feat(ai-guard): return SDS findings into SDK Response

dd-java-agent/agent-aiguard/src/main/java/com/datadog/aiguard/AIGuardInternal.java

@@ -270,9 +270,9 @@ public Evaluation evaluate(final List<Message> messages, final Options options)
         WafMetricCollector.get().aiGuardRequest(action, shouldBlock);
         if (shouldBlock) {
           span.setTag(BLOCKED_TAG, true);
-          throw new AIGuardAbortError(action, reason, tags);
+          throw new AIGuardAbortError(action, reason, tags, sdsFindings);
         }
-        return new Evaluation(action, reason, tags);
+        return new Evaluation(action, reason, tags, sdsFindings);
       }
     } catch (AIGuardAbortError e) {
       span.addThrowable(e);

dd-java-agent/agent-aiguard/src/test/groovy/com/datadog/aiguard/AIGuardInternalTests.groovy

@@ -210,11 +210,13 @@ class AIGuardInternalTests extends DDSpecification {
       error.action == suite.action
       error.reason == suite.reason
       error.tags == suite.tags
+      error.sds == []
     } else {
       error == null
       eval.action == suite.action
       eval.reason == suite.reason
       eval.tags == suite.tags
+      eval.sds == []
     }
     assertTelemetry('ai_guard.requests', "action:$suite.action", "block:$throwAbortError", 'error:false')
 
@@ -366,14 +368,15 @@ class AIGuardInternalTests extends DDSpecification {
     Map<String, Object> receivedMeta
 
     when:
-    aiguard.evaluate(PROMPT, AIGuard.Options.DEFAULT)
+    final result = aiguard.evaluate(PROMPT, AIGuard.Options.DEFAULT)
 
     then:
     1 * span.setMetaStruct(AIGuardInternal.META_STRUCT_TAG, _) >> {
       receivedMeta = it[1] as Map<String, Object>
       return span
     }
     receivedMeta.sds == sdsFindings
+    result.sds == sdsFindings
   }
 
   void 'test evaluate with empty sds findings'() {
@@ -382,19 +385,41 @@ class AIGuardInternalTests extends DDSpecification {
     Map<String, Object> receivedMeta
 
     when:
-    aiguard.evaluate(PROMPT, AIGuard.Options.DEFAULT)
+    final result = aiguard.evaluate(PROMPT, AIGuard.Options.DEFAULT)
 
     then:
     1 * span.setMetaStruct(AIGuardInternal.META_STRUCT_TAG, _) >> {
       receivedMeta = it[1] as Map<String, Object>
       return span
     }
     !receivedMeta.containsKey('sds')
+    result.sds == (sdsFindings ?: [])
 
     where:
     sdsFindings << [null, []]
   }
 
+  void 'test evaluate with sds findings in abort error'() {
+    given:
+    final sdsFindings = [
+      [
+        rule_display_name: 'Credit Card Number',
+        rule_tag: 'credit_card',
+        category: 'pii',
+        matched_text: '4111111111111111',
+        location: [start_index: 10, end_index_exclusive: 26, path: 'messages[0].content[0].text']
+      ]
+    ]
+    final aiguard = mockClient(200, [data: [attributes: [action: 'ABORT', reason: 'PII detected', tags: ['pii'], sds_findings: sdsFindings, is_blocking_enabled: true]]])
+
+    when:
+    aiguard.evaluate(PROMPT, new AIGuard.Options().block(true))
+
+    then:
+    final error = thrown(AIGuard.AIGuardAbortError)
+    error.sds == sdsFindings
+  }
+
   void 'test missing tool name'() {
     given:
     final aiguard = mockClient(200, [data: [attributes: [action: 'ALLOW', reason: 'Just do it']]])

dd-trace-api/src/main/java/datadog/trace/api/aiguard/AIGuard.java

@@ -69,12 +69,15 @@ public static class AIGuardAbortError extends RuntimeException {
     private final Action action;
     private final String reason;
     private final List<String> tags;
+    private final List<?> sds;
 
-    public AIGuardAbortError(final Action action, final String reason, final List<String> tags) {
+    public AIGuardAbortError(
+        final Action action, final String reason, final List<String> tags, final List<?> sds) {
       super(reason);
       this.action = action;
       this.reason = reason;
       this.tags = tags;
+      this.sds = sds != null ? sds : Collections.emptyList();
     }
 
     public Action getAction() {
@@ -88,6 +91,10 @@ public String getReason() {
     public List<String> getTags() {
       return tags;
     }
+
+    public List<?> getSds() {
+      return sds;
+    }
   }
 
   /**
@@ -149,18 +156,22 @@ public static class Evaluation {
     final Action action;
     final String reason;
     final List<String> tags;
+    final List<?> sds;
 
     /**
      * Creates a new evaluation result.
      *
      * @param action the recommended action for the evaluated content
      * @param reason human-readable explanation for the decision
      * @param tags list of tags associated with the evaluation (e.g. indirect-prompt-injection)
+     * @param sds list of Sensitive Data Scanner findings
      */
-    public Evaluation(final Action action, final String reason, final List<String> tags) {
+    public Evaluation(
+        final Action action, final String reason, final List<String> tags, final List<?> sds) {
       this.action = action;
       this.reason = reason;
       this.tags = tags;
+      this.sds = sds != null ? sds : Collections.emptyList();
     }
 
     /**
@@ -189,6 +200,15 @@ public String getReason() {
     public List<String> getTags() {
       return tags;
     }
+
+    /**
+     * Returns the list of Sensitive Data Scanner findings.
+     *
+     * @return list of SDS findings.
+     */
+    public List<?> getSds() {
+      return sds;
+    }
   }
 
   /**

dd-trace-api/src/main/java/datadog/trace/api/aiguard/noop/NoOpEvaluator.java

@@ -13,6 +13,6 @@ public final class NoOpEvaluator implements Evaluator {
 
   @Override
   public Evaluation evaluate(final List<Message> messages, final Options options) {
-    return new Evaluation(ALLOW, "AI Guard is not enabled", emptyList());
+    return new Evaluation(ALLOW, "AI Guard is not enabled", emptyList(), emptyList());
   }
 }