@futurelab-studio/latest-science-mcp/dist/tools/fetch-latest.js

MCP Server for Scientific Paper Harvesting from arXiv and OpenAlex

import { z } from 'zod';
import { ArxivDriver } from '../drivers/arxiv-driver.js';
import { OpenAlexDriver } from '../drivers/openalex-driver.js';
import { logInfo, logError } from '../core/logger.js';
import { DEFAULT_PAPER_COUNT, MAX_PAPER_COUNT } from '../config/constants.js';
// Zod schema for input validation
export const fetchLatestSchema = z.object({
    source: z.enum(['arxiv', 'openalex']),
    category: z.string().min(1),
    count: z.number().min(1).max(MAX_PAPER_COUNT).default(DEFAULT_PAPER_COUNT)
});
/**
 * MCP tool: fetch_latest
 * Fetches the latest papers from arXiv or OpenAlex for a given category
 */
export async function fetchLatest(input, rateLimiter) {
    try {
        logInfo('fetch_latest tool called', {
            source: input.source,
            category: input.category,
            count: input.count
        });
        let papers;
        if (input.source === 'arxiv') {
            const driver = new ArxivDriver(rateLimiter);
            papers = await driver.fetchLatest(input.category, input.count);
        }
        else {
            const driver = new OpenAlexDriver(rateLimiter);
            papers = await driver.fetchLatest(input.category, input.count);
        }
        logInfo('fetch_latest completed successfully', {
            source: input.source,
            category: input.category,
            papersReturned: papers.length
        });
        return { content: papers };
    }
    catch (error) {
        logError('fetch_latest tool failed', {
            error: error instanceof Error ? error.message : error,
            source: input.source,
            category: input.category
        });
        throw error;
    }
}
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