diff --git a/docs/modernization/tasks.md b/docs/modernization/tasks.md
index 4cf3ae0..927ee80 100644
--- a/docs/modernization/tasks.md
+++ b/docs/modernization/tasks.md
@@ -1356,6 +1356,7 @@ ctest --preset desktop-fast --build-config Debug -R "pp_paint_renderer_composito
 
 | Date | Task | Score | Validation | Commit |
 | --- | --- | ---: | --- | --- |
+| 2026-06-13 | STR-016 | +1 renderer boundary and OpenGL parity | `ctest --preset desktop-fast --build-config Debug -R "pp_paint_renderer_compositor|pp_paint_renderer_stroke_execution" --output-on-failure` | `pending` |
 | 2026-06-13 | STR-016 | +2 renderer boundary and OpenGL parity | `ctest --preset desktop-fast --build-config Debug -R "pp_paint_renderer_compositor|pp_paint_renderer_stroke_execution" --output-on-failure` | `pending` |
 
 ### Completed Task Log
diff --git a/tests/paint_renderer/compositor_tests.cpp b/tests/paint_renderer/compositor_tests.cpp
index e100c5d..6ab2448 100644
--- a/tests/paint_renderer/compositor_tests.cpp
+++ b/tests/paint_renderer/compositor_tests.cpp
@@ -3139,6 +3139,38 @@ void canvas_blend_gate_preserves_legacy_fallbacks(pp::tests::Harness& h)
     }
 }
 
+void canvas_blend_gate_combines_layer_and_stroke_complexity(pp::tests::Harness& h)
+{
+    const std::vector<int> layer_blend_modes { 0, 4, 0 };
+    const auto plan = plan_canvas_blend_gate(
+        RenderDeviceFeatures { .framebuffer_fetch = true, .texture_copy = true, .render_target_blit = true },
+        CanvasBlendGateRequest {
+            .extent = Extent2D { .width = 64, .height = 32 },
+            .layer_blend_modes = layer_blend_modes,
+            .has_stroke_blend_mode = true,
+            .stroke_blend_mode = 10,
+            .dual_brush_blend = true,
+            .pattern_blend = true,
+        });
+
+    PP_EXPECT(h, plan);
+    if (!plan) {
+        return;
+    }
+
+    PP_EXPECT(h, plan.value().shader_blend);
+    PP_EXPECT(h, plan.value().complex_blend);
+    PP_EXPECT(h, plan.value().stroke_complex);
+    PP_EXPECT(h, plan.value().dual_brush_complex);
+    PP_EXPECT(h, plan.value().pattern_complex);
+    PP_EXPECT(h, plan.value().first_complex_layer_index == 1);
+    PP_EXPECT(h, plan.value().reads_destination_color);
+    PP_EXPECT(h, plan.value().requires_auxiliary_texture);
+    PP_EXPECT(h, plan.value().requires_texture_copy);
+    PP_EXPECT(h, plan.value().requires_render_target_blit);
+    PP_EXPECT(h, plan.value().path == StrokeCompositePath::framebuffer_fetch);
+}
+
 void plans_canvas_stroke_feedback_paths(pp::tests::Harness& h)
 {
     const Extent2D extent { .width = 32, .height = 16 };
@@ -3498,6 +3530,7 @@ int main()
         legacy_node_stroke_preview_pass_orchestration_plan_preserves_feedback_material_and_composite_inputs);
     harness.run("plans_canvas_blend_gate_from_persisted_indices", plans_canvas_blend_gate_from_persisted_indices);
     harness.run("canvas_blend_gate_preserves_legacy_fallbacks", canvas_blend_gate_preserves_legacy_fallbacks);
+    harness.run("canvas_blend_gate_combines_layer_and_stroke_complexity", canvas_blend_gate_combines_layer_and_stroke_complexity);
     harness.run("plans_canvas_stroke_feedback_paths", plans_canvas_stroke_feedback_paths);
     harness.run("canvas_stroke_feedback_preserves_legacy_fallback", canvas_stroke_feedback_preserves_legacy_fallback);
     harness.run("plans_canvas_stroke_rasterization_boundary", plans_canvas_stroke_rasterization_boundary);