diff --git a/domains/coding/skills/controller-guidelines/skill.md b/domains/coding/skills/controller-guidelines/skill.md
index 176ca11d..231335e9 100644
--- a/domains/coding/skills/controller-guidelines/skill.md
+++ b/domains/coding/skills/controller-guidelines/skill.md
@@ -1,4 +1,5 @@
 ---
 name: controller-guidelines
 description: BaseController development patterns
+base: true
 ---
diff --git a/domains/performance/skills/perf-hooks-effects/skill.md b/domains/performance/skills/perf-hooks-effects/skill.md
index 871b0c30..679c2657 100644
--- a/domains/performance/skills/perf-hooks-effects/skill.md
+++ b/domains/performance/skills/perf-hooks-effects/skill.md
@@ -1,4 +1,5 @@
 ---
 name: perf-hooks-effects
 description: React hooks and effects optimization
+base: true
 ---
diff --git a/domains/performance/skills/perf-react-compiler/skill.md b/domains/performance/skills/perf-react-compiler/skill.md
index c272fabc..9c93c6a0 100644
--- a/domains/performance/skills/perf-react-compiler/skill.md
+++ b/domains/performance/skills/perf-react-compiler/skill.md
@@ -1,4 +1,5 @@
 ---
 name: perf-react-compiler
 description: React Compiler optimization patterns
+base: true
 ---
diff --git a/domains/performance/skills/perf-rendering/skill.md b/domains/performance/skills/perf-rendering/skill.md
index 05133e17..b738426a 100644
--- a/domains/performance/skills/perf-rendering/skill.md
+++ b/domains/performance/skills/perf-rendering/skill.md
@@ -1,4 +1,5 @@
 ---
 name: perf-rendering
 description: Rendering performance optimization
+base: true
 ---
diff --git a/domains/performance/skills/perf-state-management/skill.md b/domains/performance/skills/perf-state-management/skill.md
index f571dccf..c6722a4a 100644
--- a/domains/performance/skills/perf-state-management/skill.md
+++ b/domains/performance/skills/perf-state-management/skill.md
@@ -1,4 +1,5 @@
 ---
 name: perf-state-management
 description: Redux and state management optimization
+base: true
 ---
diff --git a/domains/testing/skills/extension-testing/skill.md b/domains/testing/skills/extension-testing/skill.md
index cb1dc905..ff56807f 100644
--- a/domains/testing/skills/extension-testing/skill.md
+++ b/domains/testing/skills/extension-testing/skill.md
@@ -7,6 +7,7 @@ description: >
   the user mentions FixtureBuilderV2, page objects, E2E flake, POM anti-patterns,
   MMQA testing-skills tickets, or asks which Extension testing skill to install.
 maturity: stable
+base: true
 ---
 
 # Extension testing