diff --git a/.github/workflows/agent-review-runtime-quality-ci.yml b/.github/workflows/agent-review-runtime-quality-ci.yml
index fd54b694a1..3680da8778 100644
--- a/.github/workflows/agent-review-runtime-quality-ci.yml
+++ b/.github/workflows/agent-review-runtime-quality-ci.yml
@@ -32,6 +32,9 @@ on:
       - "tests/test_strix_quality_timeout_fixture_budget.py"
       - "tests/test_agent_review_runtime_quality_consolidation.py"
       - ".github/workflows/pr-review-merge-scheduler.yml"
+      - "scripts/ci/pr_review_merge_scheduler.py"
+      - "scripts/ci/pr_review_merge_scheduler_core.py"
+      - "tests/test_pr_review_merge_scheduler.py"
       - "scripts/ci/current_head_run_coalescer.py"
       - ".github/workflows/pr-review-fix-scheduler.yml"
       - "scripts/ci/pr_review_fix_scheduler.py"
@@ -203,12 +206,18 @@ jobs:
                 noema_suite=true
                 opencode_suite=true
                 ;;
-              .github/workflows/pr-review-merge-scheduler.yml|\
+              .github/workflows/pr-review-merge-scheduler.yml)
+                queue_suite=true
+                review_repair_suite=true
+                ;;
               scripts/ci/current_head_run_coalescer.py)
                 queue_suite=true
                 ;;
               .github/workflows/pr-review-fix-scheduler.yml|\
               scripts/ci/pr_review_fix_scheduler.py|\
+              scripts/ci/pr_review_merge_scheduler.py|\
+              scripts/ci/pr_review_merge_scheduler_core.py|\
+              tests/test_pr_review_merge_scheduler.py|\
               .github/workflows/pr-review-autofix.yml|\
               .github/workflows/hourly-review-repair.yml|\
               scripts/ci/pr_review_conflict_scope.py|\
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a1552edf4..06b3dba425 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,16 @@
 - Raised `hourly-review-repair.yml`'s discovery ceiling from 50 to 200 while rotating deterministic 50-PR deep-inspection windows by hourly run number. The scheduler hydrates only the selected window and stops immediately after its single dispatch, preserving access to newer PRs without quadrupling expensive review/check/comment work. See `docs/doctoring/hourly-review-repair-single-file-consolidation.md`'s 2026-09-03 follow-up.
 
 ## [Unreleased]
+- Include merge-scheduler entrypoint, core, and regression-test changes in
+  the existing runtime-quality workflow's trigger and suite selector. Scheduler
+  workflow edits retain queue checks and also select the full review-repair
+  suite. Selector-only test edits use the existing unconditional contract step;
+  changelog-only edits still do not start this runner. No job is added.
+- Complete the scheduler test isolation introduced by #1896 for the two
+  remaining fixtures that invoke `inspect_pr(..., dry_run=False)` or
+  `main(...)`. Both now stub the environment-gated startup-failure recovery
+  owner, so `GITHUB_ACTIONS=true` exercises the production guard without
+  issuing real GitHub calls or rejecting synthetic fixture SHAs.
 - **Fix current-main contract drift that blocked the unscoped
   `agent-review-runtime-quality-ci.yml` "Verify scheduler and
   contextual-orchestrator review-repair contracts" step (which discovers and
diff --git a/tests/test_agent_review_runtime_quality_consolidation.py b/tests/test_agent_review_runtime_quality_consolidation.py
index dfa6342c0d..b0c90eb707 100644
--- a/tests/test_agent_review_runtime_quality_consolidation.py
+++ b/tests/test_agent_review_runtime_quality_consolidation.py
@@ -3,8 +3,11 @@
 from __future__ import annotations
 
 import re
+import subprocess
 from pathlib import Path
 
+import pytest
+
 
 REPOSITORY_ROOT = Path(__file__).resolve().parents[1]
 WORKFLOW_PATH = (
@@ -70,6 +73,9 @@ def test_consolidated_workflow_materializes_one_runner_job() -> None:
     assert "workflow_dispatch:" not in workflow
     assert "gh api" not in workflow
     assert re.search(r"(?m)^[ \t]*sleep[ \t]+", workflow) is None
+    self_test_step = workflow.split("- name: Verify consolidated workflow contract", 1)[1]
+    assert "if:" not in self_test_step
+    assert "python -m pytest -q tests/test_agent_review_runtime_quality_consolidation.py" in self_test_step
 
 
 def test_changelog_only_edits_do_not_boot_the_consolidated_runner() -> None:
@@ -143,6 +149,45 @@ def test_review_repair_suite_is_selected_and_conditionally_executed() -> None:
     assert workflow.count("runs-on:") == 1
 
 
+@pytest.mark.parametrize(
+    ("changed_path", "starts_runner", "review_repair", "queue"),
+    (
+        ("scripts/ci/pr_review_merge_scheduler.py", True, True, False),
+        ("scripts/ci/pr_review_merge_scheduler_core.py", True, True, False),
+        ("tests/test_pr_review_merge_scheduler.py", True, True, False),
+        ("tests/test_agent_review_runtime_quality_consolidation.py", True, False, False),
+        (".github/workflows/pr-review-merge-scheduler.yml", True, True, True),
+        ("scripts/ci/current_head_run_coalescer.py", True, False, True),
+        ("CHANGELOG.md", False, False, False),
+    ),
+)
+def test_merge_scheduler_changes_start_and_select_contracts(
+    changed_path: str, starts_runner: bool, review_repair: bool, queue: bool
+) -> None:
+    """Bind scheduler changes to both runner admission and the real selector."""
+    workflow = _workflow_text()
+    trigger = workflow.split("on:\n", 1)[1].split("\nconcurrency:\n", 1)[0]
+    assert (f'      - "{changed_path}"' in trigger) is starts_runner
+
+    selector = workflow.split('            case "$changed_path" in\n', 1)[1].split(
+        "            esac", 1
+    )[0]
+    result = subprocess.run(
+        [
+            "bash", "--noprofile", "--norc", "-e", "-o", "pipefail", "-c",
+            'IFS= read -r changed_path\nreview_repair_suite=false\nqueue_suite=false\n'
+            'case "$changed_path" in\n' + selector
+            + 'esac\nprintf "%s,%s" "$review_repair_suite" "$queue_suite"\n',
+        ],
+        input=changed_path + "\n",
+        text=True,
+        capture_output=True,
+        check=True,
+    )
+    assert result.stdout == f"{str(review_repair).lower()},{str(queue).lower()}"
+    assert result.stderr == ""
+
+
 def test_commercial_readiness_suite_is_selected_and_conditionally_executed() -> None:
     """Preserve the retired caller's coverage contract in the shared job."""
 
diff --git a/tests/test_pr_review_merge_scheduler.py b/tests/test_pr_review_merge_scheduler.py
index b821fe1ee3..1e5848aac3 100644
--- a/tests/test_pr_review_merge_scheduler.py
+++ b/tests/test_pr_review_merge_scheduler.py
@@ -252,6 +252,11 @@ def fake_run(args):
         },
     )
     monkeypatch.setattr(sched, "run", fake_run)
+    monkeypatch.setattr(
+        sched,
+        "recover_current_head_startup_failures",
+        lambda repo, pr, *, dry_run: [],
+    )
 
     decision = inspect(candidate, dry_run=False)
 
@@ -9010,6 +9015,11 @@ def test_main_reconciles_the_durable_admission_gate_when_a_state_path_is_given(
         lambda repo, workflow, pr, dry_run: dispatched.append(pr["number"]),
     )
     monkeypatch.setattr(sched, "cancel_stale_pr_runs", lambda repo, pr, dry_run: [])
+    monkeypatch.setattr(
+        sched,
+        "recover_current_head_startup_failures",
+        lambda repo, pr, *, dry_run: [],
+    )
 
     state_path = tmp_path / "admission.json"
     assert (