Ask HN: Workflow Automation vs AI Agents?

A while ago, workflow automation tools (Zapier, Make, n8n) were booming. Now AI agents start eating into that space, OpenAI's Workspace Agents, Lindy, Claude's agentic features, etc.

i understand both have tradeoffs, but i'm trying to understand real-world usage:

1. why workflow automarion over AI Agents? What does it still do better?

2. if you've using AI agents, what made you switch? What do you trust them with?

3. why not use either of them?

feel free to give your opinion, im curious