Simplify guardrail checks and remove null output handling

Author: ciro-maciel

examples/guardrail.js

@@ -5,10 +5,10 @@ const { Agent, Runner, Tool, Guardrail } = require('../src/index');
 const inappropriateContentGuardrail = new Guardrail.Input({
     name: "inappropriate_content_filter",
     check: async (context, agent, input) => {
+
         // In a real implementation, you might use a content moderation API
         // Here we're just doing a simple check for demonstration
-        const message = typeof input === 'string' ? input :
-            (input[0]?.content || '');
+        const message = typeof input === 'string' ? input : (input[0]?.content || '');
 
         const inappropriateWords = ['hate', 'violence', 'explicit'];
         const containsInappropriate = inappropriateWords.some(word =>
@@ -25,21 +25,6 @@ const minimumLengthGuardrail = new Guardrail.Output({
     check: async (context, agent, output) => {
         const minimumLength = 20; // characters
 
-        // Safely handle null/undefined output
-        if (!output) {
-            return {
-                output_info: {
-                    checked_for: "minimum length",
-                    required_length: minimumLength,
-                    actual_length: 0,
-                    is_too_short: true,
-                    error: "Output is null or undefined"
-                },
-                tripwire_triggered: true
-            };
-        }
-
-        // Convert output to string if it isn't already
         const outputStr = String(output);
         const isTooShort = outputStr.length < minimumLength;