diff --git a/.github/workflows/teste-shell.yml b/.github/workflows/teste-shell.yml
index 01a02af..6c6f34f 100644
--- a/.github/workflows/teste-shell.yml
+++ b/.github/workflows/teste-shell.yml
@@ -19,11 +19,24 @@ jobs:
 
       - name: 📦 Verificar ferramentas disponíveis
         run: |
-          echo "=== Ferramentas ==="
-          bash --version
-          python3 --version
-          curl --version | head -1
+          echo "=== Sistema base ==="
+          cat /etc/os-release
+          echo ""
+          echo "=== Ferramentas disponíveis ==="
+          which bash && bash --version | head -1
+          which curl && curl --version | head -1
+          which wget && wget --version 2>&1 | head -1 || echo "wget: não instalado"
+          which git  && git --version
 
+      - name: 📦 Instalar python3 se necessário
+        run: |
+          # Alpine usa apk, Ubuntu/Debian usa apt
+          if command -v apk &>/dev/null; then
+            apk add --no-cache python3
+          elif command -v apt-get &>/dev/null; then
+            apt-get update -qq && apt-get install -y -qq python3
+          fi
+          python3 --version
       - name: 🌐 Testar conectividade externa
         run: |
           echo "=== Ping externo ==="