Pierre Fitness Platform MCP Server

// ABOUTME: Utility functions for insight detection and prompt generation // ABOUTME: Identifies insight prompts and their corresponding assistant responses import type { Message } from '@pierre/shared-types'; import { stripContextPrefix } from './message'; /** * The standard prefix used for insight generation prompts. * This is used as the detection marker for insight messages. */ export const INSIGHT_PROMPT_PREFIX = 'Create a shareable insight from this analysis'; /** * Check if a message content is an insight generation prompt. * Insight prompts are hidden from display in the chat UI. * * @param content - The message content to check * @returns true if the content starts with the insight prompt prefix */ export const isInsightPrompt = (content: string): boolean => { return content.startsWith(INSIGHT_PROMPT_PREFIX); }; /** * Scan message history to find assistant messages that are insight responses. * An insight response is an assistant message that immediately follows an insight prompt. * * @param messages - Array of chat messages to scan * @returns Set of message IDs that are insight responses */ export const detectInsightMessages = (messages: Message[]): Set<string> => { const insightIds = new Set<string>(); for (let i = 0; i < messages.length - 1; i++) { const currentMsg = messages[i]; const nextMsg = messages[i + 1]; // If current is an insight prompt (user) and next is assistant, mark it as insight if ( currentMsg.role === 'user' && isInsightPrompt(currentMsg.content) && nextMsg.role === 'assistant' ) { insightIds.add(nextMsg.id); } } return insightIds; }; /** * Generate a standardized insight generation prompt from message content. * This strips any context prefix from the content before creating the prompt. * * @param content - The message content to create an insight from * @returns The formatted insight prompt string */ export const createInsightPrompt = (content: string): string => { return `${INSIGHT_PROMPT_PREFIX}:\n\n${stripContextPrefix(content)}`; };