Teaching Claude Code to message my colleagues in my own voice

I'm part of a small infrastructure team, and a surprising amount of my day is short messages: "can you look at this MR", "is staging free", "did the migration finish". I already work with Claude Code most of the day, so I wanted it to send those messages for me. The first drafts were the problem. I'd ask for a one-line question, and the agent would write five paragraphs: what the MR changes, why, which files it touches, the risks, a bulleted list of "key considerations", and a closing "let me k