The skill mostly does what it says, but its optional subscription feature installs persistent scheduled jobs and can store an API key on disk without enough warning.
Install only if you are comfortable giving this skill a RedFox API key, letting it query redfox.hk, writing reports under ~/Downloads/QoderReports, and optionally adding a daily scheduled job. Avoid --subscribe unless you understand that it modifies LaunchAgents or crontab; on macOS it may store REDFOX_API_KEY in a plist. Prefer running reports manually with --no-open, and inspect or remove any scheduler entry if you stop using it.