/**
 * MCP Apps (SEP-1865) tool visibility. A tool whose `_meta.ui.visibility` does
 * not include `"model"` is for the app (the rendered view) and is never offered
 * to the model; neither is one whose visibility is present but cannot be read.
 * No `_meta`, no `ui`, or no `visibility` is the spec's default (the model and
 * the app).
 *
 * `listed` is the tool as its MCP listing carried it. The agent SDKs' own tool
 * types do not declare `_meta`, so it is read structurally.
 */
export declare function modelMayCallTool(listed: object): boolean;
/**
 * The same rule as an OpenAI Agents SDK `toolFilter` callable, for a worker that
 * builds its own `MCPServerStreamableHttp` (the code-mode template does):
 * `new MCPServerStreamableHttp({ url, name, toolFilter: modelVisibleToolFilter })`.
 * The SDK awaits it for each listed tool, `_meta` included.
 */
export declare function modelVisibleToolFilter(_context: object, tool: object): Promise<boolean>;
//# sourceMappingURL=mcp-visibility.d.ts.map