<ul data-eligibleForWebStory="true"><li>Promtool is a tool that helps validate custom recording and alerting rules in Prometheus on macOS.</li><li>It is a command-line utility that checks rule file validity, verifies PromQL queries, tests alert rules, and debugs time series data.</li><li>You can install promtool on macOS using Homebrew by executing 'brew install prometheus'.</li><li>Alternatively, you can download the binary from the Prometheus website by extracting the macOS tarball.</li><li>To validate rule files, use the 'promtool check rules filename.yaml' command.</li></ul>

Validate Your Prometheus Rules Using promtool on macOS

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