diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c75bf49..3abaf2a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,6 +4,9 @@ on:
     branches: [main, test]
   pull_request:
     branches: [main, test]
+  schedule:
+    # Weekly full mutation testing - Sundays at 2:00 AM UTC
+    - cron: '0 2 * * 0'
   workflow_dispatch:
     inputs:
       full_mutation:
@@ -136,9 +139,21 @@ jobs:
 
   full-mutation:
     name: Full Mutation Testing
-    if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.full_mutation == 'true' }}
+    if: ${{ github.event_name == 'schedule' || (github.event_name == 'workflow_dispatch' && github.event.inputs.full_mutation == 'true') }}
     runs-on: ubuntu-latest
     steps:
+      - name: Free disk space
+        run: |
+          echo "=== Disk usage before cleanup ==="
+          df -h /
+          echo "=== Removing unnecessary tools ==="
+          sudo rm -rf /usr/share/dotnet
+          sudo rm -rf /usr/local/lib/android
+          sudo rm -rf /opt/ghc
+          sudo rm -rf /opt/hostedtoolcache/CodeQL
+          sudo docker image prune -af || true
+          echo "=== Disk usage after cleanup ==="
+          df -h /
       - uses: actions/checkout@v6
         with:
           fetch-depth: 0
diff --git a/docs/test-results.json b/docs/test-results.json
index 9cb98f9..1ed6a69 100644
--- a/docs/test-results.json
+++ b/docs/test-results.json
@@ -11,7 +11,7 @@
       "github.com/Its-donkey/yougopher/docs/examples/chatbot": 0.0,
       "github.com/Its-donkey/yougopher/docs/examples/analytics": 0.0
     },
-    "lastUpdated": "2026-01-30 08:52 UTC"
+    "lastUpdated": "2026-01-30 10:15 UTC"
   },
   "mutation": {
     "summary": {