修改文件前的自动备份工具。 当需要修改重要文件时，先备份再修改，改完后让用户检查，确认无误后删除备份。

This skill appears to do what it says, but before installing you should: 1) confirm which exact file paths the agent may act on (avoid unintended system or secret files); 2) ensure the backup directory (default 'backups/') is secure (correct ownership and permissions) so sensitive data isn't exposed; 3) consider storing backups outside world-readable locations and/or encrypting them if they contain secrets; 4) verify how the agent 'detects' modifications in your environment to avoid unexpected automatic actions; 5) prefer explicit, unambiguous user confirmations (the skill expects the exact phrase '可以删除备份' — consider using a clearly auditable confirmation workflow); and 6) be aware of filesystem race/symlink risks (use atomic/careful copy semantics in automation). If you need stronger guarantees, require manual review of the agent's planned cp/rm commands or restrict the skill to operate only on a narrow, user-approved path list.

Type: OpenClaw Skill Name: file-backup Version: 1.0.0 The skill is a safety utility designed to create file backups before modifications are made, using standard shell commands like 'cp' and 'rm'. It includes explicit instructions in SKILL.md for the agent to wait for user confirmation before deleting any backups, and it lacks any indicators of data exfiltration, unauthorized execution, or malicious intent.