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28 posts spanning 2025–2026

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ai-agents · llm · production-systems

My AI Agent Passed Every Check. 67% of It Was Wrong.

My AI agent's report passed every validation check. 67% of its facts were wrong. Here are 3 detection layers I built ...

March 28, 2026

ai-agents · llm · production-systems

Why AI Agents Hallucinate: Search Returns Headlines, APIs Fix It

My AI agent got 10 of 15 financial claims wrong using web search. Switching to structured APIs fixed every one. Here'...

March 21, 2026

ai-agents · llm · production-systems

Why Local LLMs Hallucinate When Your AI Agent Has Search

Local models got 10 of 15 financial claims wrong, even with web search. The root cause: search returns headlines, not...

March 14, 2026

ai-agents · llm · production-systems

The Production AI Agent Playbook: 8 Disciplines for Reliable LLM Systems

A practical playbook for building AI agents in production. Architecture, error handling, monitoring, security, and co...

March 11, 2026

ai-agents · llm · observability

Monitoring AI Agents in Production: 4 Layers That Actually Catch Failures

Four monitoring layers I added to my AI agent after a 709K-character runaway slipped past every health check. Here's ...

March 07, 2026

ai-agents · llm · production-systems · python

How to Test AI Agents Before They Break Production

Unit tests aren't enough for AI agents. Learn the three testing layers that prevent hallucinations and tool failures ...

February 28, 2026

mcp · security · python · ai-agents

MCP Server Security: 8 Vulnerabilities I Found and Fixed

SSRF, prompt injection, path traversal: I audited my MCP server (3,000+ downloads) and found 8 vulnerabilities. Every...

February 25, 2026

aws · serverless · cost-optimization

How to Reduce AWS Lambda Costs: 10 Practical Tips

10 practical tips to cut your AWS Lambda bill, from hidden CloudWatch costs to memory right-sizing, Graviton2, and kn...

February 22, 2026

mcp · python · ai-agents

How to Build an MCP Server in Python with FastMCP 3.0 (Full Code)

Notes MCP server in Python with FastMCP 3.0: tools, resources, prompts, SQLite persistence, and in-process testing. U...

February 22, 2026

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