Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Mailcheck concepts, best practices, and implementation patterns.

This skill appears coherent and low-risk: it just prints local documentation and does not ask for credentials or perform network I/O. Minor non-security issues: the script's internal VERSION is 2.0.2 while registry metadata is 2.0.3 (cosmetic), and the help heredoc uses single quotes so $VERSION won't expand (display quirk). If you allow the agent to execute this skill, it's safe in normal contexts, but as with any skill that runs code, consider running it in a sandbox or reviewing the included script before giving it permission to execute on sensitive hosts.

Type: OpenClaw Skill Name: mailcheck Version: 2.0.3 The 'mailcheck' skill is a purely informational reference tool that provides static documentation about devtools concepts. The shell script (scripts/script.sh) only uses heredocs to output plain text and contains no network calls, file system modifications, or credential access.