AI Agents

"AI agents are sophisticated software systems that leverage artificial intelligence to perceive their environment, make autonomous decisions, and take actions to achieve specific goals. Unlike simpler AI programs, they exhibit reasoning, planning, and memory, adapting their behavior based on real-time feedback and learned experiences. Powered by foundational AI models like large language models (LLMs), these agents can process various data types, interact with external tools, and orchestrate complex, multi-step tasks without constant human intervention. They are increasingly being deployed across diverse sectors, from customer service and finance to healthcare and autonomous systems, to enhance efficiency, automate processes, and provide personalized experiences."- Gemini 2025

Image credit: Harrison Chase

AI Agents: The Next Evolution in Intelligent Systems

From simple chatbots to autonomous digital assistants

The Evolution from Chatbots to AI Agents

We're witnessing a fundamental shift in how we interact with artificial intelligence. Traditional chatbots were reactive systems that responded to specific inputs with pre-programmed responses. Today's AI agents represent a quantum leap forward—they're proactive, autonomous systems capable of understanding context, making decisions, and taking actions to achieve specific goals. Unlike their predecessors, AI agents can plan multi-step processes, learn from interactions, and adapt their behavior based on feedback and changing circumstances.

What are AI Agents?

AI agents are autonomous software systems powered by large language models (LLMs) that can perceive their environment, make decisions, and take actions to achieve specific objectives. Unlike traditional software that follows predetermined instructions, AI agents can reason about problems, plan sequences of actions, use tools and APIs, and adapt their approach based on results. They combine the conversational abilities of modern AI with the capacity for independent action, making them capable of handling complex, multi-step tasks that would typically require human intervention. Think of them as digital assistants that don't just answer questions—they can actually get things done.

Major Pre-built AI Agents

Microsoft Copilot

Integrated across Microsoft 365, Copilot assists with document creation, data analysis, and workflow automation within familiar Microsoft applications.

AWS Q

Amazon's AI assistant for developers and businesses, helping with code generation, AWS resource management, and technical documentation.

Google Workspace AI

AI-powered assistance across Gmail, Docs, Sheets, and other Google Workspace tools for enhanced productivity and collaboration.

Salesforce Einstein

AI agent platform embedded in Salesforce CRM, providing intelligent automation for sales, marketing, and customer service processes.

Essential AI Terms & Definitions

AI Agents
Autonomous systems that can perceive, reason, and act to achieve specific goals without constant human guidance.
Agentic Workflows
Multi-step processes where AI agents make decisions and take actions based on intermediate results and changing conditions.
LLMs (Large Language Models)
AI models trained on vast amounts of text data to understand and generate human-like language.
Generative AI (Gen AI)
AI systems capable of creating new content, including text, images, code, and other media.
RAG (Retrieval-Augmented Generation)
A technique that combines AI generation with external knowledge retrieval for more accurate and up-to-date responses.
Context Window
The amount of text (measured in tokens) that an AI model can process and remember in a single conversation.
API (Application Programming Interface)
A set of protocols that allow different software applications to communicate and share data.
Prompt Engineering
The practice of crafting effective instructions and queries to get desired responses from AI models.
Fine-tuning
The process of training an existing AI model on specific data to improve its performance for particular tasks.
Orchestration
The coordination and management of multiple AI agents or tools working together to complete complex tasks.

Building Your Own AI Agent: Think Backward from the Problem

Creating effective AI agents requires a problem-first approach. Start by clearly defining what you want to achieve, then work backward to determine the capabilities, tools, and integrations your agent will need. Consider these key questions: What specific tasks should your agent handle? What data sources does it need access to? How will it interact with existing systems? What level of autonomy is appropriate?

AI Agent Building Tools

Code & Low-Code Platforms

Tool Description URL Cost Difficulty
LangChain Python/JavaScript framework for building LLM applications with extensive tool integrations langchain.com Open Source Medium-High
LangGraph Extension of LangChain for building stateful, multi-agent workflows langgraph.dev Open Source High
CrewAI Framework for orchestrating role-playing AI agents that collaborate on tasks crewai.com Freemium Medium
AutoGen Microsoft's framework for building multi-agent conversation systems autogen.ai Open Source Medium-High
Haystack End-to-end framework for building search and question-answering systems haystack.deepset.ai Open Source Medium

No-Code Platforms

Tool Description URL Cost Difficulty
Zapier Workflow automation with AI-powered triggers and actions zapier.com $20-599/month Low
Dify Visual AI application builder with drag-and-drop interface dify.ai Free-$200/month Low-Medium
n8n Workflow automation tool with AI integrations and visual editor n8n.io Free-$50/month Low-Medium
Flowise Drag-and-drop tool for building LangChain flows visually flowiseai.com Open Source Low
Sim Studio Visual AI Agent workflow Builder simstudio.ai Open Source Low

Enterprise AI Agent Platforms

Platform Description URL Cost Difficulty
OpenAI Assistants API OpenAI's platform for building AI assistants with tool calling and file handling platform.openai.com Usage-based Medium
Google Vertex AI Google's unified ML platform with agent building capabilities cloud.google.com/vertex-ai Usage-based Medium-High
AWS Bedrock Agents Amazon's service for building and deploying AI agents using any framework or foundation models aws.amazon.com/bedrock/agentcore Usage-based Medium-High
Azure AI Studio Microsoft's comprehensive platform for AI development and deployment azure.microsoft.com/ai-studio Usage-based Medium-High
Anthropic Claude API Anthropic's API for building applications with Claude AI models anthropic.com/api Usage-based Medium

Local Development vs Production Deployment

Local Development

Perfect for experimentation, learning, and personal use. You can run agents on your own machine using tools like Ollama for local LLMs, or connect to cloud APIs for testing.

  • No hosting costs
  • Complete control over data
  • Rapid iteration
  • Privacy-focused
Production Deployment

Required for business applications, team collaboration, and public-facing agents. Involves considerations like scalability, security, monitoring, and compliance.

  • Requires hosting infrastructure
  • Security & compliance needs
  • Monitoring & maintenance
  • Scalability considerations

Ready to build your first AI agent? Start with the problem you want to solve and work backward from there.

→ This page was created with help from Claude AI, July 2025.