An agent is a model in a loop. Building AI Agents in Go has you build the loop: 17 chapters and 776 pages, from the first request to a crash-triage agent for a real Go web service, using only Go’s standard library. Every example runs offline with no API key.
Your Go CLI tool is on GitHub Releases. 80% of developers will never find it there. Here’s how to put it on pip and npm with 50 lines of bash, getting a 12x download multiplier. Full technique with scripts, numbers, and the release pipeline that ties it together.
In Python, undeclared variables don’t exist. In Java, local variables can’t be used before assignment. In Go, declaration creates a valid value. There is no uninitialized state - every value works from the moment it’s declared.
You write a struct with a Write method. Three months later, you discover it implements io.Writer. You never declared this. How did it happen? Exploring Go’s implicit interfaces and the power of accidental implementation.
In Python, everything is an object. In Java, everything is a class. In Go, everything is a value. These are fundamental design philosophies that shape how you write concurrent code, manage memory, and reason about performance.
The Go compiler decides whether your values live on the stack or heap through escape analysis. Understanding this mechanism explains Go’s performance characteristics and helps you write faster code without sacrificing clarity.