Vibe Language Extension

VS Code support for Vibe — the language to build incredible AI agents

Installation

From VS Code Marketplace (recommended):

Search for "Vibe Language" in the Extensions panel, or run:

code --install-extension vibelang.vibe-language

Features

Editor Support

Syntax Highlighting — Full highlighting for .vibe files with embedded TypeScript support
Diagnostics — Real-time errors from lexer, parser, and semantic analysis
Autocomplete — Keywords, types, variables, functions, and built-in tools
Hover Information — Type info and documentation on hover
Go to Definition — Jump to function, variable, and model definitions
Find All References — Find all usages of a symbol
Rename Symbol — Rename variables, functions, and parameters across files
Signature Help — Parameter hints when calling functions
Document Symbols — Outline view showing functions, tools, models, and variables
Folding Ranges — Collapse functions, blocks, and loops
Document Formatting — Auto-format your Vibe code

Debugging

Full debugging support for Vibe programs:

Breakpoints — Set breakpoints in .vibe files
Step Through Code — Step over, step into, step out
Variable Inspection — View local and global variables
Call Stack — See the full call stack
Watch Expressions — Monitor expressions as you debug
Conditional Breakpoints — Break only when conditions are met
Logpoints — Log messages without stopping execution
TypeScript Block Debugging — Debug into embedded ts { } blocks

Quick Start

Install the Vibe CLI:

npm install -g @vibe-lang/vibe
# or
bun install -g @vibe-lang/vibe

Create a .env file with your API key:

ANTHROPIC_API_KEY=sk-ant-api03-xxxxxxxxxxxxx

Create hello.vibe:

import { env } from "system"

model claude = {
  name: "claude-sonnet-4-20250514",
  apiKey: env("ANTHROPIC_API_KEY"),
  provider: "anthropic"
}

let greeting = vibe "Say hello in a creative way"
greeting

Run it:
```
vibe hello.vibe
```

Debugging Setup

Open a .vibe file
Set breakpoints by clicking the gutter
Press F5 or go to Run → Start Debugging
Select "Vibe Debug" configuration

Example Code

import { env } from "system"

model gpt = {
  name: "gpt-4o",
  apiKey: env("OPENAI_API_KEY"),
  provider: "openai"
}

// Type-safe AI responses
let count: number = vibe "How many planets are in our solar system?" gpt

// Functions with AI
function summarize(content: text): text {
  return vibe "Summarize in one sentence: {content}" gpt
}

// Custom tools for AI to use
tool search(query: text): json
@description "Search the web"
{
  ts {
    // TypeScript implementation
    return { results: [] }
  }
}

// Parallel execution
async let a = vibe "Task 1" gpt
async let b = vibe "Task 2" gpt
let combined = vibe "Combine {a} and {b}" gpt

Documentation

License

ISC