Codecov Coverage Checks

Name: codecov
Rating: 87
Author: turquoisedragon2926

Query Codecov data to check coverage before pushing, find untested code, and compare branches.

Prerequisites

Ensure the codecov MCP server is configured:

json

{
  "mcpServers": {
    "codecov": {
      "command": "npx",
      "args": ["codecov-mcp-server"],
      "env": { "CODECOV_API_TOKEN": "..." }
    }
  }
}

Common Workflows

Check Repository Coverage

code

Use codecov_get_coverage_totals with owner and repo.
Report: coverage percentage, lines covered/missed, file count.

Check File Coverage

code

Use codecov_get_file_coverage with owner, repo, and path.
Report: coverage percentage, uncovered line numbers, total lines.
Suggest specific tests for uncovered lines if requested.

Pre-push Coverage Check

•Identify changed files from git status/diff
•For each changed file, call codecov_get_file_coverage
•Report files with <80% coverage
•Suggest which files need tests before pushing

Compare Branch Coverage

code

Use codecov_compare_coverage with owner, repo, and base/head branches.
Report: coverage change (+/-%), files with decreased coverage, patch coverage.

PR Coverage Review

code

Use codecov_compare_coverage with owner, repo, and pullid.
Report: overall coverage change, files with coverage drops, untested new code.

Find Low Coverage Areas

code

Use codecov_get_coverage_tree with owner, repo, and optional path/depth.
Report: directories/files sorted by coverage (lowest first).

Tool Reference

Tool	Use For
`codecov_get_coverage_totals`	Overall repo coverage
`codecov_get_file_coverage`	Specific file line coverage
`codecov_get_coverage_tree`	Browse coverage by directory
`codecov_compare_coverage`	Compare commits/branches/PRs
`codecov_list_repositories`	Find repos with coverage
`codecov_get_repository`	Repo details and config
`codecov_list_commits`	Commits with coverage data
`codecov_list_pulls`	PRs with coverage info

Output Format

Keep coverage reports concise:

code

## Coverage: owner/repo

**Overall**: 78.5% (1,234/1,571 lines)

### Files needing attention
- src/api/handler.ts: 45% (lines 23-45, 67-89 uncovered)
- src/utils/parser.ts: 62% (lines 12-18 uncovered)

### Recommendation
Add tests for handler.ts error paths before pushing.