TypeScript LSP

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name: typescript-lsp

description: TypeScript language server providing type checking, code intelligence, and LSP diagnostics for .ts, .tsx, .js, .jsx, .mts, .cts, .mjs, .cjs files. Use when working with TypeScript or JavaScript code that needs type checking, autocomplete, error detection, refactoring support, or code navigation.

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# TypeScript LSP

TypeScript/JavaScript language server integration providing comprehensive code intelligence through typescript-language-server.

Capabilities

Installation

Install TypeScript language server and TypeScript compiler:

npm install -g typescript-language-server typescript

Or with yarn:

yarn global add typescript-language-server typescript

Verify installation:

typescript-language-server --version
tsc --version

Usage

The language server runs automatically in LSP-compatible editors. For manual type checking:

tsc --noEmit  # Type check without generating output files

Compile TypeScript files:

tsc src/index.ts

Watch mode for continuous type checking:

tsc --watch --noEmit

Configuration

Create `tsconfig.json` in project root:

{
  "compilerOptions": {
    "target": "ES2020",
    "module": "ESNext",
    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true,
    "resolveJsonModule": true,
    "moduleResolution": "node"
  },
  "include": ["src/**/*"],
  "exclude": ["node_modules", "dist"]
}

Integration Pattern

When editing TypeScript/JavaScript code:

1. Run `tsc --noEmit` after significant changes

2. Address type errors before committing

3. Use `tsc --watch` during active development

4. Leverage quick fixes for common issues

Common Flags

More Information