mcp-casual-interview/dist/mcp/tool/prompts/handler.js

MCP server for casual interview preparation workflow management

import { PROMPT_TEMPLATES, substituteVariables, formatPromptResult, errorMessages } from './prompts.js';
import { toStructuredCallToolResult } from '../util.js';
/**
 * Handler for prompts tool
 * Retrieves prompts by name and supports variable substitution
 */
export const promptsHandler = async (params) => {
    try {
        // Get the prompt template
        const template = PROMPT_TEMPLATES[params.name];
        if (!template) {
            return toStructuredCallToolResult([errorMessages.promptNotFound(params.name)], {
                name: params.name,
                content: '',
                variables_used: []
            }, true);
        }
        // Substitute variables
        const { content, variablesUsed } = substituteVariables(template, params.variables);
        // Format human-readable response
        const message = formatPromptResult(params.name, content, variablesUsed);
        // Return structured result
        return toStructuredCallToolResult([message], {
            name: params.name,
            content,
            variables_used: variablesUsed
        }, false);
    }
    catch (error) {
        const message = error instanceof Error ? error.message : String(error);
        return toStructuredCallToolResult([errorMessages.unexpectedError(message)], {
            name: params.name,
            content: '',
            variables_used: []
        }, true);
    }
};
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