assistant-stream/dist/ai-sdk/frontendTools.js

Streaming utilities for AI assistants

import { unwrapModelContentEnvelope } from "./modelContentEnvelope.js";
import { toAISDKContent, toAISDKDefaultOutput } from "./toolOutputConversion.js";
import { gateway, jsonSchema } from "ai";
// src/ai-sdk/frontendTools.ts
const supportsTaggedFileData = gateway.specificationVersion === "v4";
const defaultToModelOutput = ({ output }) => {
	const { result, modelContent } = unwrapModelContentEnvelope(output);
	if (modelContent === void 0) return toAISDKDefaultOutput(result);
	return supportsTaggedFileData ? toAISDKContent(modelContent, { taggedFileData: true }) : toAISDKContent(modelContent, { taggedFileData: false });
};
const isPlainObject = (value) => typeof value === "object" && value !== null && !Array.isArray(value);
function validateFrontendTool(name, tool) {
	if (!isPlainObject(tool)) throw new Error(`frontendTools() expected tool "${name}" to be an object with a JSON Schema parameters object.`);
	if (!isPlainObject(tool.parameters)) throw new Error(`frontendTools() expected tool "${name}" to include a JSON Schema parameters object.`);
	if (tool.description !== void 0 && typeof tool.description !== "string") throw new Error(`frontendTools() expected tool "${name}" description to be a string.`);
	if (tool.providerOptions !== void 0 && !isPlainObject(tool.providerOptions)) throw new Error(`frontendTools() expected tool "${name}" providerOptions to be an object.`);
}
function validateFrontendTools(tools) {
	if (!isPlainObject(tools)) throw new Error("frontendTools() expected tools to be an object keyed by tool name.");
	for (const [name, tool] of Object.entries(tools)) validateFrontendTool(name, tool);
}
const frontendTools = (tools) => {
	validateFrontendTools(tools);
	return Object.fromEntries(Object.entries(tools).map(([name, tool]) => [name, {
		...tool.description !== void 0 && { description: tool.description },
		inputSchema: jsonSchema(tool.parameters),
		toModelOutput: defaultToModelOutput,
		...tool.providerOptions && { providerOptions: tool.providerOptions }
	}]));
};
export { frontendTools };

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