Drew Breunig

Harnesses manage the systems around agents, from the session, to the company, to the domain.

Keep your context clean by keeping your agent's skills and tools in check.

Stewart Brand's Pace Layers framework reveals why AI's speed is straining the slower systems it depends on for support.

The plain-English prompt that makes prototypes effortless turns out to be a poor way to specify how a system should behave, and the bill arrives slowly, disguised as ordinary progress, until the application can barely move.

When an agent can explain anything, should we keep writing docs for humans?

OpenAI winding down fine tuning is an interesting development and one to watch.

Guidelines for programming when code is cheap.

Is security spending more tokens than your attacker?

Context engineering in action.

Moving from clones to reimaginings.