Symbols MCP
Read, inspect and navigate through codebase symbols by connecting to Language Servers.
Introduction
By connecting to a Language Server of choice this MCP server makes it easy and efficient for coding agents to explore and navigate the codebase and its dependencies. The server offers a minimal set of tools, resources and skills intended to be simple to use and light on the model's context.
Tools
outline: returns an outline of code symbols in a file, optionally with a small code snippetinspect: returns docs, declaration and implementation locations for a symbol, including third-party onessearch: returns matching symbols across the codebasereferences: finds all references of a symbol across the codebasecall_hierarchy: returns incoming and outgoing call relationships for a callable symbolrename: renames all references of a symbol across the codebasediagnostics: returns active diagnostics in a given filecompletion: returns contextual completions at a given locationreload: reloads the effective config and reapplies it to currently running language servers
Resources
language-servers://profiles: returns the configured language servers along with their state.language-servers://profiles/{name}: returns a more detailed view of one language server.language-servers://profiles/{name}/logs: returns the Language Server logs for troubleshooting.
Skills
install-language-server: installs, configures, validates, or troubleshoots a language-server profile for the current workspace.language-server-navigation: guides symbol inspection, references, rename, diagnostics, and search through Language Server tools before falling back to text search.
Installation
Codex
codex plugin marketplace add p1va/symbols
codex plugin add symbols@symbols
Then ask Codex:
Please install and configure the language servers relevant to this codebase
Antigravity
agy plugin install https://github.com/p1va/symbols.git
Then ask Antigravity:
Install and configure the language servers relevant to this codebase.
Manual Installation
For manual configuration and language servers examples see here.
Development
pnpm lintoutputs the lint violationspnpm lint:fixattempts to fix lint violationspnpm formatformats the codebasepnpm format:checkchecks formatting without changing filespnpm devstarts in development modepnpm buildruns the linter and buildpnpm startstarts the built artifactspnpm test:unitruns the unit testspnpm test:integration:{language id}runs the integration tests for a given language
Release
pnpm version patchto synchronize generated assets, bump the version, and create a single commit and tag. Useminorormajorwhen appropriate.git push --follow-tagsto push the commit and tag.
The version lifecycle checks formatting, mirrors .agents/skills/ into the
Antigravity and Codex distributions, and updates the versioned Codex plugin
manifest before the commit and tag are created.