Intelligent Tool Integration

Agents become useful when they can use tools.

Example:

User
 ↓
Agent
 ├── Search
 ├── CRM
 ├── Calculator
 ├── Database
 └── Email

But tool calls must be reliable.

A tool should clearly define:

Tool name
Description
Parameters
Parameter types
Required fields
Return format
Errors

Example concept:

{
  "name": "get_customer",
  "description": "Retrieve customer information",
  "parameters": {
    "customer_id": "string"
  }
}

The model can then determine how to invoke the capability.

Never blindly trust model-generated parameters.

Agent
 ↓
Tool Call
 ↓
Validate Parameters
 ↓
Valid?
 ├── Yes → Execute
 └── No → Return Error

Examples:

• required field missing
• invalid ID
• invalid date
• unsupported operation
• invalid data type

Lambda can act as the execution layer.

Agent
 ↓
Tool Definition
 ↓
Lambda
 ↓
Validate
 ↓
Execute
 ↓
Success / Error

Error handling should produce controlled results instead of allowing failures to break the entire workflow.