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posix-shell-validator

97 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By a5c-ai/babysitter (GitHub) · coding · 1,903 stars · scanned at commit feb68ab

Validate scripts for POSIX compliance with portability checks, bashism detection, and cross-platform compatibility.

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'posix-shell-validator' ] || [ -L ~/.agents/skills/'posix-shell-validator' ]; then echo 'A skill folder named posix-shell-validator already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/a5c-ai/babysitter' "$d" && git -C "$d" checkout --quiet 'feb68abe397acc14f32b34984975c48fedba2b33' -- 'library/specializations/cli-mcp-development/skills/posix-shell-validator' && mkdir -p ~/.agents/skills && cp -R "$d"/'library/specializations/cli-mcp-development/skills/posix-shell-validator' ~/.agents/skills/'posix-shell-validator' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'posix-shell-validator' ~/.claude/skills/'posix-shell-validator' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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