Universal Code Navigator - a lightweight MCP server that gives AI agents call-graph-level understanding of code. Instead of reading entire files, agents ask structural questions like: "who calls this function", "what breaks if I change it", "what's unused", and get precise, AST-verified answers. UCN parses JS/TS, Python, Go, Rust, Java, and HTML inline scripts with tree-sitter, then exposes 28 navigation commands as a CLI tool, MCP server, or agent skill.
Installation
npx -y ucn --mcpView configuration snippet
{
"mcpServers": {
"ucn": {
"command": "npx",
"args": [
"-y",
"ucn",
"--mcp"
]
}
}
}💡 Tip: Make sure you have the appropriate package manager installed. Refer to the official documentation for detailed installation instructions.
Compatibility Matrix
Cursor
Claude Desktop
MCP Compatible
Server Information
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