Download a paper PDF/CAJ from CNKI. Requires user to be logged in. Use when user wants to download a specific paper.

CNKI Paper Download (文献下载) Prerequisites User must be logged in to CNKI with download permissions. Arguments $ARGUMENTS is optionally a paper detail URL. If blank, uses current page. Steps 1. Navigate (if URL provided) If URL provided: use navigate page to go to the URL directly (no wait for needed — Step 2 handles waiting). Important : Always use navigate page instead of clicking links on the search results page. Clicking opens a new tab and wastes 3 extra tool calls ( list pages + select page + take snapshot ). 2. Check status and download (single async evaluate script) Replace FORMAT with "pdf" or "caj" : 3. Report Based on JS result: status: downloading → "PDF 下载已触发：{title}。请在 Chrome 下载管理器中查看。" error: not logged in → tell user to log in error: captcha → tell user to solve captcha Tool calls: 1–2 (navigate page if URL + evaluate script) Verified selectors Element Selector Notes PDF download pdfDown <a inside li.btn dlpdf CAJ download cajDown <a inside li.btn dlcaj Download area .download btns parent <div Not logged in .downloadlink.icon notlogged Title .brief h1 strip trailing "网络首发" Captcha detection Check tcaptcha transform dy element's getBoundingClientRect().top = 0 . Only active when top = 0 (visible). Pre loaded SDK sits at top: 1000000px .

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