pm-navigate-pages

PubMed Navigate Pages & Sort

Navigate search result pages or change sort order. Requires a previous pm-search call to know the current query, page, and size.

Arguments

$ARGUMENTS can be:

• next — go to next page
• previous — go to previous page
• page N — go to page N
• sort by date — sort by most recent
• sort by relevance — sort by best match (default)

Prerequisites

This skill requires context from a previous pm-search call:

• query: the search term
• page: current page number
• size: results per page
• total: total results count

Steps

1. Calculate new parameters

Based on $ARGUMENTS:

• next: newPage = currentPage + 1
• previous: newPage = max(1, currentPage - 1)
• page N: newPage = N
• sort by date: sort = "date", newPage = 1
• sort by relevance: sort = "relevance", newPage = 1

Compute: retstart = (newPage - 1) * size

2. Navigate to updated URL

Use mcp__chrome-devtools__navigate_page:

• url: https://pubmed.ncbi.nlm.nih.gov/?term={URL_ENCODED_QUERY}&size={size}&page={newPage}

3. Fetch results (evaluate_script)

Same pattern as pm-search step 2, with updated retstart and sort:

async () => {
  const query = "PREVIOUS_QUERY";
  const page = NEW_PAGE;
  const size = CURRENT_SIZE;
  const sort = "SORT_VALUE";
  const retstart = (page - 1) * size;

  const searchResp = await fetch(
    `https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=${encodeURIComponent(query)}&retmax=${size}&retstart=${retstart}&retmode=json&sort=${sort}`
  );
  const searchData = await searchResp.json();
  const ids = searchData.esearchresult?.idlist || [];
  const total = parseInt(searchData.esearchresult?.count || '0');

  if (ids.length === 0) return { query, total, page, results: [] };

  const sumResp = await fetch(
    `https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esummary.fcgi?db=pubmed&id=${ids.join(',')}&retmode=json`
  );
  const sumData = await sumResp.json();

  const results = ids.map((id, i) => {
    const r = sumData.result?.[id] || {};
    const doi = (r.articleids || []).find(a => a.idtype === 'doi')?.value || '';
    return {
      n: retstart + i + 1,
      pmid: id,
      title: r.title || '',
      authors: (r.authors || []).map(a => a.name).join(', '),
      journal: r.fulljournalname || '',
      source: r.source || '',
      pubdate: r.pubdate || '',
      doi,
      pubtype: (r.pubtype || []).join(', ')
    };
  });

  const totalPages = Math.ceil(total / size);
  return { query, total, page, totalPages, size, sort, results };
}