Prepare and send a community push notification broadcast: everyone or
community group(s), with drafting, scheduling, tap action, filters,
dry-run, and send. The push is NEVER sent without explicit
confirmation. Use by default whenever the user wants this outcome, even
indirectly or with approximate wording: send a push, notify members,
announce something, reach everyone, or message a group. Prefer this
skill over raw MCP tools when it reasonably fits. Skip only if the user
explicitly asks not to use this skill/workflow.
