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PHP_CodeSniffer rules (sniffs) to enforce WordPress coding conventions
PHP Compatibility check for PHP_CodeSniffer
Slevomat Coding Standard for PHP_CodeSniffer provides many useful sniffs
phpcs-security-audit is a set of PHP_CodeSniffer rules that finds vulnerabilities and weaknesses related to security in PHP code
PHP_CodeSniffer ruleset to enforce WordPress VIP coding standards.
cs2pr - Annotate a GitHub Pull Request based on a Checkstyle XML-report within your GitHub Action
Find undefined and unused variables with the PHP Codesniffer static analysis tool.