Find prior work that may already contain a claim of an ML paper.

Before calling: decompose ONE claim into 6 to 10 component queries, one per technique, objective, data-construction step or problem framing. Phrase each the way a prior paper's abstract would describe that component: a declarative sentence of 10 to 40 words, not a question, not naming this paper or its method name. Set before to the paper's submission date so later work is excluded. Call once per claim.

Returns up to k (default 40) candidates in a cheap first-stage order: title, year, venue, authors, abstract, link, seed_count, the queries that found it and a BibTeX entry. The order is not a judgement. You must read the abstracts and label each candidate yourself: same (it already contains the claim), close, builds on, or different, with a one-line reason; show same and close first. Never declare the paper novel or not novel overall.

Privacy: runs on your machine. Your PDF and its text never leave it, except to Anthropic under your own API key when you call review_paper. What is sent: search queries and paper keys to the Reviewer Zero index (it counts requests per API key and stores nothing else), and, for check_citations, the titles, DOIs and arXiv ids of the works the paper cites, to the index and to OpenAlex, Crossref and arXiv. No telemetry.

Look up one paper in the Reviewer Zero index by key: a bare arXiv id (2106.09685) or a key returned by find_prior_work (openalex:W..., s2:...). Returns title, authors, year, venue, DOI, arXiv id, abstract, a link and a BibTeX entry. Fails with a clear message if the key is unknown.

Privacy: runs on your machine. Your PDF and its text never leave it, except to Anthropic under your own API key when you call review_paper. What is sent: search queries and paper keys to the Reviewer Zero index (it counts requests per API key and stores nothing else), and, for check_citations, the titles, DOIs and arXiv ids of the works the paper cites, to the index and to OpenAlex, Crossref and arXiv. No telemetry.

List the papers one paper cites (direction "cites") or the papers in the Reviewer Zero index that cite it (direction "cited_by"), with metadata and BibTeX for each. Use it to follow a candidate from find_prior_work one hop. limit is 1 to 200 (default 50).

Privacy: runs on your machine. Your PDF and its text never leave it, except to Anthropic under your own API key when you call review_paper. What is sent: search queries and paper keys to the Reviewer Zero index (it counts requests per API key and stores nothing else), and, for check_citations, the titles, DOIs and arXiv ids of the works the paper cites, to the index and to OpenAlex, Crossref and arXiv. No telemetry.

Check a paper PDF against a venue's format and anonymization rules, locally and for free (no LLM, nothing sent anywhere). venue: iclr2027, neurips2026, icml2026, cvpr2027, acl or other; stage: submission, camera_ready or preprint. At submission, anonymization problems (author names or affiliations on page 1, emails, first-person self-citations, identifying URLs, PDF metadata) are violations. Page limits and required sections are checked only for venues whose rules are built (ICLR 2027, NeurIPS 2026, ICML 2026); for the others the result says so. Report every violation with its page and evidence; never rewrite the paper.

Privacy: runs on your machine. Your PDF and its text never leave it, except to Anthropic under your own API key when you call review_paper. What is sent: search queries and paper keys to the Reviewer Zero index (it counts requests per API key and stores nothing else), and, for check_citations, the titles, DOIs and arXiv ids of the works the paper cites, to the index and to OpenAlex, Crossref and arXiv. No telemetry.

Check every reference of a paper PDF: resolve it (the Reviewer Zero index first, then OpenAlex, Crossref and arXiv) and flag references that cannot be found, have the wrong year or wrong authors, are cited as arXiv preprints although now published, or are listed twice. No LLM is used and no API key other than the index key is needed.

Sent off your machine: the titles, DOIs and arXiv ids of the works the paper cites (to the index and to OpenAlex, Crossref and arXiv) — never the paper's own text. The reference list is read by a local GROBID container if one is running, otherwise from the PDF's text layer; the result says which (parser). Report each flag with the reference as printed and what it resolved to; a reference that did not resolve is not proof it does not exist.

Privacy: runs on your machine. Your PDF and its text never leave it, except to Anthropic under your own API key when you call review_paper. What is sent: search queries and paper keys to the Reviewer Zero index (it counts requests per API key and stores nothing else), and, for check_citations, the titles, DOIs and arXiv ids of the works the paper cites, to the index and to OpenAlex, Crossref and arXiv. No telemetry.

Check that quotes you intend to cite from a paper appear in its PDF word for word, and on which page. Use it on every quote before putting it in a review: a quote that is not verified must not be presented as the paper's text. Whitespace, line-break hyphenation, ligatures and punctuation are forgiven; added, dropped or changed words are not. Join separate fragments with "..." only when they appear in order, close together. Quotes need at least 5 words. Up to 50 quotes per call. Local only: nothing is sent anywhere.

Privacy: runs on your machine. Your PDF and its text never leave it, except to Anthropic under your own API key when you call review_paper. What is sent: search queries and paper keys to the Reviewer Zero index (it counts requests per API key and stores nothing else), and, for check_citations, the titles, DOIs and arXiv ids of the works the paper cites, to the index and to OpenAlex, Crossref and arXiv. No telemetry.

Run the full Reviewer Zero review of a paper PDF (claims, prior work, citations with support checks, methodology, writing, format) with our prompts, using the user's own ANTHROPIC_API_KEY. It costs real money (usually about $1.50 to $2.00) and takes 7 to 12 minutes.

ALWAYS call it first with confirm=false: that spends nothing and returns the estimate and the hard limit. Show both to the user and call again with confirm=true only after they agree. If a call times out, call again with the same PDF: finished steps are served from the cache and only what is left is paid for.

novelty="full" (default) sends the 150 best candidates per claim to the reranker; novelty="lite" sends 60 (quicker and cheaper, lower recall; see the README for the measured recall and time of each).

Report findings evidence-first, each with its quote. Never give a score, rating or accept/reject verdict, and never rewrite the user's text. Without ANTHROPIC_API_KEY or a local GROBID container it explains what is missing; check_format, check_citations, find_prior_work, paper and citations work without a key.

Sent off your machine by this tool: the paper's text to Anthropic under your own key; search queries and cited works' titles/DOIs/arXiv ids to the index, OpenAlex, Crossref and arXiv.

Privacy: runs on your machine. Your PDF and its text never leave it, except to Anthropic under your own API key when you call review_paper. What is sent: search queries and paper keys to the Reviewer Zero index (it counts requests per API key and stores nothing else), and, for check_citations, the titles, DOIs and arXiv ids of the works the paper cites, to the index and to OpenAlex, Crossref and arXiv. No telemetry.