From Workflows to AI Agents: My Journey Through the Automation Evolution

Published On: May 30, 2025

Remember when automation meant setting up simple “if this, then that” rules? Those days feel like ancient history now! These days every major player—OpenAI, Google, Anthropic, and Mistral are rolling out agent SDKs. Meanwhile, n8n, a no-code/low-code workflow builder, continues to be a favorite for indie developers and automation pros.

But as agent frameworks become more powerful, it’s fair to ask: is n8n enough? Or do you need an agent SDK? This is something we’ve been thinking about a lot at Brown Mind, where we help teams move from simple automations to intelligent agents. Let’s break this down in a way that makes sense for anyone studying AI systems or working on applied AI solutions.

The Lightbulb Moment That Changed Everything 💡

Picture this: I’m sitting at my desk at 2 AM, debugging yet another n8n workflow that’s supposed to qualify leads automatically. It worked perfectly… until it didn’t. A prospect sent an email that was slightly different from what I’d programmed for, and my beautiful automation just gave up.

That’s when it hit me, “I wasn’t building smart systems”. I was building elaborate domino chains that fell apart the moment someone sneezed differently!

Workflow to AI Agent

Decoding the AI Agent Mystery 🔍

So what exactly makes an AI agent different from your typical chatbot? Think of it this way:

A chatbot is like a really smart parrot, it responds brilliantly to what you say, but it can’t plan ahead or use tools.

An AI agent is like hiring a super-powered intern, one that can research competitors online, summarize findings, remember previous conversations, and even decide which tools to use for each task.

The magic happens when these agents can:

Plan their own steps toward a goal
Use external tools and APIs intelligently
Store and recall important information
Adapt when things don’t go as expected

The 5 Levels of AI Intelligence (And Where You Probably Are) 📊

Here’s something I wish someone had explained to me earlier—not all “AI automation” is created equal. I’ve mapped out five distinct levels:

Level 1: Tool-Using LLM 🔧 What it does: Calls an AI model within a fixed workflow Perfect for: Email summarization, content generation My take: This is where most people start, and n8n absolutely shines here!

Level 2: Reactive Agent 🎯

What it does: Uses memory and conditional logic to respond intelligently Perfect for: Smart auto-replies, context-aware customer service My take: n8n can handle this with some clever workflow design

Level 3: Autonomous Agent 🚀 What it does: Plans and executes multi-step tasks independently Perfect for: Competitor research, content pipeline automation My take: This is where agent SDKs start to outshine traditional workflows

Level 4: Multi-Agent System 👥 What it does: Multiple specialized agents collaborate like a team Perfect for: Complex content production, research projects My take: Now we’re in serious agent SDK territory!

Level 5: Goal-Oriented System 🎯 What it does: Solves complex, long-term problems with feedback loops Perfect for: Strategic planning, adaptive business processes My take: Custom agent frameworks are your best bet here

Why I Still Love n8n (And When It’s Perfect) ❤️

Don’t get me wrong—n8n isn’t going anywhere! There’s something beautifully satisfying about building visual workflows that just work. Here’s when I still reach for n8n:

The Sweet Spot Scenarios

Lead qualification pipelines where you know the exact steps
Appointment booking systems with predictable user flows
Data processing tasks that follow clear rules
API integrations that need reliable, repeatable processes
MVP development when you need to ship fast and iterate

I recently built a voice-based lead handling system using n8n that combines Deepgram for speech-to-text and ElevenLabs for text-to-speech. The workflow was crystal clear, the logic was predictable, and it deployed in hours, not days.

The Great Agent SDK Awakening 🌅

But then came the day I needed to build something that could research competitors and adapt its strategy based on what it found. That’s when n8n hit its limits, and I discovered the power of agent SDKs.

The Game Changing Moment

Instead of manually programming every possible scenario, I could simply tell an agent: “Research our top 5 competitors and analyze their pricing strategies.”

The agent would then:

Decide which search tools to use
Navigate to competitor websites
Extract relevant pricing information
Synthesize findings into actionable insights
Adapt its approach if it hit roadblocks

This isn’t science fiction—this is happening right now with frameworks like CrewAI, LangChain, and the new OpenAI SDK!

📈 Autonomy vs. Task Complexity

 Autonomy
|                    Agent-SDKs
|                  /
|               /
|            /
|       n8n
|     /
|  /
|---------------------------->
   Task-Complexity

The Showdown: Workflow vs Agent 🥊

Let me paint you a picture with a real scenario I faced last month:

The Challenge: Analyze competitor content strategies

The n8n Approach

Manually configure web scraping endpoints
Pre-define which websites to visit
Hardcode content extraction rules
Build separate workflows for each competitor
Hope nothing changes on their websites

The Agent SDK Approach

Give the agent a simple goal: “Analyze competitor content”
Watch it intelligently browse websites
See it adapt to different site structures
Get contextual analysis that considers the full picture
Enjoy automatic retry and error handling

The agent approach took less time to build and delivered better results. Mind = blown! 🤯

Making the Switch: My Personal Decision Framework 🤔

After building systems at both ends of the spectrum, here’s my go-to decision framework:

Stick with n8n when

Your process has predictable, well defined steps
You need a visual representation of your workflow
You’re building an MVP or proof of concept
Your team prefers no-code/low-code solutions
The task complexity is low to moderate

Graduate to Agent SDKs when

You find yourself constantly updating workflows for edge cases
The task requires dynamic decision making
You need the system to collaborate across multiple roles
Adaptability is more important than predictability
You want to set goals, not micromanage steps

🔬 Comparison Table

Feature / Capability	n8n	Agent SDK
Visual Builder	✅	❌
API Integration	✅	✅
LLM Integration	✅	✅
Memory Support	Manual	Automatic
Tool Selection	❌	✅
Goal-Based Planning	❌	✅
Multi-Agent Collaboration	❌	✅
Best for MVPs	✅	❌
Best for Autonomy	❌	✅

Pro Tips from the Trenches 💪

Start Simple, Think Big: I always begin with n8n for new ideas. It’s faster to prototype and easier to explain to stakeholders.

Embrace the Hybrid Approach: Sometimes I use n8n to handle the predictable parts and call agent SDKs for the complex reasoning. This hybrid approach has become a go-to in our client work.

Don’t Fear the Learning Curve: Agent SDKs seem intimidating, but the investment pays off when you need true intelligence in your systems.

Monitor and Iterate: Agents can surprise you (in good and bad ways). Build in monitoring from day one.

The Future Is Collaborative 🚀

Here’s what excites me most: we’re not choosing between workflows and agents, we’re learning when to use each tool in our arsenal.

I recently built a content production system where:

n8n handles content scheduling and distribution
An agent researches trending topics
Another agent writes the first draft
A quality control agent reviews and refines
Back to n8n for publishing and analytics

It’s like conducting an orchestra where some musicians follow sheet music (workflows) while others improvise (agents)!

Your Next Move 🎯

If you’re just starting your automation journey, begin with n8n. Learn to think in workflows, understand API integrations, and build your automation intuition.

But when you find yourself saying, “I wish this system could just figure it out,” that’s your cue to explore agent SDKs.

The future of AI automation isn’t about replacing one tool with another, it’s about knowing which tool fits each job. And honestly? That’s what makes this space so incredibly exciting to work in!

Need help figuring out where your project fits? Reach out. We can map your idea to the right architecture and build AI systems that scale smartly. 🚀