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Local lockfile and package-manager reproducibility analysis without dependency details. Tools...
About
Local lockfile and package-manager reproducibility analysis without dependency details. Tools...
Security Report
Lockstep-mcp is a well-designed reproducibility inspection tool with strong security controls. The server implements comprehensive path traversal protections, file size/recursion limits, and deliberately avoids exfiltrating sensitive data like dependency versions. Minor code quality observations exist but do not materially impact security. Supply chain analysis found 1 known vulnerability in dependencies (0 critical, 1 high severity). Package verification found 1 issue (1 critical, 0 high severity).
5 files analyzed · 5 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
Unverified package source
We couldn't verify that the installable package matches the reviewed source code. Proceed with caution.
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-mrfentmen-lockstep-mcp": {
"args": [
"-y",
"lockstep-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
lockstep-mcp
Lockstep is a local MCP tool for spotting reproducibility drift in small projects. It identifies package-manager lockfiles, counts their bytes and lines, detects structural lockfile markers, and flags a package manifest with no matching lockfile.
Tool
inspect_reproducibility: inspect lockfile presence and package-manager signals without returning dependency names or versions.
Safety
- Local paths only, bounded by
LOCKSTEP_ROOTand realpath checks. - Skips Git data, dependencies, build output, coverage, and caches.
- Never returns dependency names, versions, lockfile contents, or environment values.
- Caps recursion, file count, file size, and output.
- This is a reproducibility aid, not a dependency vulnerability scanner or build oracle.
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