What problem does it solve? Pull requests often fail coverage requirements because new or changed lines lack tests, and Codecov's CI status alone does not reveal which lines are uncovered. This Skill reads the full Codecov report on a PR, identifies the exact uncovered lines, and coordinates test creation so the PR meets the project's patch coverage requirement. ## Core Features & Use Cases - Multi-source coverage collection: Gathers data from Codecov commit statuses (codecov/patch, codecov/project), the codecov[bot] PR comment, and line-level review comments via the GitHub API. - Accurate gap assessment: Trusts the PR comment's patch coverage percentage over CI status, and reads the project's coverage requirement from AGENTS.md or CLAUDE.md, defaulting to 100% patch coverage. - Delegated test creation: Launches a coder sub-agent to write tests for uncovered lines following existing test patterns, then verifies the updated Codecov report after CI re-runs. - Use Case: A PR shows codecov/patch passing at 86% but the project requires 100%. The Skill parses the codecov[bot] comment, finds 13 missing lines across two files, delegates targeted tests, and confirms coverage reaches the threshold. ## Quick Start Check the Codecov report on my current pull request and add tests for any uncovered lines.