The interactive graph lives at .ua/knowledge-graph.json. It covers the MCP server, the single Thunderbird add-on, the loopback bridge, approval flow, composer, tests and packaging. Open it with the Understand Anything dashboard command /understand-dashboard from this repo. You can also start the version-pinned standalone viewer without opening a browser:

npx --yes https://github.com/Egonex-AI/Understand-Anything/releases/download/v2.9.0/understand-anything-viewer.tgz . --no-open

The viewer prints a local URL with a temporary access token. Open that URL in your own browser; do not publish it.

The dashboard's guided tour starts at the security boundary and follows an agent tool call through the local bridge to Thunderbird. The layers group related files, while imports and other edges show code and runtime links. The README has a smaller diagram for a quick first read.

After a verified code change, refresh once from this repo root:

node .ua/refresh.mjs

The command uses the installed Understand Anything plugin's scanner, import resolver, structural extractor and fingerprint builder. It updates the graph, metadata and the incremental baseline. Install and build the plugin first if the command says it is unavailable. The plugin's autoUpdate setting also prompts Claude after commits when its hook is active; the repo's AGENTS.md gives Codex the same refresh step. Neither path runs after every keystroke.