#go

CircleCI's CLI is now a Go rewrite with an MCP server bolted on

CircleCI announced a ground-up Go rewrite of its CLI on July 7, shipped as 1.0 beta with predictable JSON on every command, a browser OAuth login, a debugging TUI and a built-in MCP server for Claude, Cursor and VS Code. It is a small announcement with an outsized effect on anyone who has watched a coding agent flail through unstructured CLI output.