SigmaQuery is a focused search engine for SigmaHQ detection rules, letting security teams find, compare, and reuse Sigma logic instantly. It indexes rule content, metadata, MITRE mappings, and examples for precise full-text and semantic search. Built-in filters, similarity scoring, and rule previews make it easy to locate variants, inspect YAML, and export snippets for SIEMs. Ideal for SOC analysts, threat hunters, and detection engineers who need fast, reliable rule discovery and provenance.