What are AI Agents? Ultimate Guide to Autonomous Agents and CrewAI (2026)

import os
from crewai import Agent, Task, Crew, Process
from langchain_community.tools import DuckDuckGoSearchRun

# 0. Configuration (You need an OpenAI or Anthropic key)
os.environ["OPENAI_API_KEY"] = "sk-..."

# 1. Tools
# We give agents the ability to search on Google
search_tool = DuckDuckGoSearchRun()

# 2. Defining the Agents (The Employees)
researcher = Agent(
    role='Senior Tech Analyst',
    goal='Discover the latest and most impactful AI trends',
    backstory="""You are a veteran analyst with a nose for news that 
    will change the market. You ignore hype and focus on facts.""",
    verbose=True, # Shows the agent's thinking in the terminal
    allow_delegation=False,
    tools=[search_tool] # He can use Google!
)

writer = Agent(
    role='LinkedIn Content Strategist',
    goal='Write posts that go viral based on technical facts',
    backstory="""You transform complex subjects into engaging 
    narratives. You use formatting, emojis, and mental triggers.""",
    verbose=True,
    allow_delegation=True
)

# 3. Defining the Tasks (The Work)
research_task = Task(
    description="""Search for the top 3 news stories about 'AI Agents' 
    in the last 24 hours. Identify companies, launches, and controversies.""",
    agent=researcher,
    expected_output="A 3-paragraph technical summary with sources."
)

writing_task = Task(
    description="""Based on the analyst's research, write a LinkedIn post. 
    The post should have a strong hook, 3 bullet points, and 
    a call to action (CTA) at the end.""",
    agent=writer,
    expected_output="A Markdown-formatted text ready to publish."
)

# 4. Forming the Team and Running
tech_news_crew = Crew(
    agents=[researcher, writer],
    tasks=[research_task, writing_task],
    process=Process.sequential, # One works after the other
    verbose=2
)

print("### Starting Agent Morning Meeting ###")
result = tech_news_crew.kickoff()

print("######################")
print("## FINAL POST GENERATED ##")
print("######################")
print(result)