What is crapkit?
crapkit is a MCP server by JeanFrancoisGagne that read-only per-function CRAP scores (complexity and coverage) that point to the worst function to fix next, with uncovered lines and near-duplicates. It is listed under Developer tools and has 1 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | JeanFrancoisGagne |
| Repository | JeanFrancoisGagne/crapkit |
| Popularity | 1 GitHub stars |
| Category | Developer tools |
| Security | Low risk (100/100) |
| Rank | #3,265 of 4,418 MCP servers; #673 in Developer tools |
| License | MIT |
| Last commit | 2026-10-06 |
| Runs | Locally |
| Language | Python |
| Platforms | macOS, Windows, Linux |
Is crapkit safe to install?
crapkit scores 100/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 6 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Published by the service itself | Pass |
| Runs on your machine only | Pass |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install crapkit?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/JeanFrancoisGagne/crapkit
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add crapkit -- <command from README> claude mcp add --transport http crapkit <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs crapkit for you:
Add the "crapkit" MCP server from https://github.com/JeanFrancoisGagne/crapkit to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.