deep-research — cited, cross-checked web research

Use this for any question that needs current, verifiable information from the web. The deliverable is a synthesized answer where every load-bearing claim is backed by a source you actually read.

Tools

• search_web_pages(query, [site], [published_after], [published_before], [mode])

— discover candidate sources. Write the query as a natural-language description of the ideal page, not keywords. Use mode: pro (default).

• fetch_page_content(url, [max_chars]) — read the full page (markdown). A

search snippet is NEVER sufficient evidence — fetch before you cite.

Procedure

1. Plan. Break the question into 3-6 focused sub-queries that together

cover it. For contested or high-stakes questions, plan at least two independent angles.

1. Search. Run search_web_pages per sub-query. Prefer primary sources;

use published_after for anything time-sensitive.

1. Read. fetch_page_content on the 2-3 most promising results per

sub-query. Quote/cite only what you read, not what a snippet implied.

1. Cross-check. Verify every load-bearing claim against ≥2 INDEPENDENT

sources (independent = different owners, not mirrors of one another). When sources disagree, surface the disagreement rather than picking silently.

1. Synthesize. Write a structured answer. Each non-obvious claim gets an

inline citation to the URL you fetched. Separate "well-supported" from "uncertain / single-source".

1. Cite. End with a Sources list of the URLs you actually fetched.

Notes

• Don't answer from prior knowledge with a disclaimer — search and read first.
• If coverage is thin or sources conflict irreconcilably, say so explicitly;

an honest "the evidence is mixed" beats false confidence.

• Keep each sub-query narrow enough that a couple of fetches resolve it.