Posted inAI & LLMs AI Agents in PHP Series Chatbots & Support Bots Evaluation & Deployment MySQL & Databases PHP Tutorials
Evaluate, Control Cost, and Ship
Over seven parts, Nimbus has gone from a chatbot that could only talk to an…
Posted inAI & LLMs AI Agents in PHP Series AI Safety & Guardrails Chatbots & Support Bots MySQL & Databases PHP Tutorials Prompt Engineering
Guardrails and Human Approval
Nimbus can now read orders, check policies, search documents, open tickets and remember conversations. It's…
Posted inAgent Memory AI & LLMs AI Agents in PHP Series Chatbots & Support Bots MySQL & Databases PHP Tutorials
Memory: Conversations That Remember
Here's a perfectly normal support conversation: Customer: Can I get a refund for order #1043?…
Posted inAgentic RAG AI & LLMs AI Agents in PHP Series Chatbots & Support Bots MySQL & Databases PHP Tutorials Retrieval-Augmented Generation
RAG + Tools Together
Ask the Part 4 version of Nimbus this: "I was charged twice for order #1043.…
Posted inAgent Loop AI & LLMs AI Agents in PHP Series Chatbots & Support Bots MySQL & Databases PHP Tutorials
The Agent Loop: Thinking in Steps
At the end of Part 3, Nimbus got close. A customer asked for a refund…
Posted inAI & LLMs AI Agents in PHP Series Chatbots & Support Bots MySQL & Databases PHP Tutorials Prompt Engineering Tool Design
Giving Nimbus Its First Real Tools
After Part 2, Nimbus can look up an order through real tool calling. That's useful,…
Posted inAI & LLMs AI Agents in PHP Series Chatbots & Support Bots MySQL & Databases PHP Tutorials Tool Calling
Tool Calling in Plain PHP
In Part 1, our mini agent worked because we asked nicely: "Reply with JSON only,…
Posted inAI & LLMs AI Agents in PHP Series Chatbots & Support Bots MySQL & Databases PHP Tutorials What Is an AI Agent
From Answering to Acting: What Makes an AI Agent
A customer opens the Nimbus chat window and types: "Hi, I bought the Pro annual…
Posted inAI & LLMs Local News RAG - Prompts PHP Tutorials Prompt Engineering RAG Tutorial Series Retrieval-Augmented Generation
Bonus 2 — Local News RAG: Recency-Aware Answers & Multi-Source Citations
The last piece Bonus 1 left us able to fetch, dedup, and retrieve today's news.…
Posted inChatbots & Support Bots Local News RAG - Build MySQL & Databases PHP Tutorials RAG Tutorial Series Retrieval-Augmented Generation
Bonus 1 — Local News RAG: Pointing the Pattern at Live Data
Same skeleton, live target You just built a support bot over static documents. This bonus…