Ollama MCP Server

import { markdownTable } from 'markdown-table'; import { ResponseFormat } from '../types.js'; /** * Format response content based on the specified format */ export function formatResponse( content: string, format: ResponseFormat ): string { if (format === ResponseFormat.JSON) { // For JSON format, validate and potentially wrap errors try { // Try to parse to validate it's valid JSON JSON.parse(content); return content; } catch { // If not valid JSON, wrap in error object return JSON.stringify({ error: 'Invalid JSON content', raw_content: content, }); } } // Format as markdown try { const data = JSON.parse(content); return jsonToMarkdown(data); } catch { // If not valid JSON, return as-is return content; } } /** * Convert JSON data to markdown format */ function jsonToMarkdown(data: any, indent: string = ''): string { // Handle null/undefined if (data === null || data === undefined) { return `${indent}_null_`; } // Handle primitives if (typeof data !== 'object') { return `${indent}${String(data)}`; } // Handle arrays if (Array.isArray(data)) { if (data.length === 0) { return `${indent}_empty array_`; } // Check if array of objects with consistent keys (table format) if ( data.length > 0 && typeof data[0] === 'object' && !Array.isArray(data[0]) && data[0] !== null ) { return arrayToMarkdownTable(data, indent); } // Array of primitives or mixed types return data .map((item) => `${indent}- ${jsonToMarkdown(item, '')}`) .join('\n'); } // Handle objects const entries = Object.entries(data); if (entries.length === 0) { return `${indent}_empty object_`; } return entries .map(([key, value]) => { const formattedKey = key.replace(/_/g, ' '); if (typeof value === 'object' && value !== null) { if (Array.isArray(value)) { return `${indent}**${formattedKey}:**\n${jsonToMarkdown(value, indent + ' ')}`; } return `${indent}**${formattedKey}:**\n${jsonToMarkdown(value, indent + ' ')}`; } return `${indent}**${formattedKey}:** ${value}`; }) .join('\n'); } /** * Convert array of objects to markdown table using markdown-table library */ function arrayToMarkdownTable(data: any[], indent: string = ''): string { if (data.length === 0) return `${indent}_empty_`; // Get all unique keys from all objects const allKeys = new Set<string>(); data.forEach((item) => { if (item && typeof item === 'object') { Object.keys(item).forEach((key) => allKeys.add(key)); } }); const keys = Array.from(allKeys); // Format headers (replace underscores with spaces) const headers = keys.map((k) => k.replace(/_/g, ' ')); // Build table data const tableData = data.map((item) => { return keys.map((key) => { const value = item[key]; if (value === null || value === undefined) return ''; if (typeof value === 'object') return JSON.stringify(value); return String(value); }); }); // Generate markdown table const table = markdownTable([headers, ...tableData]); // Add indent to each line if needed if (indent) { return table .split('\n') .map((line) => indent + line) .join('\n'); } return table; }