Check the PHP version a website advertises in its HTTP headers and report whether it is patched against PHP2Shell (October 2026 PHP security releases). Use when the user gives a URL or hostname and asks if it is vulnerable, patched or up to date.
Install
npx skills add masteread/php2shell-checker-claude --skill urlnpx skills add masteread/php2shell-checker-claude --skill url -a claude-code -gnpx skills add masteread/php2shell-checker-claude --skill url -a codex -ggemini skills install https://github.com/masteread/php2shell-checker-claude.git --path skills/urlgh skill install masteread/php2shell-checker-claude urlgit clone --depth 1 https://github.com/masteread/php2shell-checker-claude /tmp/masteread__php2shell-checker-claude
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/masteread__php2shell-checker-claude/skills/url ~/.claude/skills/url # Claude Code
cp -R /tmp/masteread__php2shell-checker-claude/skills/url ~/.agents/skills/url # Codex, Cursor, Gemini CLI, Copilot, OpenCode