Juraj Macák
Juraj Macák, a man with short light-brown hair in a blue patterned shirt, smiling slightly against a dark blue background

Juraj Macák

Senior Software Engineer · Slovakia

Nine years of Swift on apps people can’t really avoid using: health insurance, pharmacies, an identity card you verify over Bluetooth. These days a good part of that work runs through AI agents, and I write down what holds up and what quietly breaks.

Field notes on shipping iOS apps with AI agents

Claude Code against real repositories, hooks that hold, and the ten minutes of setup that decide whether any of it helps. Measured, not hyped.

More articles

All writing
  1. Two hooks that hold every time, and what breaks them

  2. What survives of prompt engineering

  3. Why your Claude Code sessions burn out so fast

Notes

Now building

Agent Flight Recorder

A recorder for Claude Code sessions that runs on my own machine. It captures hooks, cost and timing, and the transcript, then rebuilds each session as something I can read: the agent tree, the context curve, where the turns went. Rules flag the patterns I keep paying for, like a loop of identical calls. It never sits between me and Claude Code; if it stops, nothing else does.

Projects

09