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Merge pull request #294 from matteo8p/create-helper-functions-tool-visibility

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Add `isToolVisibilityModelOnly` and `isToolVisibilityAppOnly` helper functions
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Anton Pidkuiko 2026-02-02 23:15:46 +00:00 • committed by GitHub
commit 398f5b4e4a
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1 changed files with 182 additions and 1 deletions
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31
src/app-bridge.ts
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@ -78,6 +78,7 @@ import {
McpUiRequestDisplayModeRequestSchema,
McpUiRequestDisplayModeResult,
McpUiResourcePermissions,
McpUiToolMeta,
} from "./types";
export * from "./types";
export { RESOURCE_URI_META_KEY, RESOURCE_MIME_TYPE } from "./app";
@ -110,7 +111,7 @@ export { PostMessageTransport } from "./message-transport";
*/
export function getToolUiResourceUri(tool: Partial<Tool>): string | undefined {
// Try new nested format first: _meta.ui.resourceUri
const uiMeta = tool._meta?.ui as { resourceUri?: unknown } | undefined;
const uiMeta = tool._meta?.ui as McpUiToolMeta | undefined;
let uri: unknown = uiMeta?.resourceUri;
// Fall back to deprecated flat format: _meta["ui/resourceUri"]
@ -126,6 +127,34 @@ export function getToolUiResourceUri(tool: Partial<Tool>): string | undefined {
return undefined;
}
/**
* Check if a tool is visible to the model only.
*
* @param tool - Tool object with visibility metadata
* @returns True if the tool is visible to the model only, false otherwise
*/
export function isToolVisibilityModelOnly(tool: Partial<Tool>): boolean {
const uiMeta = tool._meta?.ui as McpUiToolMeta | undefined;
const visibility = uiMeta?.visibility as Array<"model" | "app"> | undefined;
if (!visibility) return false;
if (visibility.length === 1 && visibility[0] === "model") return true;
return false;
}
/**
* Check if a tool is visible to the app only.
*
* @param tool - Tool object with visibility metadata
* @returns True if the tool is visible to the app only, false otherwise
*/
export function isToolVisibilityAppOnly(tool: Partial<Tool>): boolean {
const uiMeta = tool._meta?.ui as McpUiToolMeta | undefined;
const visibility = uiMeta?.visibility as Array<"model" | "app"> | undefined;
if (!visibility) return false;
if (visibility.length === 1 && visibility[0] === "app") return true;
return false;
}
/**
* Build iframe `allow` attribute string from permissions.
*