Argyph: A Single MCP Server for Claude Code with 19 Structured Code Understanding Tools

If you've used Claude Code on a real codebase, you've likely hit the wall where it greps blindly or pulls whole files into context. Argyph is a single MCP server that indexes your repository and exposes 19 tools to the agent — returning bounded spans instead of dumping entire files. It runs entirely on your machine with no API key needed.

Setup

Add it in one line:

claude mcp add argyph -- npx argyph@latest

Then in any repo:

argyph init

What It Does

• Structural queries: find_definition, find_references, get_callers, get_callees, call graphs, etc. — all returning pointed spans, not full files.
• Semantic search: built-in vector store with a bundled local embedding model. Semantic search builds in the background on first run.
• Token-budgeted repo packing: pack relevant context within a token budget for the agent.
• Read-only: never edits, commits, or executes code.
• Speed: ready in under a second on a previously-indexed repo. First run: structural queries within seconds; semantic search builds asynchronously.
• Feedback: tools return an index_coverage field so the agent knows what's available.

Why It Matters

Argyph replaces the handful of separate MCP servers people usually wire up — grep, embeddings, symbol search, repomix — with one. No external API key required for full functionality; nothing leaves your laptop. Embedded vector store and local embedding model are included.

For developers running Claude Code on large, real-world codebases, this is a practical way to give the agent fast, structured, and semantic context without blowing context windows.

GitHub: https://github.com/Ezzy1630/argyph