@arizeai/phoenix-evals/dist/esm/llm/createToolSelectionEvaluator.js

A library for running evaluations for AI use cases

import { TOOL_SELECTION_CLASSIFICATION_EVALUATOR_CONFIG } from "../__generated__/default_templates/index.js";
import { createClassificationEvaluator } from "./createClassificationEvaluator.js";
/**
 * Creates a tool selection evaluator function.
 *
 * This function returns an evaluator that determines whether the correct tool
 * was selected for a given context. Unlike the tool invocation evaluator which
 * checks if the tool was called correctly with proper arguments, this evaluator
 * focuses on whether the right tool was chosen in the first place.
 *
 * The evaluator checks for:
 * - Whether the LLM chose the best available tool for the user query
 * - Whether the tool name exists in the available tools list
 * - Whether the correct number of tools were selected for the task
 * - Whether the tool selection is safe and appropriate
 *
 * @param args - The arguments for creating the tool selection evaluator.
 * @param args.model - The model to use for classification.
 * @param args.choices - The possible classification choices (defaults to correct/incorrect).
 * @param args.promptTemplate - The prompt template to use (defaults to TOOL_SELECTION_TEMPLATE).
 * @param args.telemetry - The telemetry to use for the evaluator.
 *
 * @returns An evaluator function that takes a {@link ToolSelectionEvaluationRecord} and returns
 * a classification result indicating whether the tool selection is correct or incorrect.
 *
 * @example
 * ```ts
 * const evaluator = createToolSelectionEvaluator({ model: openai("gpt-4o-mini") });
 *
 * const result = await evaluator.evaluate({
 *   input: "User: What is the weather in San Francisco?",
 *   availableTools: `WeatherTool: Get the current weather for a location.
 * NewsTool: Stay connected to global events with our up-to-date news around the world.
 * MusicTool: Create playlists, search for music, and check the latest music trends.`,
 *   toolSelection: "WeatherTool"
 * });
 * console.log(result.label); // "correct" or "incorrect"
 * ```
 */
export function createToolSelectionEvaluator(args) {
    const { choices = TOOL_SELECTION_CLASSIFICATION_EVALUATOR_CONFIG.choices, promptTemplate = TOOL_SELECTION_CLASSIFICATION_EVALUATOR_CONFIG.template, optimizationDirection = TOOL_SELECTION_CLASSIFICATION_EVALUATOR_CONFIG.optimizationDirection, name = TOOL_SELECTION_CLASSIFICATION_EVALUATOR_CONFIG.name, ...rest } = args;
    return createClassificationEvaluator({
        ...rest,
        promptTemplate,
        choices,
        optimizationDirection,
        name,
    });
}
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