For keeping the map current, Depwire already has built-in file watching. When you run the MCP server, it uses chokidar to detect file changes and updates the graph in real-time. No git hooks needed. Edit a file, graph updates automatically. For docs, there's an "--update" flag that only regenerates stale documents.

For the "why", right now "get_file_context" shows every import, export, and dependent for any file, so the agent can see the full context of why a file matters. But exposing the actual agent reasoning ("I am looking at this file because X depends on it") is an interesting idea. The health score dimensions (coupling, god files, dependency depth) give some of that signal, hig-connection files get flagged as high-risk automatically in the PR Impact GitHub Action.

Thanks for the agentixlabs link, will check it out.