linux-system-health

This skill appears to do what it says: run local OS diagnostics using standard Linux tools and a bundled shell script. Before installing or running it, consider the following: - Review the included scripts yourself; they are plain Bash and do not contain hidden network exfiltration or external downloads. - The script reads kernel/journal/log files (dmesg, journalctl -k, /var/log/*, /proc/*) and checks user cache paths (/root/.cache and /home/*/.cache) for Chromium — avoid running it where those files are sensitive unless you approve. - It performs outbound network probes for DNS/resolution tests (resolves github.com and attempts TCP/53 to configured nameservers). If your environment restricts outbound network access, be aware of these probes. - It creates and immediately removes a single temp file (/tmp/.oc_write_test) to verify writability — this is the only write operation noted. - The script is intended to be run as root/sudo for complete results; only allow privileged execution in environments where you trust the skill and its operator. - If you need stronger guarantees, run the script manually on a staging host first, or run it under an account with limited access to sensitive files. Confidence in this assessment is high based on the provided SKILL.md and script; the verdict could change if additional files not provided here included network callbacks, credential collection, or remote download/install behavior.