First release. halo-overlay.exe is a one-file Windows build of the Halo overlay renderer — run it with no Python environment; it listens on 127.0.0.1:7333. Drop a settings.json beside it to configure hotkeys/colors/token budget. First launch unpacks to temp (a few seconds); SmartScreen may warn on an unsigned exe. Full tool (MCP server + Claude Code skill) in the repo.