expand-coverage

To fix failing vitest coverage thresholds, this skill analyzes coverage JSON reports to identify exact uncovered statements and autonomously generates behavioral tests to close the gaps.

Automated test coverage gap analysis works by parsing coverage JSON reports with jq to extract uncovered statements and branches, then mapping those gaps to behavioral logic branches in the codebase for test generation.

Yes, you need jq installed alongside vitest, because the skill relies on jq to parse coverage JSON reports and perform accurate branch mapping for behavioral test generation.

The best way to resolve pre-commit coverage failures is to invoke this skill, which automatically analyzes the current coverage report, identifies missing scenarios, and generates the necessary test files to meet the required threshold.

No, this tool requires integration with vitest specifically, as it relies on vitest coverage JSON reports and the tea-rags system to perform accurate codebase analysis and branch mapping.