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CodeSignal

Developing GPT-5 Agents with Tool Integration in Ruby

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Overview

Discover how to enhance GPT-5's capabilities by integrating custom tools and functions. Progress from creating tool schemas to building autonomous agents that can interact with external systems through iterative tool use.

Syllabus

  • Unit 1: Writing Tool Schemas for GPT-5
    • Build Your First Tool Function
    • Describe a Tool with a JSON Schema
    • Adding a Second Tool Schema and Function
    • Building a Tool Registry Mapping
  • Unit 2: Understanding How GPT-5 Uses Tools
    • Enabling Tool Use in a Basic Request
    • Guiding GPT-5 to Use Tools with a Developer Prompt
    • Parsing Function Call Responses
    • Multiple Function Calls in One Response
    • Mixing Addition and Multiplication Function Calls
  • Unit 3: Completing the Tool Use Cycle
    • Detecting and Parsing Function Calls
    • Execute Tools and Collect Function Outputs
    • Closing the Tool Execution Loop
    • Visualizing the Complete Message History
  • Unit 4: Building an Autonomous GPT-5 Agent
    • Build the Agent Class Foundation
    • Implementing Robust Tool Execution and Error Handling
    • Implement Basic Agent Conversation Flow
    • Implement an Iterative Agent Run Loop
    • Completing the Function-Call Loop for a Multi-Step Agent
    • Autonomous Agent Challenge: Solve a More Complex Quadratic Equation

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