System Path Guard
When an agent has shell access on a real machine, a stray write to /etc, a firewall flush, or a `curl | sudo sh` can take the host down. System-level operations need a harder fence than project files.
How to install
Skill (folder)A Skill is a folder with a SKILL.md file that gives Claude extra instructions for a task.
Claude Code (project or global):
# per-project mkdir -p .claude/skills/system-path-guard # ...or for all projects mkdir -p ~/.claude/skills/system-path-guard # copy SKILL.md and any supporting files into that folder
Claude.ai / Claude Desktop:
Customize → Skills → “+” → Browse skills → Install. (Installed skills are view-only; download a copy to customise.)
Claude auto-detects skills in that folder — no restart needed.
Exact steps can vary per project — always double-check the original source. New to this? Read the full install guide →
Source
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