What is Build AI Agent SDK?

Build AI Agent SDK is a framework-agnostic TypeScript library for building intelligent AI agents with tools, workflows, and custom capabilities. It provides a clean, type-safe API that works with any JavaScript framework or runtime.

Why Build AI Agent SDK?

Modern applications increasingly need AI capabilities, but integrating LLMs comes with significant challenges:

• Complexity: Managing conversations, tool execution, streaming, and state
• Lock-in: Provider-specific SDKs tie you to particular LLM services
• Type Safety: Dynamic tool calling and untyped configurations lead to runtime errors
• Production Concerns: Error handling, retries, rate limiting, and monitoring

Build AI Agent SDK addresses these by providing:

1. Framework Agnostic: Works with React, Vue, Svelte, Angular, Express, Next.js, or vanilla JavaScript
2. Provider Agnostic: Support for OpenAI, Anthropic, Ollama, and custom providers
3. Type Safe: Full TypeScript support with comprehensive type definitions
4. Production Ready: Built-in error handling, retries, circuit breakers, and observability
5. Modular: Use only what you need with tree-shakeable exports

Architecture Overview

The SDK follows a layered architecture with clear separation of concerns: Add image of chart

Core Components

AgentBuilder

The fluent API for constructing agent configurations. Handles validation and provides type-safe configuration.

const agent = new AgentBuilder()
  .setType(AgentType.SmartAssistant)
  .setName('Support Agent')
  .setPrompt('You are a helpful assistant')
  .addTool('search', { tool: 'webSearch' })
  .build();

AgentExecutor

Orchestrates agent execution, managing message flow, tool calls, streaming, and state.

const result = await AgentExecutor.execute({
  agent,
  input: 'Hello, world!',
  provider: llmProvider,
  toolRegistry: tools
});

ToolRegistry

Manages tool registration and execution. Tools extend agent capabilities by connecting to external systems.

const registry = new ToolRegistry();
registry.register('weather', {
  displayName: 'Get Weather',
  tool: weatherTool
});

LLMProvider

Abstract interface for LLM providers. Enables provider-agnostic code that works with any supported LLM service.

const provider = new OpenAIProvider({
  apiKey: process.env.OPENAI_API_KEY,
  model: 'gpt-4'
});

Key Concepts

Agents

An agent is a configured AI entity with a specific purpose, tools, and behavior. Agents can be chatbots, workflow executors, data analysts, or custom types.

Tools

Tools are functions that agents can call to interact with external systems, perform calculations, or fetch data. They bridge the gap between LLMs and the real world.

Flows

Flows are structured multi-step workflows that orchestrate complex operations. They define sequences of agent interactions and tool executions.

Providers

Providers are adapters for different LLM services (OpenAI, Anthropic, Ollama). They normalize API differences and provide a consistent interface.

Repositories

Repositories handle data persistence for agents, conversations, and tool results. They abstract database operations.

When to Use Build AI Agent SDK

Use Build AI Agent SDK when you need to:

• Build conversational AI applications (chatbots, assistants)
• Create workflow automation with AI decision-making
• Integrate LLM capabilities into existing applications
• Build multi-agent systems with tool calling
• Need provider flexibility (switch between OpenAI, Ollama, etc.)
• Require type safety and production-grade error handling

Consider alternatives when:

• You only need simple prompt completion (use provider SDKs directly)
• You're building a simple prototype without tool calling
• Your use case is covered by high-level frameworks (Langchain, etc.)

Version Compatibility

SDK Version	Node.js	TypeScript	Vercel AI SDK	Zod
1.0.0-alpha	≥20.0	≥5.0	^4.1.54	^3.23

Bundle Size

• Full SDK: ~120KB minified
• Core only: ~45KB minified
• Tree-shakeable: Import only what you use

Browser Support

The SDK works in modern browsers via bundlers (webpack, Vite, etc.). Some features require polyfills:

• crypto for encryption utilities (Node.js only)
• fs for file storage (Node.js only)

For browser-only usage, exclude server-side modules:

// vite.config.js
export default {
  resolve: {
    alias: {
      'crypto': false,
      'fs': false,
    }
  }
}

Next Steps

• Installation - Set up the SDK in your project
• Quick Start - Build your first agent in 5 minutes
• Core Concepts - Understand agents, tools, and flows
• API Reference - Complete API documentation

License

MIT © Almosafer Team

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Last Updated: January 2025 | SDK Version: 1.0.0-alpha.8