deep-research

name

deep-research

description

Deep, multi-source, fact-checked research — especially time-sensitive or factual questions (latest / current / best / newest / benchmark / price / who / when / so sánh / mới nhất / dữ liệu / nghiên cứu / tìm hiểu / đào sâu). Plan the question, search several sources, CROSS-VERIFY every claim against authoritative/primary sources, sanity-check recency, flag conflicts, and answer with citations. Use whenever accuracy matters more than speed.

Skill: Deep research (verify before you answer)

Time-sensitive and factual questions are exactly where a model confidently states STALE or WRONG things — trusting its training cutoff, or an SEO/aggregator page. Do not. Follow this pipeline; correctness over speed.

The pipeline

1. Plan — restate the question, then break it into 2-5 sub-questions / angles. For a multi-angle one, todo_write the angles so you cover them all.
2. Search broadly — web_search EACH angle. Don't stop at the first hit; gather several candidate sources per angle.
3. Read the real sources — web_fetch the actual pages (not just the snippet). For any number / fact, go to the PRIMARY source (official site, model card, the dataset/leaderboard itself), not a blog about it.
4. VERIFY — the step that prevents wrong answers:
   • Cross-reference: confirm each key fact across >=2 independent sources. One source = not verified yet.
   • Source quality: prefer authoritative / primary (official sites, model cards, standards bodies, well-known leaderboards) over SEO/aggregator/content-farm pages. Distrust auto-generated or list-bait pages.
   • Recency + sanity: check the date. For "latest / current / best", a source must be recent. SANITY-CHECK: if a "2026 newest" list includes something clearly old (e.g. a 2023-era model among "the newest"), the source is STALE — discard it, don't repeat it.
   • Conflicts: if sources disagree, say so and weigh by authority + recency; never silently pick one.
   • Your training is NOT a source: it has a cutoff. Do not fill gaps from memory. If you couldn't verify something, say you couldn't.
5. Answer with citations — give the answer, attach the source URL + date to each key claim, and flag anything uncertain or conflicting. Brief is fine: cited + correct beats long + confidently wrong.

Honest output

• If reputable sources conflict or are thin, SAY SO ("sources disagree on X" / "couldn't verify Y") rather than guessing.
• State the as-of date for anything time-sensitive (prices, rankings, who holds an office, "the best/latest").
• A short, well-sourced "here's what I could verify, here's what I couldn't" beats a confident wrong table.