Rarefaction

LSP call graph for coding agents: a symbol's callers, callees, tests and live files in one call.

Connector by ip2k · GitHub account verified by the MCP Registry

IndexedGPL-3.0Local (stdio)

Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/ip2k-rarefaction-lsp-mcp

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

LSP call graph for coding agents: a symbol's callers, callees, tests and live files in one call.

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools: 3 read · 0 write · 0 deleteRead-only
Secrets: None asked for
Install scripts: Not scanned yet
Runs as: Node.js package

Tools by what they do 3

Read from the source code; the running server may list different tools.

Read 3 · Look things up without changing anything.

orient
scope
status

Tools (3)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

orientOrient on a symbolread-only
Compact source context from language-server indexes: signature, body, callers, callees, tests, implementations and relevant files. Use before broad file reads in Swift, Rust, C/C++, TypeScript/JavaScript, Python and WebAssembly WAT projects. In mixed workspaces specify profile or use path:line:column. No cross-language/FFI edges are inferred. Increase up/down only when needed.
scopeWorking set for a changeread-only
The files a change to one symbol is likely to touch: orient's call-graph files (callers, callees, implementations, tests) plus files that have historically changed in the same commits as the symbol's file, each with its reason. Use when planning an edit, to know which files to read and check. Advisory, not a boundary: real changes often touch files outside it.
statusProject, language server and index statusread-only
Check detected source-language profiles, project roots, executables, compile flags and freshness. Call once before orient in a new project or when orientation is incomplete. Pass profile/project to inspect a nested package.

Signals

Stars: 0
Forks: 0
Open issues: 0
Last commit: Oct 21, 2026 (8 days ago)
Last release: Oct 21, 2026 (8 days ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name: io.github.ip2k/rarefaction-lsp-mcp
Version: 0.4.2
Auth: No auth
Packages: npm rarefaction-lsp-mcp
License: GPL-3.0
Repository: github.com/ip2k/rarefaction
Website: github.com/ip2k/rarefaction#readme
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: Official MCP Registry github-graphql