Code coverage has tooling. Documentation coverage? Nothing. You ship a library with 50 exports. How many are documented? Which ones are missing @param tags? Nobody knows until a user files an issue. I got tired of guessing.

doccov scans your TypeScript package and calculates documentation coverage like code coverage. Every exported function, class, type, and interface. Every parameter and return type. Measured and reported.

Get a clear coverage report showing exactly what's documented and what's missing. Broken down by file. Broken down by export type. Actionable warnings for every gap.

Add to your pipeline. Fail builds when coverage drops below threshold. Same workflow as code coverage. Documentation becomes a first-class quality metric.

Zero config. Point at your source directory. Get a report. Started as 2000 lines of TypeScript. Now it's 100 lines of prompts. Deleted 95% of the code. The tool got better.