gulp‑coverage is a Gulp plugin that instruments Node.js source files, collects execution data from any test runner (e.g., Mocha or Jasmine), and generates detailed coverage reports (HTML, JSON, LCOV) with block, line, statement and chainable metrics. It’s aimed at JavaScript developers who use Gulp for their build pipeline and need a test‑runner‑agnostic way to enforce coverage thresholds and produce accessible coverage visualisations.