I built a Jira CLI for my AI agents. My team thinks I should have used MCP

I recently put together a tiny open-source tool: a non-interactive, JSON-first Jira CLI tailored for AI agents. I called it the "kubectl of Jira." The idea is simple: it’s a stateless binary that outputs clean JSON so agents can pipe data straight into jq, grep, or wc without choking on interactive menus or ugly ASCII tables.

I shared it in our team chat, expecting a few code comments. Instead, I accidentally started a argument: In the age of LLMs, why are we still building CLIs? Why aren't we just using MCP servers?

Here is why my team thinks I'm living in the past, and why I still think the CLI wins.

The Argument for MCP (What my team says)

My colleagues made some good points.