What is mason?
mason is a MCP server by adrianczuczka that generates CLAUDE.md from git history and file sampling, and keeps a concept map linking features and flows to files so agents skip repeated searches. It is listed under Developer tools and has 10 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | adrianczuczka |
| Repository | adrianczuczka/mason |
| Popularity | 10 GitHub stars |
| Category | Developer tools |
| Security | Low risk (96/100) |
| Rank | #1,709 of 4,418 MCP servers; #385 in Developer tools |
| License | MIT |
| Last commit | 2026-10-12 |
| Runs | Locally |
| Language | TypeScript |
| Platforms | macOS, Windows, Linux |
Is mason safe to install?
mason scores 96/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 5 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 |
|---|---|
| Community-built server | Note |
| 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 mason?
- 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/adrianczuczka/mason
- 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 mason -- <command from README> claude mcp add --transport http mason <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 mason for you:
Add the "mason" MCP server from https://github.com/adrianczuczka/mason 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.