No one wakes up excited to do a code migration. Deprecated libraries, method version upgrades, infra changes - they happen constantly, they affect dozens of teams, and they always arrive at the worst possible moment. A small technical change somehow becomes months of coordination. Slack threads. Priority negotiation. Manual tracking. Reminders. Many google sheets. For years, I managed cross-team projects at Wix, and migrations were always the hardest part. Not because they'r

The industry has a new obsession: AI skills. The logic seems bulletproof: if you want an AI agent to use your platform, you shouldn’t just give it raw documentation. You should give it a "skill", a curated, condensed, and optimized guide. This will allow the agent to perform tasks on your platform better than if they have to trawl through your docs. Skills are intuitive and trendy, but do they really provide agents with an edge over just using the docs and, if so, in what cas

Intro: The Limits of Prompt Engineering In modern AI agent development, many teams, including ours at Wix , start with an intense focus on prompt engineering , carefully crafting instructions for the LLM. We iterated endlessly on system messages and instruction sets to solve a core problem: our AI scheduling assistant was struggling with vague requests, such as "Schedule a meeting with Jake." This simple sentence triggers a surprisingly complex challenge. The system must iden