Browse and sort Polymarket markets, events, or categories.
**When to use:**
- Broad discovery, screening, and ranked browsing across many markets.
- Do NOT use this to resolve one named market/event/slug/URL — use
`prediction_market_lookup` instead.
**Query tips:**
- Literal-style matching on text and slugs, not fuzzy web search.
- Prefer one short topic or slug fragment (e.g. `fed cuts`, `zelensky`,
`ncaa tournament`).
- Do not bundle unrelated topics (e.g. `bitcoin ethereum politics
weather`). If a broad question spans several topics, run separate
screener queries for each.
- If a query returns no rows, do not invent a nearest match — try a
narrower topic or say no data was returned.
**Output rules:**
- Superlatives (highest, leading, biggest, top, trending) must match the
shown metric exactly.
- Do not infer end dates, rankings, or category leadership from titles
alone.