Anthropic Advisor Tool: Near-Opus Agent Performance at Lower Cost

Anthropic launched the Advisor Strategy on April 9, 2026 — a way to get near-Opus intelligence in your AI agents at a fraction of the cost. The idea is simple. Instead of running Opus on every request, you pair a cheaper model with Opus as an on-demand advisor. The cheap model does all the work. Opus only steps in when needed. How It Works You have two roles: Executor — Sonnet or Haiku. Runs every turn. Calls tools, reads results, makes decisions. Advisor — Opus. Runs on-demand only. Reviews the shared context and sends guidance when the executor is stuck. The executor and advisor share the same context: the system prompt, tool definitions, full conversation history, and all prior tool results. When the executor hits a hard decision, it calls the advisor tool. Opus reviews the full context and sends back a plan or correction. Then the executor continues. ...

April 9, 2026 · 3 min

Go Tutorial #8: Interfaces and Polymorphism

In the previous tutorial, you learned about structs, methods, and composition. Now it is time to learn about interfaces — one of Go’s most powerful features. Interfaces in Go are different from most languages. There is no implements keyword. If a type has the right methods, it automatically satisfies the interface. This is called implicit implementation. What is an Interface? An interface defines a set of method signatures. Any type that implements all those methods satisfies the interface: ...

April 9, 2026 · 9 min

WebAssembly Explained: How Your Browser Now Runs at Near-Native Speed

Figma’s canvas engine runs in your browser at desktop speed. Google Earth loads a 3D globe without a plugin. AutoCAD moved from a desktop app to a website. They all use WebAssembly. What is WebAssembly? WebAssembly — Wasm — is a binary format that browsers can run directly. It is not a programming language. It is a compile target. You write code in C++, Rust, Go, or another language. You compile it to a .wasm binary. The browser loads that binary and runs it at near-native speed. ...

April 9, 2026 · 5 min

Go Tutorial #7: Structs, Methods, and Composition

In the previous tutorial, you learned about slices and maps. Now it is time to learn how to create your own types with structs. Go does not have classes. Instead, it uses structs and methods. Structs hold data, and methods add behavior. This is simpler than class-based languages like Java or Python. Defining a Struct A struct groups related fields together: package main import "fmt" type User struct { Name string Email string Age int } func main() { // Create a struct with field names user1 := User{ Name: "Alex", Email: "alex@example.com", Age: 25, } fmt.Println(user1) // Access fields with dot notation fmt.Println("Name:", user1.Name) fmt.Println("Email:", user1.Email) // Update a field user1.Age = 26 fmt.Println("New age:", user1.Age) } Output: ...

April 9, 2026 · 8 min

Edge AI Agents: Running AI on 1MB RAM with Zig, Rust, and Small Models

Every AI agent we have discussed so far needs the cloud. You send a prompt to Claude or GPT, wait for a response, and pay per token. That works for coding and content generation — but what about a sensor on a factory floor? A camera in a farm? A device with no internet? That is where edge AI comes in. Running AI models directly on the device — no cloud, no latency, no API costs. ...

April 9, 2026 · 7 min

Go Tutorial #6: Arrays, Slices, and Maps

In the previous tutorial, you learned about control flow with if, switch, and for. Now it is time to learn about Go’s most important data structures: arrays, slices, and maps. Slices and maps are the collections you will use every day in Go. Arrays exist too, but you will almost always use slices instead. Arrays An array in Go has a fixed size. You set the size when you declare it, and it cannot change: ...

April 9, 2026 · 9 min

Go Tutorial #5: Control Flow — if, switch, for

In the previous tutorial, you learned about functions and error handling. Now it is time to learn how to control the flow of your program with if, switch, and for. Go keeps control flow simple. There is only one loop keyword: for. No while, no do-while. Just for. The switch statement is also simpler and more powerful than in most languages. if / else The basic if statement works like most languages. But Go does not need parentheses around the condition: ...

April 9, 2026 · 10 min

Go Tutorial #4: Functions and Error Handling

In the previous tutorial, you learned about variables, types, and constants. Now it is time to learn about functions. Functions are the building blocks of every Go program. Go functions have a unique feature: they can return multiple values. This is the foundation of Go’s error handling pattern. Basic Functions A function in Go starts with the func keyword: package main import "fmt" // A function that takes two ints and returns their sum func add(a int, b int) int { return a + b } // When parameters have the same type, you can shorten it func multiply(a, b int) int { return a * b } // A function with no return value func greet(name string) { fmt.Printf("Hello, %s!\n", name) } func main() { result := add(3, 4) fmt.Println("3 + 4 =", result) product := multiply(5, 6) fmt.Println("5 * 6 =", product) greet("Alex") } Output: ...

April 8, 2026 · 10 min

Go Tutorial #3: Variables, Types, and Constants

In the previous tutorial, you installed Go, set up VS Code, and wrote your first program. Now it is time to learn about variables, types, and constants. These are the building blocks of every Go program. Declaring Variables Go has two ways to declare variables: the var keyword and the short declaration :=. The var Keyword The var keyword declares a variable with an explicit type: package main import "fmt" func main() { var name string = "Alex" var age int = 25 var height float64 = 1.75 var isStudent bool = true fmt.Println(name, age, height, isStudent) } Output: ...

April 8, 2026 · 10 min

AI-Native Apps: How to Build Applications with AI as Core Logic (2026)

Most “AI apps” in 2023-2024 were wrappers. Take a text box, send it to ChatGPT API, display the response. That was it. In 2026, a new category is emerging: AI-native apps. These are applications designed from the ground up with AI as the core logic — not an add-on feature. The difference matters. And understanding it will change how you build software. What is an AI-Native App? An AI-native app is an application where AI is the primary logic engine, not a helper feature. ...

April 8, 2026 · 8 min