diff --git a/editor/CMakeLists.txt b/editor/CMakeLists.txt
index f8ca837..1111571 100644
--- a/editor/CMakeLists.txt
+++ b/editor/CMakeLists.txt
@@ -4828,4 +4828,13 @@ target_link_libraries(step660_test PRIVATE
     tree_sitter_javascript tree_sitter_typescript
     tree_sitter_java tree_sitter_rust tree_sitter_go)
 
+add_executable(step661_test tests/step661_test.cpp)
+target_include_directories(step661_test PRIVATE src)
+target_link_libraries(step661_test PRIVATE
+    nlohmann_json::nlohmann_json
+    unofficial::tree-sitter::tree-sitter
+    tree_sitter_python tree_sitter_cpp tree_sitter_elisp
+    tree_sitter_javascript tree_sitter_typescript
+    tree_sitter_java tree_sitter_rust tree_sitter_go)
+
 # Step 12: Dear ImGui shell scaffolding created (main.cpp exists but not built due to dependencies)
diff --git a/editor/src/PilotQueuePanelModel.h b/editor/src/PilotQueuePanelModel.h
new file mode 100644
index 0000000..3b8d96e
--- /dev/null
+++ b/editor/src/PilotQueuePanelModel.h
@@ -0,0 +1,39 @@
+#pragma once
+// Step 661: Pilot queue panel model
+
+#include <string>
+#include <vector>
+
+enum class PilotDecision { Pending, Approved, Rejected, Modified };
+
+struct PilotQueueItem {
+    std::string jobId;
+    std::string summary;
+    bool escalate = false;
+    double ambiguity = 0.0;
+    PilotDecision decision = PilotDecision::Pending;
+    std::string strategyNote;
+};
+
+class PilotQueuePanelModel {
+public:
+    static bool needsHumanReview(const PilotQueueItem& item, double threshold = 0.5) {
+        return item.escalate || item.ambiguity > threshold;
+    }
+
+    static void approve(PilotQueueItem* item) {
+        if (!item) return;
+        item->decision = PilotDecision::Approved;
+    }
+
+    static void reject(PilotQueueItem* item) {
+        if (!item) return;
+        item->decision = PilotDecision::Rejected;
+    }
+
+    static void modify(PilotQueueItem* item, const std::string& note) {
+        if (!item) return;
+        item->decision = PilotDecision::Modified;
+        item->strategyNote = note;
+    }
+};
diff --git a/editor/tests/step661_test.cpp b/editor/tests/step661_test.cpp
new file mode 100644
index 0000000..bbba3a9
--- /dev/null
+++ b/editor/tests/step661_test.cpp
@@ -0,0 +1,24 @@
+// Step 661: Pilot queue panel (12 tests)
+
+#include "PilotQueuePanelModel.h"
+#include <iostream>
+static int p=0,f=0;
+#define T(n) { std::cout<<"  "<<#n<<"... "; }
+#define P() { std::cout<<"PASS\n"; ++p; }
+#define F(m) { std::cout<<"FAIL: "<<m<<"\n"; ++f; }
+#define C(c,m) if(!(c)){F(m);return;}
+
+void t1(){T(needs_review_when_escalate_true);PilotQueueItem i{"j","s",true,0.1};C(PilotQueuePanelModel::needsHumanReview(i),"review");P();}
+void t2(){T(needs_review_when_ambiguity_above_threshold);PilotQueueItem i{"j","s",false,0.8};C(PilotQueuePanelModel::needsHumanReview(i),"review");P();}
+void t3(){T(no_review_when_below_threshold_and_not_escalated);PilotQueueItem i{"j","s",false,0.2};C(!PilotQueuePanelModel::needsHumanReview(i),"no review");P();}
+void t4(){T(approve_sets_decision);PilotQueueItem i;PilotQueuePanelModel::approve(&i);C(i.decision==PilotDecision::Approved,"approve");P();}
+void t5(){T(reject_sets_decision);PilotQueueItem i;PilotQueuePanelModel::reject(&i);C(i.decision==PilotDecision::Rejected,"reject");P();}
+void t6(){T(modify_sets_decision);PilotQueueItem i;PilotQueuePanelModel::modify(&i,"note");C(i.decision==PilotDecision::Modified,"modify");P();}
+void t7(){T(modify_sets_strategy_note);PilotQueueItem i;PilotQueuePanelModel::modify(&i,"use safer path");C(i.strategyNote=="use safer path","note");P();}
+void t8(){T(approve_handles_null);PilotQueuePanelModel::approve(nullptr);P();}
+void t9(){T(reject_handles_null);PilotQueuePanelModel::reject(nullptr);P();}
+void t10(){T(modify_handles_null);PilotQueuePanelModel::modify(nullptr,"x");P();}
+void t11(){T(custom_threshold_respected);PilotQueueItem i{"j","s",false,0.6};C(!PilotQueuePanelModel::needsHumanReview(i,0.7),"threshold");P();}
+void t12(){T(threshold_strictly_greater);PilotQueueItem i{"j","s",false,0.5};C(!PilotQueuePanelModel::needsHumanReview(i,0.5),"strict");P();}
+
+int main(){std::cout<<"Step 661: Pilot queue panel\n";t1();t2();t3();t4();t5();t6();t7();t8();t9();t10();t11();t12();std::cout<<"\nResults: "<<p<<"/"<<(p+f)<<" passed\n";return f?1:0;}
diff --git a/progress.md b/progress.md
index 6f16d31..72255e3 100644
--- a/progress.md
+++ b/progress.md
@@ -13625,3 +13625,27 @@ job payload output (`type`, `goal`, `context.files`, `context.entropy_score`,
 - `editor/src/InferenceJobGenerator.h` (`32` <= `600`)
 - `editor/tests/step660_test.cpp` within test-file size guidance (`24` lines)
 - Header-only architecture and naming conventions remain aligned with `ARCHITECTURE.md`
+
+### Step 661: Pilot queue panel
+**Status:** PASS (12/12 tests)
+
+Adds pilot-queue review modeling for escalate/ambiguity gating and human
+decision actions (`approve`, `reject`, `modify`) with strategy-note support.
+
+**Files added:**
+- `editor/src/PilotQueuePanelModel.h` - pilot queue decision model
+- `editor/tests/step661_test.cpp` - 12 tests for review and action behavior
+
+**Files modified:**
+- `editor/CMakeLists.txt` - `step661_test` target
+
+**Verification run:**
+- `cmake -S editor -B editor/build-native` - PASS
+- `cmake --build editor/build-native --target step661_test step660_test` - PASS
+- `./editor/build-native/step661_test` - PASS (12/12)
+- `./editor/build-native/step660_test` - PASS (12/12) regression coverage
+
+**Architecture gate check:**
+- `editor/src/PilotQueuePanelModel.h` (`39` <= `600`)
+- `editor/tests/step661_test.cpp` within test-file size guidance (`24` lines)
+- Header-only architecture and naming conventions remain aligned with `ARCHITECTURE.md`