Claude Code Mastery MCP Server
by TheDecipheristThe complete guide to Claude Code: CLAUDE.md, hooks, skills, MCP servers, and commands
Claude Code Mastery is an open-source mcp server by TheDecipherist, written mainly in Shell, with 558 GitHub stars and the MIT license. Its code was last updated May 7, 2026.
Scan summary: scanned Nov 5, 2026 at commit 0f05fa1. Seen able to read environment and secrets. Scan policy
What Claude Code Mastery can touch
- Our checks did not find this. The tool may still do it.Run shell commandsNot seen in this scan
- Our checks did not find this. The tool may still do it.Run dynamic codeNot seen in this scan
- Our checks did not find this. The tool may still do it.Read or write filesNot seen in this scan
- Seen in this scan, either in the code or while it ran.Read environment and secretsFound in the code by our scan
- Our checks did not find this. The tool may still do it.Control a web browserNot seen in this scan
- Our checks did not find this. The tool may still do it.Connect to databasesNot seen in this scan
- Our checks did not find this. The tool may still do it.Read or send messagesNot seen in this scan
- Our checks did not find this. The tool may still do it.Touch money or tradingNot seen in this scan
- Our checks did not find this. The tool may still do it.Connect to the internetNot run in this scan
"Not seen" means our checks did not find it, and the tool may still do it. Covers commit 0f05fa1, Nov 5, 2026. See the scan policy.
Before you install Claude Code Mastery
AgenticMart scanned Claude Code Mastery on Nov 5, 2026 with automated checks for hidden code, known-malicious packages, leaked secrets and vulnerable dependencies. The result covers one commit under our scan policy, so review what access you give it and check any advisories shown here.
What it can access
- An MCP server is a program your AI app starts and talks to. A local one runs with your user's permissions: it can see the files, environment variables and network your account can.
- Based on its description and topics, it likely needs to run shell commands.
Before you install
- Keep tool-call approval on, and run it in a container if you can.
- Pin the version you reviewed instead of always installing the latest release.
- Read the tool list or scripts before the first run, and keep approval prompts on for actions that write, send or delete.
- Maintained by TheDecipherist on GitHub, 558 stars and 48 forks. Popularity is not proof of safety.
- Last code change: May 7, 2026.
- Open-source license: MIT.
Claude Code Mastery is an open-source mcp server by TheDecipherist, written mainly in Shell. The complete guide to Claude Code: CLAUDE.md, hooks, skills, MCP servers, and commands
At a glance
- Stars
- 558
- Forks
- 48
- Language
- Shell
- License
- MIT
- Created
- Jan 2026
- Last update
- May 7, 2026
- Type
- MCP Server
- Price
- Free
Topics
Questions about Claude Code Mastery
What is Claude Code Mastery?
The complete guide to Claude Code: CLAUDE.md, hooks, skills, MCP servers, and commands
Who maintains Claude Code Mastery?
Claude Code Mastery is maintained by TheDecipherist on GitHub (TheDecipherist/claude-code-mastery). AgenticMart lists it from public repository data.
Is Claude Code Mastery safe to use?
AgenticMart scanned Claude Code Mastery on Nov 5, 2026 with automated checks for hidden code, known-malicious packages, leaked secrets and vulnerable dependencies. The result covers one commit under our scan policy, so review what access you give it and check any advisories shown here.
What license does Claude Code Mastery use?
It is published under the MIT license.
Claude Code Mastery alternatives
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