dsh-test-coverage

After an Agent finishes a coverage-enabled test run, the raw report is often enormous and messy: hundreds of files, thousands of lines of XML or JSON. Pasting it straight into context wastes tokens and is hard to act on. dsh-test-coverage solves this by parsing LCOV, Cobertura, Istanbul (Vitest/Jest), and Go cover.out formats into clean, structured data, so you instantly see overall coverage, which files need tests most, and exactly which lines are uncovered.

The plugin exposes two tools. coverage_report returns the overall line-coverage percentage, a per-file table sorted from lowest to highest coverage, and the list of files that should be patched first. coverage_gaps takes a specific file and returns the exact uncovered line ranges, ready to be targeted by new tests. It is a pure Node implementation with no shell calls, no network requests, and no external services. Large reports are automatically truncated (file table capped at 300 entries, ranges at 400 segments) to keep context windows manageable.

The plugin handles parsing and analysis only; running tests and producing the original coverage report is still up to your projects test commands or other testing plugins. If you work in an Agent-driven TDD, test-patching, or code-review workflow and find coverage reports too noisy, this plugin turns that noise into an actionable checklist.