Codebase indexing and search via WASM tree-sitter. Works on ARM64 and x86_64.
MCP server for codebase indexing and search that works on every platform — including ARM64 devices like Raspberry Pi and Apple Silicon where most alternatives fail.
Popular codebase-indexing MCP servers like @zilliz/claude-context-mcp depend on native C++ bindings (tree-sitter, faiss-node) that ship pre-built binaries only for x86_64. If you're on ARM64 — a Raspberry Pi, Apple Silicon Mac, AWS Graviton, or any other arm64 host — npm install fails with missing prebuilts and no fallback. There's no workaround short of cross-compiling the native modules yourself.
This package replaces every native dependency with a WASM equivalent. The tree-sitter parser runs as WebAssembly, search uses a pure-JS BM25 implementation, and the index is stored as plain JSON. Zero native bindings means npm install succeeds on the first try on any architecture: ARM64, x86_64, macOS, Linux, Windows.
Drop-in compatible — provides the same core tools (index, search, outline, summary) via the standard MCP stdio transport.
| Tool | Description |
|---|---|
index_codebase | Parse a directory into symbols/chunks, cache as JSON |
search_symbols | Find functions, classes, types by name or pattern |
search_code | BM25 full-text search across indexed files |
get_file_outline | File structure: functions, classes, imports, exports with line numbers |
get_project_summary | Tech stack, file counts by language, directory structure |
TypeScript, TSX, JavaScript, Python, C#, VB.NET, XML, CSS, JSON
claude mcp add codebase-context -s user -- npx codebase-context-mcp
Or from a local clone:
git clone https://github.com/Jhackman2019/codebase-context-mcp.git
cd codebase-context-mcp
npm install && npm run build
claude mcp add codebase-context -s user -- node /path/to/codebase-context-mcp/dist/index.js
{
"mcpServers": {
"codebase-context": {
"command": "npx",
"args": ["codebase-context-mcp"]
}
}
}
web-tree-sitter (WASM) — same AST quality as native tree-sitter, runs on any architecture~/.codebase-context-mcp/<project-hash>.json@modelcontextprotocol/sdk| Limit | Value |
|---|---|
| Max files | 20,000 |
| Max file size | 512KB |
| Default ignores | node_modules, .git, dist, build, .venv, binaries, lock files |
| .gitignore | Respected (root level) |
npm install
npm run build # Build with tsup
npm run dev # Watch mode
npm start # Run the server
MIT
Source-derived launch command. Check the maintainer’s required arguments and credentials before running:
npx -y codebase-context-mcpMerge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.
{
"mcpServers": {
"io-github-jhackman2019-codebase-context-mcp": {
"command": "npx",
"args": [
"-y",
"codebase-context-mcp"
]
}
}
}Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.
Claude Desktop setup referencecodebase-context-mcpnpmio.github.Jhackman2019/codebase-context-mcp works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.
~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.~/.cursor/mcp.jsonRestart Cursor for changes to take effect..vscode/mcp.jsonReload VS Code window for changes to take effect.~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect..mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.