How to Get a Codebase Overview with Codebase-Memory-MCP: A Complete Guide

Codebase-Memory-MCP provides a lightweight, two-part system—comprising a Go bootstrap wrapper and a compiled CLI binary—that indexes your repository into a searchable memory model and renders it as an interactive 3-D visualization without requiring you to clone the entire source tree.

Codebase-Memory-MCP (CBM) is an open-source tool from DeusData that transforms repository exploration into a fast, visual experience. Instead of navigating raw file trees manually, you can generate a compact memory representation of any codebase and query it via command-line tools or explore it through a React-Three-Fiber interface. This guide covers the exact steps to install the bootstrapper, run the indexing commands, and launch the visualization UI.

Install the Bootstrap Wrapper

The entry point to Codebase-Memory-MCP is a tiny Go wrapper located at pkg/go/cmd/codebase-memory-mcp/main.go. You install this wrapper once using the Go toolchain, and it handles downloading and caching the actual CLI binary.

go install github.com/DeusData/codebase-memory-mcp/pkg/go/cmd/codebase-memory-mcp@latest

How the Bootstrapper Works

When you execute the codebase-memory-mcp command, the wrapper performs four critical operations defined in main.go:

• ensureBinary – Checks if the binary exists in the cache; if not, triggers the download workflow.
• download – Fetches the pre-compiled CBM binary from GitHub Releases for your specific platform.
• verifyChecksum – Validates the downloaded file against SHA-256 hashes stored in scripts/vendored-checksums.txt to prevent tampering.
• execBinary – Replaces the wrapper process with the actual binary using syscall.Exec on Unix systems or exec.Command on Windows.

The wrapper hard-codes the current release version (version = "0.8.1") and forces all network traffic to HTTPS via the httpsOnlyClient configuration.

Index and Query Your Codebase

Once the bootstrapper caches the binary (default location: ~/.cache/codebase-memory-mcp), you can invoke the core CLI directly. The CLI builds a compact memory representation of files, directories, and their relationships.

Core CLI Commands

The compiled binary supports three primary operations for obtaining a codebase overview:

• codebase-memory-mcp list – Displays the top-level files and directories in the indexed repository.
• codebase-memory-mcp search <pattern> – Finds every file matching a specific pattern, such as imports containing "logger".
• codebase-memory-mcp graph – Exports a GraphViz-compatible JSON description that maps file dependencies and structure.

# Index and explore the current directory

codebase-memory-mcp list
codebase-memory-mcp search logger
codebase-memory-mcp graph > graph.json

The wrapper forwards all arguments you supply directly to the binary via the execBinary function, so you can use any sub-commands supported by the release.

Visualize with the React-Three-Fiber UI

For interactive exploration, Codebase-Memory-MCP includes a lightweight frontend in the graph-ui/ directory. After generating a graph description with the CLI, you can load it into the 3-D visualization interface.

Launching the Interactive Graph

The UI depends on React-Three-Fiber, Three.js, and related 3-D utilities listed in graph-ui/package.json.

cd graph-ui
npm install    # Installs @react-three/fiber, three, and dev dependencies

npm run dev    # Opens http://localhost:5173

Once the development server starts, load the graph.json file you exported earlier to explore the codebase as an interactive 3-D graph of files and dependencies.

Configuration and Security

Codebase-Memory-MCP implements strict security controls and flexible configuration options for enterprise environments.

Cache Location and Environment Variables

By default, the wrapper caches binaries in ~/.cache/codebase-memory-mcp, determined by the cacheDir() function. You can override this location using the CBM_CACHE_DIR environment variable:

export CBM_CACHE_DIR=$HOME/.my-cbm-cache
codebase-memory-mcp list    # Binary and checksums cached under custom directory

Checksum Verification and HTTPS Enforcement

The bootstrapper enforces two security layers implemented in main.go:

• HTTPS-only transport – The validateURLScheme function ensures all download URLs use HTTPS, and httpsOnlyClient prevents cleartext connections.
• SHA-256 verification – Every downloaded binary is checked against the corresponding hash in scripts/vendored-checksums.txt before execution.

Summary

• Install once: Use go install to deploy the wrapper at pkg/go/cmd/codebase-memory-mcp/main.go, which automatically downloads and verifies the platform-specific binary.
• Query instantly: Run list, search, or graph commands to generate a searchable memory model of your repository structure without local cloning.
• Visualize interactively: Export JSON from the CLI and load it into the React-Three-Fiber UI in graph-ui/ to navigate dependencies in 3-D space.
• Configure securely: Override the default ~/.cache/codebase-memory-mcp location with CBM_CACHE_DIR; all downloads are protected by HTTPS enforcement and SHA-256 checksum validation.

Frequently Asked Questions

What is the difference between the wrapper and the binary in Codebase-Memory-MCP?

The wrapper is the small Go program you install via go install. It handles platform detection, downloading, caching, and security verification before executing the actual binary, which is the pre-compiled CLI tool that performs the indexing, searching, and graph generation. The wrapper remains lightweight while the binary contains the heavy logic for codebase analysis.

How does Codebase-Memory-MCP handle binary updates?

The wrapper hard-codes a specific version string (0.8.1) and fetches binaries from the corresponding GitHub Release tag. To update to a newer version, you reinstall the wrapper using go install ...@latest, which will pull the updated version constant and download the matching binary release automatically.

Can I use my own visualization tools instead of the provided UI?

Yes. The codebase-memory-mcp graph command outputs a standard JSON format compatible with GraphViz and other graph-rendering tools. While the graph-ui/ directory provides a convenient React-Three-Fiber frontend for 3-D exploration, you can redirect the JSON output to any visualization pipeline that accepts node-edge graph descriptions.

Where are the release checksums stored for verification?

The SHA-256 checksums for all platform binaries are stored in scripts/vendored-checksums.txt within the repository. During the bootstrap process, the wrapper downloads this file alongside the binary and uses the verifyChecksum function to ensure the downloaded artifact matches the expected hash before execution.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}