Most AI agents live in their own window. You open it, explain the context, copy in the bug report, paste the answer back somewhere else. At Pachca we build a team chat app, so we tried the opposite: an agent that lives where the work is already being discussed. Someone @mentions it in a thread, and it reads the conversation, picks the tools it needs, does the work and replies in the same thread. Here's how it's put together, and the guardrails we added so that a program with tools and API ...