diff --git a/docs/plans/2026-02-17-phase4-coredeno-webcomponents-design.md b/docs/plans/2026-02-17-phase4-coredeno-webcomponents-design.md
index 901dfa3..ef7fa67 100644
--- a/docs/plans/2026-02-17-phase4-coredeno-webcomponents-design.md
+++ b/docs/plans/2026-02-17-phase4-coredeno-webcomponents-design.md
@@ -1,3 +1,4 @@
+<!-- STATUS: Not yet implemented -->
 # Phase 4: CoreDeno + Web Components
 
 **Date:** 2026-02-17
diff --git a/docs/plans/2026-02-17-phase4-implementation.md b/docs/plans/2026-02-17-phase4-implementation.md
index 179d77a..4973c7c 100644
--- a/docs/plans/2026-02-17-phase4-implementation.md
+++ b/docs/plans/2026-02-17-phase4-implementation.md
@@ -1,3 +1,4 @@
+<!-- STATUS: Not yet implemented -->
 # Phase 4: CoreDeno + Web Components Implementation Plan
 
 > **For Claude:** REQUIRED SUB-SKILL: Use superpowers:executing-plans to implement this plan task-by-task.