06-multi-tool-agents

Multi-Tool Agents in Go

Video #06 — Claude API in Go Series
Publish date: 2026-07-06
Type: Heavy
Est. duration: ~40 min

What we cover

• Building a reusable Agent struct that wraps the tool-use loop
• Giving Claude multiple tools and letting it decide which to call
• Multi-step reasoning: Claude chains tool calls across multiple iterations
• Using a system prompt to guide agent behaviour and focus
• Patterns for production agents: logging, error handling, loop limits

Prerequisites

• Go 1.23+
• An Anthropic API key
• Episode 05 (single tool use loop) is essential background

Running the example

cd 06-multi-tool-agents
export ANTHROPIC_API_KEY=your_key_here
go run main.go

Project structure

.
├── README.md
├── go.mod
├── go.sum
└── main.go