diff --git a/tests/test_review.py b/tests/test_review.py
new file mode 100644
index 0000000..3bf7b74
--- /dev/null
+++ b/tests/test_review.py
@@ -0,0 +1,238 @@
+"""F12 Review Pipeline + F13 Guardrail + F14 Rebuttal 单元测试
+
+按 test-plan-v2.6.md §F12-F14：
+- F12 T1: 验证流水线四步（P0）
+- F12 T2: 评分计算（P0）
+- F13 T1: Guardrail 门控（P0）
+- F14 T1: 反驳权流程（P0）
+- F14 T2: 最大轮次限制（P0）
+"""
+
+import json
+import pytest
+from pathlib import Path
+from unittest.mock import MagicMock
+
+from src.blackboard.models import Task
+from src.blackboard.operations import Blackboard
+from src.daemon.review import (
+    RebuttalManager,
+    ReviewPipeline,
+    ReviewResult,
+    ReviewVerdict,
+)
+
+
+@pytest.fixture
+def db_path(tmp_path):
+    return tmp_path / "blackboard.db"
+
+
+@pytest.fixture
+def bb(db_path):
+    return Blackboard(db_path)
+
+
+@pytest.fixture
+def pipeline():
+    return ReviewPipeline()
+
+
+@pytest.fixture
+def pipeline_with_bb(bb):
+    return ReviewPipeline(bb=bb)
+
+
+@pytest.fixture
+def low_risk_task():
+    return Task(id="t1", title="Low Risk", status="pending",
+                assigned_by="d", risk_level="low")
+
+
+@pytest.fixture
+def high_risk_task():
+    return Task(id="t2", title="High Risk", status="pending",
+                assigned_by="d", risk_level="high")
+
+
+@pytest.fixture
+def critical_task():
+    return Task(id="t3", title="Critical", status="pending",
+                assigned_by="d", risk_level="critical")
+
+
+@pytest.fixture
+def task_with_outputs(tmp_path):
+    """有真实产出的 task"""
+    out_md = tmp_path / "output.md"
+    out_md.write_text("# Result\n\nThis is a valid output with enough content.")
+    out_json = tmp_path / "result.json"
+    out_json.write_text(json.dumps({"status": "ok", "value": 42}))
+    return [
+        {"path": str(out_md), "type": "markdown"},
+        {"path": str(out_json), "type": "json"},
+    ]
+
+
+# ---------------------------------------------------------------------------
+# F12 T1: 验证流水线四步
+# ---------------------------------------------------------------------------
+
+class TestReviewPipeline:
+    def test_no_outputs_fails(self, pipeline, low_risk_task):
+        result = pipeline.run_review(low_risk_task, outputs=None)
+        assert result["verdict"] == "fail"
+        assert result["score"] == 0.0
+
+    def test_empty_outputs_fails(self, pipeline, low_risk_task):
+        result = pipeline.run_review(low_risk_task, outputs=[])
+        assert result["verdict"] == "fail"
+
+    def test_existing_outputs_pass(self, pipeline, low_risk_task, task_with_outputs):
+        result = pipeline.run_review(low_risk_task, outputs=task_with_outputs)
+        assert result["verdict"] == "pass"
+
+    def test_missing_file_fails(self, pipeline, low_risk_task):
+        outputs = [{"path": "/nonexistent/file.md", "type": "markdown"}]
+        result = pipeline.run_review(low_risk_task, outputs=outputs)
+        assert result["verdict"] == "fail"
+
+    def test_results_have_all_steps(self, pipeline, low_risk_task, task_with_outputs):
+        result = pipeline.run_review(low_risk_task, outputs=task_with_outputs)
+        steps = {r["step"] for r in result["results"]}
+        assert "existence" in steps
+        assert "format" in steps
+        assert "quality" in steps
+
+    def test_observation_recorded(self, pipeline_with_bb, low_risk_task, task_with_outputs):
+        pipeline_with_bb.run_review(low_risk_task, outputs=task_with_outputs)
+        obs = pipeline_with_bb.bb.list_observations(task_id=low_risk_task.id)
+        assert any("review-pipeline" in o.get("agent", "") for o in obs)
+
+
+# ---------------------------------------------------------------------------
+# F12 T2: 评分计算
+# ---------------------------------------------------------------------------
+
+class TestScoring:
+    def test_perfect_score(self, pipeline, low_risk_task, task_with_outputs):
+        result = pipeline.run_review(low_risk_task, outputs=task_with_outputs)
+        assert result["score"] >= 0.9
+
+    def test_custom_check_boosts_score(self, low_risk_task, task_with_outputs):
+        def good_check(task, outputs):
+            return {"score": 1.0, "suggestions": []}
+
+        p = ReviewPipeline(custom_checks={"custom": good_check})
+        result = p.run_review(low_risk_task, outputs=task_with_outputs)
+        assert result["score"] >= 0.9
+
+    def test_custom_check_lowers_score(self, low_risk_task, task_with_outputs):
+        def bad_check(task, outputs):
+            return {"score": 0.2, "suggestions": ["Improve X"]}
+
+        p = ReviewPipeline(custom_checks={"custom": bad_check})
+        result = p.run_review(low_risk_task, outputs=task_with_outputs)
+        assert result["score"] < 1.0
+
+    def test_custom_check_exception_handled(self, low_risk_task, task_with_outputs):
+        def error_check(task, outputs):
+            raise ValueError("test error")
+
+        p = ReviewPipeline(custom_checks={"bad": error_check})
+        result = p.run_review(low_risk_task, outputs=task_with_outputs)
+        assert result["verdict"] in ("pass", "fail")
+
+
+# ---------------------------------------------------------------------------
+# F13 T1: Guardrail 门控
+# ---------------------------------------------------------------------------
+
+class TestGuardrail:
+    def test_low_risk_auto(self, pipeline, low_risk_task, task_with_outputs):
+        result = pipeline.run_review(low_risk_task, outputs=task_with_outputs)
+        assert result["gate"] == "auto"
+        assert result["needs_human"] is False
+
+    def test_high_risk_mandatory(self, pipeline, high_risk_task, task_with_outputs):
+        result = pipeline.run_review(high_risk_task, outputs=task_with_outputs)
+        assert result["gate"] == "mandatory"
+        assert result["needs_human"] is True
+
+    def test_critical_dual(self, pipeline, critical_task, task_with_outputs):
+        result = pipeline.run_review(critical_task, outputs=task_with_outputs)
+        assert result["gate"] == "dual"
+        assert result["needs_human"] is True
+
+    def test_fail_makes_mandatory(self, pipeline, low_risk_task):
+        """低风险但验证失败 → mandatory"""
+        result = pipeline.run_review(low_risk_task, outputs=None)
+        assert result["gate"] == "mandatory"
+
+    def test_medium_risk_optional(self):
+        task = Task(id="t", title="T", status="pending",
+                    assigned_by="d", risk_level="medium")
+        p = ReviewPipeline()
+        outputs = [{"content": "valid output here", "type": "text"}]
+        result = p.run_review(task, outputs=outputs)
+        assert result["gate"] == "optional"
+
+
+# ---------------------------------------------------------------------------
+# F14 T1: 反驳权流程
+# ---------------------------------------------------------------------------
+
+class TestRebuttal:
+    def test_submit_rebuttal_accepted(self, bb):
+        task = Task(id="t1", title="T", status="pending", assigned_by="d")
+        bb.create_task(task)
+
+        rm = RebuttalManager(bb=bb)
+        result = rm.submit_rebuttal("t1", "agent-1", "I disagree with the review")
+        assert result["status"] == "accepted"
+        assert result["round"] == 1
+        assert result["escalation_target"] == "simayi-challenger"
+
+    def test_second_round_escalates_to_pangtong(self, bb):
+        task = Task(id="t1", title="T", status="pending", assigned_by="d")
+        bb.create_task(task)
+
+        rm = RebuttalManager(bb=bb)
+        rm.submit_rebuttal("t1", "agent-1", "Round 1")
+        result = rm.submit_rebuttal("t1", "agent-1", "Round 2")
+        assert result["status"] == "accepted"
+        assert result["round"] == 2
+        assert result["escalation_target"] == "pangtong-fujunshi"
+
+
+# ---------------------------------------------------------------------------
+# F14 T2: 最大轮次限制
+# ---------------------------------------------------------------------------
+
+class TestRebuttalLimits:
+    def test_max_rounds_rejected(self, bb):
+        task = Task(id="t1", title="T", status="pending", assigned_by="d")
+        bb.create_task(task)
+
+        rm = RebuttalManager(bb=bb)
+        rm.submit_rebuttal("t1", "a", "R1")
+        rm.submit_rebuttal("t1", "a", "R2")
+        result = rm.submit_rebuttal("t1", "a", "R3")
+        assert result["status"] == "rejected"
+        assert "Max" in result["reason"]
+
+    def test_rebuttal_without_bb(self):
+        rm = RebuttalManager(bb=None)
+        result = rm.submit_rebuttal("t1", "a", "reason")
+        assert result["status"] == "accepted"
+        assert result["round"] == 1
+
+    def test_rebuttal_observation_recorded(self, bb):
+        task = Task(id="t1", title="T", status="pending", assigned_by="d")
+        bb.create_task(task)
+
+        rm = RebuttalManager(bb=bb)
+        rm.submit_rebuttal("t1", "agent-1", "test reason", evidence="file.txt")
+        obs = bb.list_observations(task_id="t1")
+        rebuttals = [o for o in obs if o.get("obs_type") == "rebuttal"]
+        assert len(rebuttals) == 1