xmp4 — Semantic code knowledge for your stack MCP server

LSP-style position→symbol lookup. Given (file_path, line, column) returns the symbol whose occurrence covers that cursor position. line is 1-based; column is 0-based. Use after xmp4_outline/xmp4_view when you know coordinates and want the canonical symbol.

Find direct callees (methods called by) a symbol in a project. Navigate step-by-step by calling xmp4_callees again on interesting results.

Find direct callers of a symbol in a project. Navigate step-by-step by calling xmp4_callers again on interesting results.

List external dependencies of a project.

Server-side regex text search over indexed project source files. Free tier: requires file_path (single file). Premium tier (XMP4_PREMIUM_GREP_WALK=true): allows file_glob multi-file walk. Prefer xmp4_tests_for/xmp4_usages for SCIP symbols — grep is for text not indexed (comments, literals, config keys).

Usage guide for xmp4 tools — read this first to learn the correct workflow

Get type hierarchy (base, interfaces, derived) for a symbol in a project.

Get detailed information about a symbol in a project.

Get outline (all symbols) for a file in a project.

Search and browse projects by language and name. Use this first to discover projects, then use other tools with the repo name.

Search symbols in a project. Use xmp4_projects first to find the project identifier.

Get server information, version, and capabilities

Extract source code for a symbol in a project.

Find direct tests that exercise a given symbol (direct callers filtered to test-file candidates per language pattern: CSharp/Java/PHP: *Test(s).<ext>; Python: test_*.py / *_test.py; TypeScript/JavaScript: *.spec/test.{ts,js}; Rust: *_tests.rs / tests/; etc.).

Find all usages/references of a symbol in a project.

Read a raw file excerpt from an indexed project by line range. Use after xmp4_search/xmp4_outline locates the region of interest, or to expand a truncated xmp4_source snippet. Hard cap of 500 lines per call.