Agentic Systems: Building Production-Ready AI with MCP Servers

[juliamuiruri4]

Welcome to the Agentic Systems discussion hub! 🎉

This is a dedicated space for our community to collaborate, learn, and share everything related to building production-ready agentic systems - learning how to architect agents that are useful, reliable and secure. The burger ordering system is your blueprint for real-world agent design.

Use This Discussion For:

• 💬 Setup & Troubleshooting – LangChain.js setup, MCP server integration
• 🏗️ Agent Workflow Design – Structuring agent logic, handling multi-step reasoning, state management
• 🔧 MCP Server Development – Creating custom MCP servers, tool definitions, API integration patterns
• 🛡️ Reliability & Security – Error handling strategies, validation, access control, audit trails
• 📝 API Architecture – Building scalable agent APIs, request/response patterns, rate limiting
• 📚 Real-World Patterns – Share best practices, lessons learned, and production deployment tips

Getting Started:

New to building AI Agents? Start here:

Build, Scale and Govern AI Agents Livestream
The Burger Ordering Agent Quest: Comprehensive codeTour of an E2E Burger Ordering Agent implementation with LangChain.js

Community Guidelines:

• Be respectful and inclusive
• Search existing threads before posting duplicates
• Share code snippets and error logs when asking for help
• Help others! Your expertise matters
• Have a question, project or insight to share? Start a new reply or thread below!

Discussion host:

[BY3D]

Hi, is anyone running into trouble with npm.cmd start for the mcp-agent-langchainjs project? This is what I get when I try to run it:

> mcp-agent-langchainjs@1.0.0 start
> run-on-output -n 'ready' -p 'burger.*lock lease,agent.*lock lease' concurrently "npm:start:*" --kill-others
...
'lease' is not recognized as an internal or external command,
operable program or batch file.
Failed to start command: Command not found

I did npm.cmd install and npm.cmd build. Ollama is running in the background and I created the .env file. So I'm not sure what the lease command is. I'm on Windows 11, using Visual Studio Code, and installed PowerShell 7. The previous quests have been working for me. I can post my question on the Discord if it's better suited there.