get_package_types
Retrieve TypeScript type definitions from a specific npm package to enable generation of type-safe mocks and test data.
Instructions
Get all type definitions from a specific package
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| packageName | Yes | Name of the package to get types from |
Implementation Reference
- src/type-indexer.ts:403-418 (handler)Core handler logic: iterates over program source files filtered by package, extracts type definitions using extractTypeDefinitions.
async getPackageTypes(packageName: string): Promise<TypeDefinition[]> { if (!this.program) { throw new Error("TypeIndexer not initialized. Call initialize() first."); } const results: TypeDefinition[] = []; for (const sourceFile of this.program.getSourceFiles()) { if (this.isFromPackage(sourceFile.fileName, packageName)) { const definitions = this.extractTypeDefinitions(sourceFile); results.push(...definitions); } } return results; } - src/mcp-server.ts:322-337 (handler)MCP server tool handler: validates args, calls typeIndexer.getPackageTypes, formats JSON response.
private async handleGetPackageTypes(packageName: string) { const results = await this.typeIndexer.getPackageTypes(packageName); return { content: [ { type: "text", text: JSON.stringify({ packageName, results, count: results.length }, null, 2) } ] }; } - src/mcp-server.ts:227-230 (registration)Tool registration in CallToolRequestHandler switch statement.
case "get_package_types": { const packageArgs = this.validateArgs<ToolArguments["get_package_types"]>(args); return await this.handleGetPackageTypes(packageArgs.packageName); } - src/mcp-server.ts:127-139 (schema)Input schema and metadata registered in ListToolsRequestHandler.
name: "get_package_types", description: "Get all type definitions from a specific package", inputSchema: { type: "object", properties: { packageName: { type: "string", description: "Name of the package to get types from" } }, required: ["packageName"] } }, - src/mcp-server.ts:19-19 (schema)TypeScript interface definition for tool arguments.
get_package_types: { packageName: string };