AI Summary
5 min readManus AI: Building a DocuSign Killer in One Prompt
The host Greg Eisenberg and guest Min Choi sat down to test Manus AI — the Chinese agentic AI tool that promises to turn a simple prompt into a fully built product. Their goal was ambitious: build a DocuSign competitor, a multi-billion dollar business, from a single request. What they found was a tool that feels like having four employees working simultaneously, but one that still hits hard limits when pushed too far.
What Makes Manus Different
Manus isn't another chatbot. It's a multi-agent system that combines research, planning, coding, and deployment into one workflow. When Min typed "create a DocuSign clone," the system didn't just generate code. It first went to the DocuSign website, scraped the product features, took screenshots, and built a project plan before writing a single line of code.
The interface is deceptively simple — a chat window like ChatGPT — but under the hood, Manus creates a virtual sandbox where it runs command-line executions, browser automation, and tool use simultaneously. Min described it as a multi-agent system with a planner, executor, and analyzer that continuously reflects on its own errors and adjusts course.
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What you'll learn
- 1 (00:00) **Episode Introduction & Setup** - Greg introduces Manus AI as a tool that can turn ideas into automated businesses, and brings on Min Choi to demo building a "DocuSign killer" live.
- 2 (05:00) **Starting the DocuSign Clone Build** - Min gives a simple prompt ("create a DocuSign clone") and Manus begins researching DocuSign's features, planning, and coding autonomously.
- 3 (13:20) **Interrupting and Refocusing Manus Mid-Task** - Greg asks Manus to focus only on the e-signature feature, and Manus adjusts its plan without stopping.
- 4 (16:55) **Researching Greg's Startup Ideas in Parallel** - Min starts a new session to have Manus research Greg's startup ideas and rank them by potential, while the DocuSign build continues.
- 5 (27:00) **Data Privacy Concerns with Chinese AI** - Greg asks about the risks of using a Chinese company's AI tool, and Min advises caution.
- 6 (30:00) **Manus Encounters Critical Errors & Context Limits** - The session crashes with a "critical issue" and later a "context limitation" error, preventing the DocuSign clone from deploying.
- 7 (33:30) **SEO Analysis for Late Checkout Agency** - Greg asks Manus to analyze and improve SEO for his design agency, targeting executives at AI-first companies.
+ Full timestamped outline available in the app
Show Notes
I’m joined by Min Choi to test if Manus AI can replace your AI tech stack. Throughout the episode, we test Manus AI's capabilities by asking it to create a DocuSign clone, research startup ideas, and analyze website SEO.
Timestamps:
• 00:00 - Intro
• 02:18 - What is Manus AI?
• 03:58 - Project 1: DocuSign clone
• 16:54 - Project 2: Research Greg’s top startup ideas
• 27:09 - Security concerns with Manus AI
• 30:16 - Manus bug and reboot
• 32:06 - Deploying DocuSign Clone
• 39:42 - Project 3: SEO Optimization
• 44:14 - Discussion of Manus’s Limitations and Scaling issues
• 48:23 - Project 4: Build a Flight Simulator Video Game
• 49:48 - AI companies facing scaling issues
• 52:05 - Where does Manus excel?
• 53:48 - What Manus was able to accomplish during the episode
Key Points:
• Testing Manus AI by asking it to autonomously research, plan, and execute complex tasks
• Having Manus create a DocuSign clone, research startup ideas, and analyze website SEO
• Manus AI functions as a multi-agent system that can browse websites, write code, and deploy applications with minimal prompting
• The tool has limitations including context windows, deployment issues, and daily usage limits
1) What makes Manus AI different?
Unlike ChatGPT or Claude, Manus is a TRUE AGENT system that:
• Researches, plans, and executes simultaneously
• Controls browsers to gather information autonomously
• Creates full applications from simple prompts
• Deploys working code with minimal guidance
"It's the closest thing to AGI yet" - Min Choi
2) The DocuSign Clone Experiment
With just a 4-WORD PROMPT ("create a DocuSign clone"), Manus:
• Researched DocuSign's core features
• Created a complete project structure
• Built login, document upload & e-signature functionality
• Generated deployable code
All without templates or boilerplate code!
3) Human-in-the-loop capabilities
One of the MOST IMPRESSIVE features:
• You can interrupt Manus WHILE it's working
• Refine requirements mid-process
• Add constraints or pivot direction
When they narrowed focus to "just e-signature features," Manus immediately adjusted its plan without starting over.
4) Multi-agent workflow
Manus feels like having MULTIPLE EMPLOYEES working simultaneously:
• A researcher gathering information
• A PM creating specifications
• A developer writing code
• A marketer analyzing opportunities
It's like an entire team in one tool!
5) Beyond coding: Marketing & Growth
Manus can also:
• Analyze websites for SEO improvements
• Target specific audiences (like executives)
• Create content strategies
• Scrape data for market research
It's not just about building - it's about GROWING your business too.
6) Current limitations
Manus isn't perfect (yet):
• Context length limitations on complex task
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