Blog

What I learn, written down.

Articles on AI in production, search and products. When an idea is easier to grasp by playing with it, the article includes a demo.

AIOct 17, 2026 · 6 min read

Giving an AI agent real tools without handing over the keys

A useful agent acts: it searches, queries a database, sends messages. How I give it powerful tools while bounding what a prompt injection can do, with an interactive lab.

AI agents
Tool use
Security
Prompt injection
AI in production

AIOct 17, 2026 · 5 min read

Testing an AI agent: what unit tests can’t see

Evals
LLM-as-a-judge
Testing

AIOct 16, 2026 · 8 min read

Hybrid search, explained by playing with it

RAG
Hybrid search
Embeddings

What I learn, written down.

Giving an AI agent real tools without handing over the keys

Testing an AI agent: what unit tests can’t see

Hybrid search, explained by playing with it

Let’s build something.