Every HA notification the add-on raises now has a title of at most 5 everyday words and a one-sentence body; a red alarm may use three so no action is lost. The texts live in app/messages.py, the rule in STYLE.md, and the detail that moved out in DOCS.md "Notifications", which each body links to. No notification_id, trigger or cadence changed. test_messages.py enforces the rule on every notification, fails any notification worded outside app/messages.py, and ratchets the kinds not yet rewritten (rows, banners, refusals, logs, options) through a shrinking allowlist of 200. Six tests re-pinned from prose to meaning. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01LyR88rXETvwhTgx6yHE39p