_promotion_execute_resolves_relative_child_inputs(
         self,
     ) -> None: