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Claude Code Explorer MCP server

by divu2025·io.github.divu2025/codemaster·v1.1.0·3.4k stars
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Explore the Claude Code CLI source — browse tools, commands, search code, and more.

A88/100grade A
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Safety scan
A88/100

full report

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3.4k stars28 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Claude Code Explorer MCP tools (8)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • get_architecture

    Get a high-level architecture overview of Claude Code.

  • get_command_source

    Read the source code of a specific Claude Code slash command.

  • get_tool_source

    Read the full source code of a specific Claude Code tool implementation.

  • list_commands

    List all Claude Code slash commands (/commit, /review, /mcp, etc.) with their source files.

  • list_directory

    List files and subdirectories under src/.

  • list_tools

    List all Claude Code agent tools (BashTool, FileReadTool, etc.) with their source files.

  • read_source_file

    Read any source file from the Claude Code src/ directory by relative path.

  • search_source

    Search for a regex pattern across the Claude Code source. Returns matching lines with paths and line numbers.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan15 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 29 days ago15/15
  • Maintainer identitynamespace and repository owner differ; GitHub account older than a year5/10
Overall 88/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install Claude Code Explorer MCP in Claude Code, Cursor or VS Code

Runs npx -y @divyesh2000/codemaster on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add codemaster -- npx -y @divyesh2000/codemaster
Add to Cursor

What the publisher says

From the Claude Code Explorer MCP repository's README, as published. We do not edit it. Read it on GitHub

Claude Code — Leaked Source

The full source code of Anthropic's Claude Code CLI, leaked on March 31, 2026

The original unmodified leaked source is preserved in the backup branch.

The X-Ray Intelligence Engine for Your Codebase.

Understand Any CodebaseX-Ray Any Repo, in Seconds. repoxray.2clabs.tech

Spend less time reading code, more time building.

Table of Contents

  • How It Leaked
  • What Is Claude Code?
  • Documentation
  • Explore with MCP Server
  • Directory Structure
  • Architecture
  • Tool System
  • Command System
  • Service Layer
  • Bridge System
  • Permission System
  • Feature Flags

How It Leaked

Chaofan Shou (@Fried_rice) discovered that the published npm package for Claude Code included a .map file referencing the full, unobfuscated TypeScript source — downloadable as a zip from Anthropic's R2 storage bucket.

"Claude code source code has been leaked via a map file in their npm registry!"

— @Fried_rice, March 31, 2026

What Is Claude Code?

Claude Code is Anthropic's official CLI tool for interacting with Claude directly from the terminal — editing files, running commands, searching codebases, managing git workflows, and more. This repository contains the leaked src/ directory.

� Documentation

For in-depth guides, see the docs/ directory:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Claude Code Explorer MCP: common questions

Is Claude Code Explorer MCP server safe?
Yes, by our scan: it is graded A (88/100). Read the Claude Code Explorer MCP safety report
How do I install Claude Code Explorer MCP?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Claude Code Explorer MCP need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Claude Code Explorer MCP maintained?
The last commit was 45 days ago (2026-08-29). The latest release is v1.1.0.
What can I use instead of Claude Code Explorer MCP?
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