Show HN: Archwhere – work alongside AI coding agents on an architecture map

Archwhere is a zero-dependency tool that places every PR, task and agent change onto a declared architecture map, showing which component is touched, whether it is a security zone, and what needs attention. Agents maintain the map as a condition of merging, with a SKILL.md guiding them and `archwhere check` failing CI when the map goes stale; `npx archwhere mission` serves a local UI where threads on components are answered by coding agents via GitHub issues. It works with Claude or any agent that can see GitHub, and is MIT licensed.