MCP TypeScript SDK

import { BaseMetadata } from "../types.js"; /** * Utilities for working with BaseMetadata objects. */ /** * Gets the display name for an object with BaseMetadata. * For tools, the precedence is: title → annotations.title → name * For other objects: title → name * This implements the spec requirement: "if no title is provided, name should be used for display purposes" */ export function getDisplayName(metadata: BaseMetadata): string { // First check for title (not undefined and not empty string) if (metadata.title !== undefined && metadata.title !== '') { return metadata.title; } // Then check for annotations.title (only present in Tool objects) if ('annotations' in metadata) { const metadataWithAnnotations = metadata as BaseMetadata & { annotations?: { title?: string } }; if (metadataWithAnnotations.annotations?.title) { return metadataWithAnnotations.annotations.title; } } // Finally fall back to name return metadata.name; }