Function Schemas
Adding validation constraints to parameters
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Validation rules ensure agents provide correct data. They catch errors before execution and guide agents toward valid inputs.
🧪Interactive Validation Tester
Select a rule and test different inputs
📏 minLength
Minimum string length
{ "type": "string", "minLength": 3 }🧪 Test Input:
✅
Valid
Input passes validation
✓ Pass Example:
"Hello"✗ Fail Example:
"Hi"📚 Common Validation Rules
String Rules:
• minLength / maxLength
• pattern (regex)
• format (email, url, date)
• enum (fixed choices)
Number Rules:
• minimum / maximum
• exclusiveMinimum / exclusiveMaximum
• multipleOf
Array Rules:
• minItems / maxItems
• uniqueItems
• items (type of elements)
Object Rules:
• required (mandatory fields)
• properties (field definitions)
• additionalProperties
✅ Validation Best Practices
✓
Be specific: Add constraints that match your business logic
✓
Provide defaults: Use "default" property for optional parameters
✓
Use enums: Limit choices when values are fixed
✓
Format hints: Use "format" for dates, emails, URLs
✓
Test thoroughly: Verify edge cases and boundary values