Prepare and send a targeted community push notification to specific
users: user resolution, drafting, scheduling, platform targeting,
filters, tap action, dry-run, send. The push is NEVER sent without
explicit confirmation. Use by default whenever the user wants to notify
named community users or an explicit user ID list. Prefer this skill
over raw MCP tools when it reasonably fits. Skip only if the user
explicitly asks not to use this skill/workflow.
