Koragraph MCP server

What it does

Koragraph indexes multiple repositories into a local code graph, resolving calls, imports, inheritance, and cross-service edges across 12 languages using tree-sitter. It provides MCP tools for exploring code relationships, understanding blast radius before edits, and anchoring durable facts to code declarations in a local SQLite store.

• Understand what code depends on a symbol before editing it, including untested dependents.
• Query call graphs, imports, and cross-repo HTTP/gRPC edges to trace how changes propagate.
• Store and retrieve code-anchored facts like hazards, rules, and corrections that persist across renames and refactors.

Tools this server exposes

Tool	Does
explore	Find declarations by symbol or plain English, with ranked results including source, callers, and callees.
blast_radius	Identify what depends on a symbol and which dependents lack test coverage.
search_code	Locate a name in the code graph by structural resolution rather than raw text search.
neighbours	Return the callers and callees of a given symbol.
changes_with	Show what has historically changed together with a symbol based on git history.
file_symbols	List all declarations in a single file.
overview	Provide a store-level index across all indexed repositories.
recall	Retrieve stored facts like failed attempts, fixes, hazards, and reverts.
remember	Save a durable, code-anchored fact to the local SQLite store.

Before you enable it

An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.