The skill is a stock-analysis and notification tool, but it includes root-level scheduled execution and defaults that can send stock/watchlist data to a hard-coded WeChat recipient.
Install only if you are prepared to audit and edit it first. Replace every USER_ID and holdings/watchlist value, verify the remote package source or avoid the downloader, and review/remove the root cron and logrotate files if you do not want persistent automatic WeChat stock notifications. Treat the trading recommendations as informational, not personalized financial advice.