diff --git a/editor/src/CostPolicyGuard.h b/editor/src/CostPolicyGuard.h
index e91a879..6d60d79 100644
--- a/editor/src/CostPolicyGuard.h
+++ b/editor/src/CostPolicyGuard.h
@@ -4,6 +4,8 @@
 #include <string>
 #include <vector>
 
+#include "PolicyDecisionUtil.h"
+
 struct CostPolicyInput {
     int stepTokens = 0;
     int workflowTokens = 0;
@@ -30,8 +32,7 @@ public:
                                   input.workflowTokens > input.workflowTokenCeiling;
 
         if (!stepOver && !workflowOver) {
-            out.allowed = true;
-            out.action = "allow";
+            setPolicyAction(out.allowed, out.requiresEscalation, out.action, "allow");
             return out;
         }
 
@@ -39,22 +40,18 @@ public:
         if (workflowOver) out.violations.push_back("workflow_token_ceiling_exceeded");
 
         if (!input.hasRationale) {
-            out.allowed = false;
-            out.action = "request_rationale";
+            setPolicyAction(out.allowed, out.requiresEscalation, out.action, "request_rationale");
             return out;
         }
 
         // With rationale, require explicit escalation approval for overage execution.
         if (!input.hasEscalationApproval) {
-            out.allowed = false;
-            out.requiresEscalation = true;
-            out.action = "escalate";
+            setPolicyAction(out.allowed, out.requiresEscalation, out.action, "escalate");
             return out;
         }
 
-        out.allowed = true;
+        setPolicyAction(out.allowed, out.requiresEscalation, out.action, "allow");
         out.requiresEscalation = true;
-        out.action = "allow";
         return out;
     }
 };
diff --git a/editor/src/PolicyDecisionUtil.h b/editor/src/PolicyDecisionUtil.h
new file mode 100644
index 0000000..1a076a2
--- /dev/null
+++ b/editor/src/PolicyDecisionUtil.h
@@ -0,0 +1,27 @@
+#pragma once
+// Sprint 29 refactor: shared policy decision helpers
+
+#include <string>
+#include <vector>
+
+inline void setEscalateDecision(bool& requiresHumanReview,
+                                std::string& decision,
+                                std::vector<std::string>& reasons,
+                                const std::string& reason) {
+    requiresHumanReview = true;
+    decision = "escalate_review";
+    if (!reason.empty()) reasons.push_back(reason);
+}
+
+inline void setPolicyAction(bool& allowed,
+                            bool& requiresEscalation,
+                            std::string& action,
+                            const std::string& nextAction) {
+    action = nextAction;
+    if (nextAction == "allow") {
+        allowed = true;
+        return;
+    }
+    allowed = false;
+    requiresEscalation = (nextAction == "escalate");
+}
diff --git a/editor/src/ReviewGatePolicyRefinement.h b/editor/src/ReviewGatePolicyRefinement.h
index a77ad49..c1adf48 100644
--- a/editor/src/ReviewGatePolicyRefinement.h
+++ b/editor/src/ReviewGatePolicyRefinement.h
@@ -4,6 +4,8 @@
 #include <string>
 #include <vector>
 
+#include "PolicyDecisionUtil.h"
+
 struct ReviewGateInput {
     bool safetyCritical = false;
     bool securitySensitive = false;
@@ -33,17 +35,15 @@ public:
         }
 
         if (input.safetyCritical || input.securitySensitive) {
-            out.requiresHumanReview = true;
-            out.decision = "escalate_review";
+            setEscalateDecision(out.requiresHumanReview, out.decision, out.reasons, "");
             if (input.safetyCritical) out.reasons.push_back("safety_critical_change");
             if (input.securitySensitive) out.reasons.push_back("security_sensitive_change");
             return out;
         }
 
         if (input.postApplyFailureStreak >= 3) {
-            out.requiresHumanReview = true;
-            out.decision = "escalate_review";
-            out.reasons.push_back("repeated_post_apply_failures");
+            setEscalateDecision(out.requiresHumanReview, out.decision, out.reasons,
+                                "repeated_post_apply_failures");
             return out;
         }
 
@@ -61,8 +61,7 @@ public:
             return out;
         }
 
-        out.requiresHumanReview = true;
-        out.decision = "escalate_review";
+        setEscalateDecision(out.requiresHumanReview, out.decision, out.reasons, "");
         if (input.highCostOverage) out.reasons.push_back("high_cost_overage");
         if (input.confidenceScore < 70) out.reasons.push_back("low_confidence");
         return out;
diff --git a/progress.md b/progress.md
index e9dd012..7aa3aa1 100644
--- a/progress.md
+++ b/progress.md
@@ -9733,3 +9733,39 @@ into phase-level and sprint-level outcomes with closure diagnostics.
 - **New tests in this sprint plan:** 112/112 passing
 - **Phase 29a (544-548):** 56/56 passing
 - **Phase 29b (549-553):** 56/56 passing
+
+## Sprint 29 End Refactor Pass (Architecture Compliance)
+
+Performed a dedicated post-sprint refactor pass to reduce policy-guard
+duplication and re-validate architecture constraints without behavior changes.
+
+**Refactors applied:**
+- `editor/src/PolicyDecisionUtil.h`
+  - added shared helpers for policy decision transitions
+  - centralized common escalation/action state assignment logic
+- `editor/src/ReviewGatePolicyRefinement.h`
+  - switched repeated escalation decision branches to shared helper usage
+  - removed duplicated inline escalation state mutation
+- `editor/src/CostPolicyGuard.h`
+  - switched repeated action/allow/escalation transitions to shared helper usage
+  - removed duplicated inline action-state assignments
+
+**Architecture compliance audit:**
+- Header size gate (`<=600` lines): PASS across Sprint 29 modules
+  - largest audited header: `editor/src/ConstrainedConfidenceCalibrator.h` (`97` lines)
+- `goto` usage in Sprint 29 runtime path: PASS (none)
+- Stale TODO markers in Sprint 29 modules: PASS (none)
+- Header-only pattern for Sprint 29 additions: PASS
+
+**Refactor verification run:**
+- `cmake --build editor/build-native --target step544_test step545_test step546_test step547_test step548_test step549_test step550_test step551_test step552_test step553_test` - PASS
+- `./editor/build-native/step544_test` - PASS (12/12)
+- `./editor/build-native/step545_test` - PASS (12/12)
+- `./editor/build-native/step546_test` - PASS (12/12)
+- `./editor/build-native/step547_test` - PASS (12/12)
+- `./editor/build-native/step548_test` - PASS (8/8)
+- `./editor/build-native/step549_test` - PASS (12/12)
+- `./editor/build-native/step550_test` - PASS (12/12)
+- `./editor/build-native/step551_test` - PASS (12/12)
+- `./editor/build-native/step552_test` - PASS (12/12)
+- `./editor/build-native/step553_test` - PASS (8/8)