MCP Server that bridges LCOV coverage reports to AI agents
MCP Server that bridges LCOV coverage reports to AI agents
MCP server that bridges LCOV coverage reports to AI agents. It runs locally and gives agents precise, structured visibility into test coverage — which lines are hit, which branches are missed, and where to focus testing efforts.
LCOV is a standard text format for code coverage data. It records which lines, functions, and branches were executed during tests. The format is widely supported by test runners (Vitest, Jest, Istanbul, etc.) and is typically written to lcov.info. Each record describes coverage for a source file: line hits, branch hits, and function hits.
All MCP tools (get_coverage_overview, list_uncovered_regions, get_annotated_source) require these parameters in every call. They identify which coverage report to load and how to resolve source file paths. | Parameter | Requirement | |-----------|-------------| | lcov_path | Must be an absolute path. The file must exist on disk. | | project_root | Must be an absolute path. In
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Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| get_coverage_overview | Aggregated and per-file coverage stats (lines, functions, branches %). Supports filtering by directory prefix, threshold, and sort order. |
| list_uncovered_regions | Uncovered lines (merged into ranges) and uncovered branches for a specific file. |
| get_annotated_source | Full source file annotated line-by-line with [COVERED], [NOT COV], or [NO DATA]. Supports start_line/end_line windowing. |
{
"mcpServers": {
"analyze-coverage": {
"command": "npx",
"args": [
"-y",
"@sofia-open-source/analyze-coverage-mcp"
]
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
All MCP tools (get_coverage_overview, list_uncovered_regions, get_annotated_source) require these parameters in every call. They identify which coverage report to load and how to resolve source file paths. | Parameter | Requirement | |-----------|-------------| | lcov_path | Must be an absolute path. The file must exist on disk. | | project_root | Must be an absolute path. In
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