diff --git a/src/main/java/us/muit/fs/a4i/config/IndicatorConfiguration.java b/src/main/java/us/muit/fs/a4i/config/IndicatorConfiguration.java
index 75b54f30..9730a9b5 100644
--- a/src/main/java/us/muit/fs/a4i/config/IndicatorConfiguration.java
+++ b/src/main/java/us/muit/fs/a4i/config/IndicatorConfiguration.java
@@ -122,6 +122,7 @@ private HashMap<String, String> isDefinedIndicator(String indicatorName, String
 					int warningLimit = 0;
 					int criticalLimit = 0;
 
+
 					if (limits != null) {
 						okLimit = limits.getInt("ok");
 						warningLimit = limits.getInt("warning");
diff --git a/src/main/java/us/muit/fs/a4i/control/GDIStrategy.java b/src/main/java/us/muit/fs/a4i/control/GDIStrategy.java
new file mode 100644
index 00000000..f9367aa8
--- /dev/null
+++ b/src/main/java/us/muit/fs/a4i/control/GDIStrategy.java
@@ -0,0 +1,55 @@
+package us.muit.fs.a4i.control;
+
+import us.muit.fs.a4i.exceptions.NotAvailableMetricException;
+import us.muit.fs.a4i.exceptions.ReportItemException;
+import us.muit.fs.a4i.model.entities.ReportItem;
+import us.muit.fs.a4i.model.entities.ReportItemI;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+
+public class GDIStrategy implements IndicatorStrategy<Double> {
+
+    private static final String METRIC_TOTAL = "issues_total";
+    private static final String METRIC_ETIQUETADOS = "issues_etiquetados";
+    private static final String RESULT_NAME = "grado_documentacion_issues";
+
+    @Override
+    public ReportItemI<Double> calcIndicator(List<ReportItemI<Double>> metrics) throws NotAvailableMetricException {
+        Optional<ReportItemI<Double>> totalOpt = metrics.stream()
+            .filter(m -> METRIC_TOTAL.equals(m.getName()))
+            .findFirst();
+
+        Optional<ReportItemI<Double>> etiquetadosOpt = metrics.stream()
+            .filter(m -> METRIC_ETIQUETADOS.equals(m.getName()))
+            .findFirst();
+
+        if (totalOpt.isEmpty() || etiquetadosOpt.isEmpty()) {
+            throw new NotAvailableMetricException("Faltan métricas necesarias para calcular el indicador.");
+        }
+
+        double total = totalOpt.get().getValue();
+        double etiquetados = etiquetadosOpt.get().getValue();
+
+        if (total == 0) {
+            throw new RuntimeException("El valor de 'issues_total' no puede ser cero.");
+        }
+
+        double resultado = (etiquetados / total) * 100.0;
+
+        try {
+            // Intentamos crear el ReportItem y si algo falla, envolvemos la excepción.
+            return new ReportItem.ReportItemBuilder<>(RESULT_NAME, resultado).build();
+        } catch (ReportItemException e) {
+            // Envolvemos la ReportItemException en una RuntimeException
+            throw new RuntimeException("Error al crear el ReportItem: " + e.getMessage(), e);
+        }
+    }
+
+
+    @Override
+    public List<String> requiredMetrics() {
+        return Arrays.asList(METRIC_TOTAL, METRIC_ETIQUETADOS);
+    }
+}
diff --git a/src/main/resources/a4iDefault.json b/src/main/resources/a4iDefault.json
index 33cee922..b7244873 100644
--- a/src/main/resources/a4iDefault.json
+++ b/src/main/resources/a4iDefault.json
@@ -90,6 +90,20 @@
 			"description": "Numero de issues abiertas",
 			"unit": "issues"
 		},
+		{
+			"name": "issues_total",
+			"type": "java.lang.Double",
+			"description": "Número de issues totales",
+			"unit": "issues"
+		
+		},
+		{
+			"name": "issues_etiquetados",
+			"type": "java.lang.Double",
+			"description": "Número de issues etiquetados",
+			"unit": "issues"
+		
+		},
 		{
 			"name": "openProjects",
 			"type": "java.lang.Integer",
@@ -275,6 +289,17 @@
 				"critical": 25
 			}
 		},
+		{
+			"name": "grado_documentacion_issues",
+			"type": "java.lang.Double",
+			"description": "% Issues etiquetados frente a totales",
+			"unit": "%",
+			"limits": {
+				"ok": 71,
+				"warning": 51,
+				"critical": 31
+			}
+		},
 		{
 			"name": "developerPerfomance",
 			"type": "java.lang.Double",
diff --git a/src/test/java/us/muit/fs/a4i/test/control/IndicatorStrategyTest.java b/src/test/java/us/muit/fs/a4i/test/control/IndicatorStrategyTest.java
new file mode 100644
index 00000000..19b224e2
--- /dev/null
+++ b/src/test/java/us/muit/fs/a4i/test/control/IndicatorStrategyTest.java
@@ -0,0 +1,59 @@
+package us.muit.fs.a4i.test.control;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import us.muit.fs.a4i.exceptions.NotAvailableMetricException;
+import us.muit.fs.a4i.exceptions.ReportItemException;
+import us.muit.fs.a4i.model.entities.ReportItem;
+import us.muit.fs.a4i.model.entities.ReportItemI;
+import us.muit.fs.a4i.control.GDIStrategy;
+import us.muit.fs.a4i.control.IndicatorStrategy;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+class IndicatorStrategyTest {
+
+    @Test
+    @DisplayName("Test correcto del cálculo GDI con métricas válidas")
+    void testCalcIndicator_OK() throws NotAvailableMetricException, ReportItemException {
+        IndicatorStrategy<Double> strategy = new GDIStrategy();
+
+        ReportItemI<Double> total = new ReportItem.ReportItemBuilder<>("issues_total", 10.0).build();
+        ReportItemI<Double> etiquetados = new ReportItem.ReportItemBuilder<>("issues_etiquetados", 7.0).build();
+
+        List<ReportItemI<Double>> metrics = Arrays.asList(total, etiquetados);
+
+        ReportItemI<Double> result = strategy.calcIndicator(metrics);
+        assertEquals(70.0, result.getValue(), 0.001, "El cálculo del GDI es incorrecto");
+        assertEquals("grado_documentacion_issues", result.getName(), "El nombre del resultado no es el esperado");
+    }
+
+    @Test
+    @DisplayName("Test de excepción cuando faltan métricas")
+    void testCalcIndicator_MissingMetrics() throws ReportItemException {
+        IndicatorStrategy<Double> strategy = new GDIStrategy();
+
+        ReportItemI<Double> etiquetados = new ReportItem.ReportItemBuilder<>("issues_etiquetados", 7.0).build();
+
+        List<ReportItemI<Double>> metrics = List.of(etiquetados);
+
+        assertThrows(NotAvailableMetricException.class, () -> {
+            strategy.calcIndicator(metrics);
+        }, "Se esperaba una excepción por falta de métricas");
+    }
+
+    @Test
+    @DisplayName("Test de requiredMetrics() devuelve métricas necesarias")
+    void testRequiredMetrics() {
+        IndicatorStrategy<Double> strategy = new GDIStrategy();
+        List<String> required = strategy.requiredMetrics();
+
+        assertTrue(required.contains("issues_total"));
+        assertTrue(required.contains("issues_etiquetados"));
+        assertEquals(2, required.size(), "Se esperaban exactamente dos métricas");
+    }
+}
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